BIOL1028

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399 Terms

1
List 5 main characteristics of animal cell
Plasma membrane, Cytoplasm, Nucleus, Mitochondria, Ribosome

Charistics:

Animal cells are eukaryotic cells → contain nucleus and cell membranes to bound organells

Non cell wall

Typically smaller than plant cells

Specializes to perform specific functions

Contain many organells: mitochondria, Golgi apparatus, endoplasmic reticulum, lysosome, etc.
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2
Rank the following terms from simplest to most complex: cells, organelles, organs, tissue, organism
Organells → Cells → Tissues → Organs → Organism
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3
Which cell feature is responsible for making proteins?

Lysosomes

Ribosomes

Mitochondria
Ribosome
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4
What is the name of the jelly-like substance that is inside the cell?

Cytoplasm

Ectoplasm

Cytokinesis
Cytoplasm
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5
What cell feature is responsible for powering the cell?

Endoplasmic reticulum

Golgi apparatus

Mitochondria
Mitochondria
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6
Where in the cell does DNA replication take place?

Ribosomes

Nucleus

Nucleolus
Nucleus
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7
What cell feature contains digestive enzymes which breaks things down?

Lysosomes

Ribosomes

Vacuoles
Lysosomes
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8
Which cell feature processes proteins?

Endoplasmic reticulum

Chloroplasts

Golgi apparatus
Golgi apparatus
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9
Which cell feature transports ribosome?

Endoplasmic reticulum

Golgi apparatus

Mitochondria
Endoplasmic reticulum
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10
What cell feature is responsible for storing water?

Mitochondria

Lysosome

Vacuole
Vacuole
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11
Choromosomes are found in ………………………..of cells.

The nucleus

The cytoplasm

Both the nucleus and cytoplasm
The nucleus
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12
The smooth ER is especially abundant in cell that synthesize extensive amounts of

Toxins

Protein

Enzymes

Lipids

Nucleic acids
Lipids
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13
The term "nuclear envelope" is more correct than the term "nuclear membrane" because

The enclosures has pores which membrane do not

The enclosure is made up of two membrane

The chemical composition is inconsistent with cellular membranes

None of the above. The two terms are perfect synonyms
The enclosure is made up of two membrane
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14
Oxidative metabolism is carried out ____ of mitochondria.

In the intermembrane space

On the surface of the inner membrane

In the inside of the outer membrane

In the matrix
On the surface of the inner membrane
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15
Proteins synthesized by the rough ER are………..

For internal storage

To build more membranes in the cell

To digest food in lysosomes

For internal regulator

Exported from the cell
Exported from the cell
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16


Passage through pores in the nuclear envelope is restricted primarily to

Proteins, RNA and protein-RNA

Lipids and glycolipids

DNA and RNA

RNA and protein-carbohydrate complexes

Marker proteins for the plasma membrane
Proteins, RNA and protein-RNA
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17
Glycoproteins and glycolipids assembled in Golgi bodies are packaged for distribution in………………..

Cisternae

Lysosomes

Peroxisomes

Liposomes

Glyoxysomes
Cisternae
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18
The rough ER is so named because it has an abundance of …………………on it.

Mitochondria

Lysosomes

Golgi bodies

Ribosomes

Vesicles
Ribosomes
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19
The cytoskeleton includes all of the following except

Microtubules

Intermediate filaments

Myosin filaments

Actin filaments

All of the above are included
Myosin filaments
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20
Ribosomes are found……………                       

a.     Only in the nucleus

b.     In the cytoplasm

c.     Attached to the smooth endoplasmic reticulum

d.     Only in eukaryotic cells

e.     Both b and c
In the cytoplasm
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21
The Golgi apparatus involved in

a.     Transporting proteins that are to be released from the cell

b.     Packaging proteins into vesicles

c.     Altering or modifying proteins

d.     Producing lysosomes

e. All of above
All of above
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22
The major job of the ribosome is to

a.     Make fats

b.     Make proteins

c.     Break down proteins

d.     Make sugar
Make proteins
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23
Proteins embedded in the cell membrane function to………………..

Transport materials in and out of the cell

Carry genetic information

Store excess water

Produce energy for the cell
Transport materials in and out of the cell
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24
This organelle stores the DNA in the cell

a. Nucleus

b. Chloroplast

c. Vacuole
Nucleus
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25
Which of the following is the energy supplier for the cell; this organelle contains its own DNA

a. Lysosome

b. Mitochondria

c. Golgi apparatus

d. Endoplasmic reticulum

e. Ribosome
Mitochondria
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26
The cell membrane is composed of ………………

a. A single layer of proteins

b. A phospholipid bi-layer

c. A carbohydrate bi-layer

d. A single layer of lipids
A phospholipid bi-layer
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27
The ………………..acts as a packaging and processing center in the cell to process proteins.

a. Smooth E.R.

b. Rough E.R.

c. Golgi body

d. Nucleus
Golgi body
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28
When red blood cells are placed in a concentrated salt solution, they will…………….

Enlarge, but not burst

Enlarge until they burst

Remain unchanged

Shrink
Shrink
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29
The outer most boundary of an animal cell is ……………………

a. the cell wall                   

b. the cytoskeleton

c. nuclear envelope                    

d. the cell membrane
the cell membrane
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30
Cell contents are isolated from many substances in the environment due to the high concentration of…………………..in the cell membrane

a. Phospholipids and cholesterol

b. Proteins

c. Nucleic acids

d. Enzymes
Phospholipids and cholesterol
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31
A cell that had relatively few energy needs would probably have a relatively small number of

a. Chromosomes         

b. lysosomes  

c. ribosomes      

d. mitochondria
mitochondria
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32
Which of the following processes requires both carrier molecules and energy?

a. Osmosis

b. facilitated transport

c. active transport

d. all a, b and c require carriers and energy
active transport
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33
Which of the following substances is able to freely move across the cell membrane?

a. Water                            

b. lipid soluble molecules

c. water soluble proteins               

d. nucleic acids

e. both a and b
both a and b
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34
When two solutions that differ in solute concentration are placed on either side of a semi-permeable membrane and osmosis is allowed to occur, which of the following will happen?

a. Water will move from an area of high solute concentration to an area of low solute concentration

b. There will be no net movement of water

c. The solute will move from the area of high concentration to an area of low concentration

d. Water will move from an area of low solute concentration to an area of high solute concentration
Water will move from an area of low solute concentration to an area of high solute concentration
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35
The concentration of calcium in a cell is 0.3%. The concentration of calcium in the fluids surrounding the cell is 0.1%. How could the cell obtain more calcium?

a. facilitated diffusion                                          

b. active transport

c. diffusion                                                    

d. osmosis
active transport
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36
Which statement is correct concerning the sodium-potassium pump?

a. an equal concentration of sodium and potassium ions are exchanged

b. it is used in order to generate ATP for cellular activities

c. the ions move directly through the phospholipids of the plasma membrane

d. sodium ions are pumped out of the cell
sodium ions are pumped out of the cell
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37
Which of the following pieces of evidence would suggest that a substance entered a cell via active transport as opposed to passive transport?

a.     ATP was required for transport

b.     the substance moved across the membrane via a carrier protein

c.     the substance moved from a high concentration to a low concentration

d.     none of the above
ATP was required for transport
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38
Which one of the following cell structures exhibits selective permeability between a cell and its external environment?

a. the plasma membrane                   

b.  mitochondria

c.  chloroplasts                                   

d. endoplasmic reticulum

e.  lysosomes
the plasma membrane
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39
Which of the following statements about the role of phospholipids in forming membranes is correct? 

a. Phospholipids are completely insoluble in water.

b. Phospholipids form a single sheet in water.

c. Phospholipids form a structure in which the hydrophobic portion faces outward.

d. Phospholipids form a selectively permeable structure.

e. They are triacylglycerols, which are commonly available in foods.
Phospholipids form a selectively permeable structure.
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40
The plasma membrane is referred to as a "fluid mosaic" structure. Which of the following statements about that model is true?

a. The fluid component of the membrane is composed of phospholipids, and the mosaic part is composed of carbohydrates.

b. The fluid aspect of the membrane describes its structure at normal temperatures, and the mosaic aspect describes the membrane as the temperature is lowered.

c. The mosaic comprises the carbohydrate chains on the inner surface of the membrane.

d. The fluid component of the membrane is phospholipid, and the mosaic is protein.

e. Only phospholipids are capable of moving in the membrane.
The fluid component of the membrane is phospholipid, and the mosaic is protein.
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41
Which of the following types of information is most likely to be derived from freeze-fracture of biological samples?

a. the coded information in DNA

b. thin sections of fixed and embedded cells

c.  proteins embedded in membrane bilayers

d.  patterns of movement in living cells

e.  all of the above
proteins embedded in membrane bilayers
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42
Consider the currently accepted fluid mosaic model of the plasma membrane. Where in the plasma membrane would cholesterol most likely be found?

a. on the outside surface of the membrane

b. in the interior of the membrane.

c.  on the inside (cytoplasmic) surface

d. in the interior and on the inside surface, but not on the outside surface

e. on either surface of the membrane, but not in the interior of the membrane
in the interior of the membrane.
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43
Which of the following functional processes result (s) from the presence of proteins in or on the plasma membrane?

a. enzymatic activity

b. cell-cell recognition

c. intercellular joining

d. cell-cell communication

e. all of the above
all of the above
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44
Which of the following is/are a function of membrane proteins?

a. Membrane proteins attach the membrane to the cytoskeleton.

b. Membrane proteins provide receptors for chemical messengers.

c. Membrane proteins form channels, which move substances across the membrane.

d. Membrane proteins with short sugar chains form identification tags that are recognized by other cells.

 e. all of the above
all of the above
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45
Which one of the following statement concerning carbohydrates associated with the plasma membrane is correct?

a. Carbohydrates are only found associated with the membranes of prokaryotic cells.

b. The carbohydrate composition of most eukaryotic plasma membranes is quite similar.

c. Carbohydrates on the plasma membrane are typically short chains of 2-5 monosaccharides.

d. Membrane carbohydrates function primarily in cell-cell recognition.

e. Carbohydrates associated with the plasma membrane are located on both surfaces of the membrane.
Membrane carbohydrates function primarily in cell-cell recognition.
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46
Consider the currently accepted fluid mosaic model of the plasma membrane. Where in the membrane would carbohydrates most likely be found?

a.on the outside (external) surface of the membrane

b.in the interior of the membrane

c.on the inside (cytoplasmic) surface of the membrane

d.on both hydrophilic surfaces of the membrane but not in the hydrophobic interior

e.Carbohydrates are rarely associated with plasma membranes.
on the outside (external) surface of the membrane
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47
Which one of the following molecules is most likely to diffuse freely across the lipid bilayer of the plasma membrane without the involvement of a transport protein?

a.carbon dioxide

b.glucose

c.sodium ion

d.DNA

e.hemoglobin
carbon dioxide
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48
Which of the following would be least likely to diffuse through a plasma membrane without the help of a transport protein?

a. a large polar molecule

b. a large nonpolar molecule

c. dissolved gases such as oxygen or carbon dioxide

d. a small nonpolar molecule

e. Any of the above would easily diffuse through the membrane.
a large polar molecule
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49
Which of the following structures is most consistent with the selective permeability property of biological membranes?

a.proteins sandwiched between two layers of phospholipid

b.proteins embedded in two layers of phospholipid

c. a layer of protein coating a layer of phospholipid

d.phospholipids sandwiched between two layers of protein

e.a phospholipid bilayer with proteins scattered on the surfaces of the membranes
proteins embedded in two layers of phospholipid
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50
Which of the following statements about passive transport is correct?

a. Passive transport operates independently of diffusion.

b. Passive transport operates independently of the concentrations of the substance being transported.

c. In passive transport, all movement of the transported molecule stops when its concentration is the same on both sides of the membrane.

d. Passive transport does not occur in the animal body.

e. Passive transport permits the transported molecule to move in either direction, but the majority of transport occurs down the concentration gradient of the molecule.
Passive transport permits the transported molecule to move in either direction, but the majority of transport occurs down the concentration gradient of the molecule.
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51
Cells A and B are the same size, shape, and temperature, but cell A is metabolically quiet and cell B is actively consuming oxygen. Oxygen will diffuse more quickly into cell _____ because _____. 

a. A; the diffusion gradient there is shallower

b. A; its membrane transport proteins will not be saturated

c. B; the diffusion gradient in cell B is steeper

d. B; the oxygen molecules inside cell B have a higher kinetic energy

e. B; the gradient of oxygen is oriented in the opposite direction compared to cell A
B; the diffusion gradient in cell B is steeper
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52
Which one of the following statements about diffusion is true?

a. It is very rapid over long distances.

b. It requires expenditure of energy by the cell.

c. It is a passive process.

d. It occurs when molecules move from a region of lower concentration to a region of higher concentration.

e. It always requires integral proteins of the cell membrane
It is a passive process.
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53
Which of these statements describes some aspect of facilitated diffusion?

a. Facilitated diffusion is another name for osmosis.

b. Facilitated diffusion of solutes occurs through phospholipid pores in the membrane.

c. Facilitated diffusion requires energy to drive a concentration gradient.

d. Facilitated diffusion of solutes may occur through protein pores in the membrane.

e. There is only one kind of protein pore for facilitated diffusion.
Facilitated diffusion of solutes may occur through protein pores in the membrane
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54
Which of the following is true about facilitated diffusion?

a. Facilitated diffusion requires a concentration gradient.

b. Facilitated diffusion requires a membrane.

c. Facilitated diffusion involves proteins.

d. Facilitated diffusion does not involve an outside energy source.

e. all of the above
all of the above
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55
Active transport requires a cell to expend energy. Which of the following statements is true?

a. Active transport often involves an ATP-powered ion pump and a cotransport protein.

b. Active transport usually uses ATP as its energy source.

c. Active transport moves solutes against the concentration gradient.

d. Active transport requires a protein carrier.

e. all of the above
all of the above
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56
Which of the following is a correct difference between active transport and facilitated diffusion?

a. Active transport involves transport proteins, and facilitated diffusion does not.

b. Facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.

c. Active transport can move solutes in either direction across a membrane, but facilitated diffusion can only move in one direction.

d. Facilitated diffusion involves transport proteins, and active transport does not.

e. Active transport requires energy from ATP, and facilitated diffusion does not.
Active transport requires energy from ATP, and facilitated diffusion does not.
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57
Which of the following enables a cell to pick up and concentrate a specific kind of molecule?

a. passive transport      

b. facilitated diffusion

c. osmosis                    

d. receptor-mediated endocytosis

e. channel proteins
receptor-mediated endocytosis
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58
Which of the following processes, normally associated with membrane transport, must occur to account for an increase in the surface area of a cell?

a. endocytosis

b. active transport

c. receptor-mediated endocytosis

d. exocytosis

e. flip-flop of phospholipids from one side of the plasma membrane to the other
exocytosis
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59
The transmission of nerve impulses between adjacent nerve cells requires the release of a neurotransmitter (a molecule or small peptide) by exocytosis. Which of the following would best reverse the process that resulted in the release of neurotransmitter, returning the cell to its original state?

a. endocytosis

b. pinocytosis

c. active transport of the neurotransmitter back into the cell

d. passive transport (by facilitated diffusion) of the neurotransmitter back into the cell

e. receptor-mediated endocytosis
receptor-mediated endocytosis
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60
Which one of the following pairs correctly matches a membrane transport process to its primary function?

a. phagocytosis; secretion of large particles from the cell by fusion of vesicles with the plasma membrane

b. exocytosis; the movement of water and solutes out of the cell by vesicle fusion with the plasma membrane

c. pinocytosis; the uptake of water and small solutes into the cell by formation of vesicles at the plasma membrane.

d. osmosis; passive diffusion of water and small solutes across a membrane e. none of the above
pinocytosis; the uptake of water and small solutes into the cell by formation of vesicles at the plasma membrane
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61
In what way do the membranes of a eukaryotic cell vary?

a. Phospholipids are found only in certain membranes.

b. Certain proteins are unique to each membrane.

c. Only certain membranes of the cell are selectively permeable.

d. Only certain membranes are constructed from amphipathic molecules.

e. Some membranes have hydrophobic surfaces exposed to the cytoplasm, while others have hydrophilic surfaces facing the cytoplasm.
Certain proteins are unique to each membrane
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62
According to the fluid mosaic model of membrane structure, proteins of the membrane are mostly

a. spread in a continuous layer over the inner and outer surfaces of the membrane.

b. confined to the hydrophobic core of the membrane.

c. embedded in a lipid bilayer.

d. randomly oriented in the membrane, with no fixed inside-outside polarity.

e. free to depart from the fluid membrane and dissolve in the surrounding solution.
embedded in a lipid bilayer
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63
Which of the following factors would tend to increase membrane fluidity?

a. a greater proportion of unsaturated phospholipids

b. a greater proportion of saturated phospholipids

c.  a lower temperature

d. a relatively high protein content in the membrane

e.  a greater proportion of relatively large glycolipids compared with lipids having smaller molecular masses
a greater proportion of unsaturated phospholipids
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64
A major chemical that regulates the fluidity of animal cell membranes by stiffening the membrane at higher temperatures and preventing the membrane from freezing at lower temperature is:

a. cholesterol.

b. lipid in nature.

c. a steroid.

d. All of the choices are correct.
cholesterol
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65
Proteins in a membrane are:

a. peripheral if they are on the inside surface held in place by the cytoskeleton.

b. integral if they are embedded in the membrane and protrude from both surfaces of the bilayer.

c. integral if they protrude from only one surface of the bilayer.

d. All of the choices are correct.
All of the choices are correct.
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66
Active transport

a. requires an input of ATP.

b. is involved in diffusion.

c. occurs in osmosis and facilitated transport.

d. All of the choices are correct.
requires an input of ATP.
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67
In a phospholipid bilayer, the

a. phosphate groups are hydrophobic.

b. fatty acid tails are ionized.

c. fatty acid tails are hydrophilic.

d. proteins are located only between the two layers.

e. phosphate heads are oriented toward the exterior of the cell or toward the cytoplasm.
phosphate heads are oriented toward the exterior of the cell or toward the cytoplasm.
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68
Which statement is true about the plasma membrane?

a. The proteins make up the matrix of the membrane.

b. The model can be likened to a sandwich where phospholipids are like the bread and proteins are like the filling.

c. The fluid nature of the membrane is regulated by flip-flopping of the phospholipids from one side of the membrane to the other.

d. The movement of proteins and phospholipids can occur sideways within the plane of the membrane.
The movement of proteins and phospholipids can occur sideways within the plane of the membrane.
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69
Which statement is NOT true about the proteins in the plasma membrane?

a. Proteins may be attached to the inner surface of the plasma membrane.

b. The hydrophobic portion of a protein is embedded within the membrane.

c. Some peripheral proteins are connected to cytoskeletal filaments.

d. Integral proteins are responsible for membrane functions.

e. Glycoproteins contain carbohydrate chains that are oriented toward the inner surface of the membrane.
Glycoproteins contain carbohydrate chains that are oriented toward the inner surface of the membrane.
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70
Which phrase does NOT describe one of the functions of proteins of the plasma membrane?

a. forming a channel through the membrane

b. initiating the replication of the genetic material

c. binding to a substance to carry it through the membrane

d. acting as a receptor for substances external to the cell

e. increasing the rate of a chemical reaction
initiating the replication of the genetic material
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71
Whether a molecule can cross the plasma membrane depends upon

a. the size of the molecule.

b. the shape of the molecule.

c. the chemical properties of the molecule.

d. the charge of the molecule.

e. All of the choices are correct.
All of the choices are correct.
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72
If a cell is placed in a hypotonic solution, which will occur?

a. Salts will move into the cell from the surrounding solution.

b. Water will move into the cell from the surrounding solution.

c. Salts will move out of the cell into the surrounding solution.

d. Water will move out of the cell into the surrounding solution.

e. None of the choices will occur.
Water will move into the cell from the surrounding solution.
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73
Which is the best definition of osmosis?

a. The movement of molecules from an area of their higher concentration to an area of their lower concentration.

b. The movement of water across a semi permeable membrane from an area of higher water concentration to an area of lower water concentration.

c. The movement of molecules from an area of their lower concentration to an area of their higher concentration.

d. The movement of water across a semi permeable membrane from an area of lower water concentration to an area of higher water concentration.

e. The movement of a substance against its concentration gradient through the release of energy from ATP.
The movement of water across a semi permeable membrane from an area of higher water concentration to an area of lower water concentration.
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74
Which type of molecule will require some amount of energy to cross the cell membrane?

a. glycerol

b. polar

c. non-polar molecules

d. carbon dioxide e. oxygen
polar
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75
The major functions of the plasma membrane do NOT include

a. separation of the fluid environments inside and outside the cell.

b. regulation of molecules and ions that pass into and out of the cell.

c. recognition and communication between different cells and tissues.

d. maintaining connections between adjacent cells.

e. production of proteins used in construction of the cell wall.
production of proteins used in construction of the cell wall.
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76
Which is the best definition of active transport?

a. movement of molecules from an area of their higher concentration to an area of their lower concentration

b. movement of water across a semi permeable membrane from an area of higher water concentration to an area of lower water concentration

c. movement of molecules from an area of their lower concentration to an area of their higher concentration

d. movement of water across a semi permeable membrane from an area of lower water concentration to an area of higher water concentration

e. movement of a substance against its concentration through the release of energy from ATP
movement of a substance against its concentration through the release of energy from ATP
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77
Sugars and amino acids are carried into the cell by means of

a. facilitated transport              

b. diffusion      

c. endocytosis.

d. exocytosis.
facilitated transport
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78
A 10% glucose solution is placed in the thistle tube. The thistle tube is placed in a beaker that contains a 5% glucose solution. The solution in the thistle tube is _______ to the solution in the beaker.

a. Hypertonic      

b. Hypotonic       

c. Isotonic      

d. None of the above
Hypertonic
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79
Eukaryotic cells are substantially larger than bacterial cells and average over 20 times more volume-per-surface-area than bacterial cells. How can the eukaryotic cell membrane provide this higher rate of exchange of materials?

a. Plasma membrane folds increase the surface area.

b. Carrier proteins speed the rate at which a solute crosses the plasma membrane in the direction of decreasing concentration.

c. Mitochondria are concentrated near membranes to provide energy for active transport of molecules or ions.

d. Large molecules are engulfed by vesicle formation.

e. All of the choices are correct.
All of the choices are correct.
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80
Which of the following is an example of active transport through a cell membrane?

a. Movement of carbon dioxide out of the blood stream and into the lungs

b. Movement of oxygen from the lungs into the bloodstream

c. Movement of sweat onto the surface of your skin

d. Absorption of glucose from the gut into the bloodstream
Absorption of glucose from the gut into the bloodstream
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81
If a cell is placed in a hypotonic solution, which will occur?

a. Salts will move into the cell from the surrounding solution.

b. Water will move into the cell from the surrounding solution.

c. Salts will move out of the cell into the surrounding solution.

d. Water will move out of the cell into the surrounding solution.

e. None of the choices will occur.
Water will move into the cell from the surrounding solution.
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82
What type of transport mechanism is required to move sodium ions against their concentration gradient?

a. active

b. passive

c. diffusion

d. osmosis
active
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83
Which process is responsible for moving cellular wastes across the cell membrane?

a. endocytosis

b. exocytosis

c. pinocytosis

d. receptor-mediated endocytosis
exocytosis
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84

Homeostasis is also termed a dynamic equilibrium because:

  1. the body maintains an internal balance, within fluctuating limits

  2. in Homeostasis parts of the system change but the overall system stays constant

  3. all of the above

all of the above
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85

What component of all homeostatic control systems relays the information back to the appropriate regulator?

  1. Monitor

  2. Sensor

  3. Regulator

  4. Coordinating center

Coordinating center
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86

Osmoreceptors detect changes in:

  1. Blood pressure

  2. Osmotic pressure

  3. Blood viscosity

Osmotic pressure
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87

Nervous system consists of the CNS and PNS

  1. True

  2. False

True
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88

The central nervous system is the nerves of the brain and spinal cord

  1. True

  2. False

Flase
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89
Match the parts of a nerve cell with the right answer

a. Myelin sheath

b. Dendrites

c. Axon   

1\. Projections of cytoplasm that carry impulses towards the cell

2\. Insulated covering over the axon of the nerve cell

3\. Extension of cytoplasm that carries nerve impulses away from the cell body
a-2

b-3

c-1
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90
What are the two types of nerve cells?
Neuron and neuoglia/ glial cells
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91
What are the two types of neuron?
Sensory and motor neurons
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92

The fluid matrix inside the cell is called………………………………

  1. Nucleoplasm

  2. Endoplasm

  3. Cytosol

Cytosol
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93
The cytosol consists of all the following except

a. Organelles

b. Water

c. Cell membrane
Cell membrane
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94
A single axon is classified as a __________.

a. ganglion

b. nerve fiber

c. nerve tract
nerve fiber
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95
The myelinated axons in the spinal cord are called __________.

        a. ganglia

        b. nerve tracts

        c. bundles of nerves
nerve tracts
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96
The brain and spinal cord have noticeable areas of gray and white. Which of the following constitutes the white matter?

        a. dendrites

        b. myelinated axons

        c. cell bodies (soma)
myelinated axons
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97
In which of these compartments is Na+ concentration the lowest?

a.    Interstitial fluid

b.    Plasma

c.    Intracellular fluid

d.    Lymph
Intracellular fluid
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98
Which statement concerning body fluid composition is correct?

a.     Intracellular fluid contains a lower concentration of proteins than interstitial fluid.

b.     Interstitial fluid contains a higher concentration of proteins than plasma.

c.     Extracellular fluid contains a higher concentration of potassium than intracellular fluid.

d.     Extracellular fluid contains a higher concentration of sodium than intracellular fluid.
Extracellular fluid contains a higher concentration of sodium than intracellular fluid.
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99
Which fluid compartment contains about 67% (by volume) of all body water?

a.    extracellular fluid

b.    plasma

c.    Intracellular fluid

d.    Lymph
Intracellular fluid
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100
The fluid secreted into the stomach by the stomach lining is part of which fluid compartment?

a.    Interstitial fluid

b.    transcellular

c.    Intracellular fluid

d.    Lymph
transcellular
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robot