College Bio Test 1

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62 Terms

1

Energy

capacity to do work

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2

Homeostasis

constant internal environment

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3

Hemoglobin

part of blood that carries oxygen

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4

Super group

Taxonomic group

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5

Invertabraes

no skeleton

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6

Vertebrae

skeleton

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7

Biodiversity

of species

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8

T/F domain bacteria/archaea contain a nucleus

False

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9

Tracer

small amount of radioisotope in a sample

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10

Adhesion

ability for water molecules to cling to the surface

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11

Buffers

prevents pH changes

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12

Cohesion

when water molecules cling to eachother

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13

Emulsification

droplet disperses in water

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14

T/F Saturated fatty acids have double bonds

False

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15

T/F Unsaturated fatty acids have double bonds

True

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16

What are Steroids?

lipids with an entirely different structure

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17

T/F Proteins account for cell movement

True

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18

What is Denaturation?

irreversible change in shape of protein

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19

What are organelles?

internal compartments that have special jobs

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20

What is endosymbiosis?

When chloroplasts do photosynthesis

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21

What is diffusion?

balancing concentrations

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22

What is Osmosis?

movement of water

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23

What is Osmotic pressures job?

to control water movement in our bodies

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24

What does Bulk transport use to move larger molecules?

Vesicles

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25

What is Chromatin made up of?

DNA, Molecules, and Protein

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26

What is the extracellular matrix?

proteins outside of the cell

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27

What is plasma?

Fluid inside the blood vessels

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28

What is the purpose of the gap junction?

To help move electrical signals quickly

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29

T/F Catalysts speed up chemical reactions

True

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30

What is the Cytoskeleton made of?

Protein

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31

Whats an example of extracellular matrix?

Collagen

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32

What are Adhesion Junctions?

Junctions that hold cells together but has a little give

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33

Which is smaller; amino acid, or a water molecule

water molecule

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34

What is the Ribosome made up of?

Protein

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35

What is endocytosis?

Where they use lysome and vesicles to break down unbroken proteins.

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36

Iso means

Same

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37

Hypo means

lower

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38

Hyper means

more

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39

Tonic means

dissolved particles

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40

What is Sooth ERs job?

Processing and creating more

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41

What is Rough ERs job?

Sending it to the golgi as vesicles

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42

atom

the smallest component of an element

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43

golgi apparatus

organelle that consists of saccules and Vesiclicles

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44

anabolism

the synthesis in living organisms of more complex substances from simpler ones together with the storage of energy

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45

Vesicle

small membrane bound sac that stores substances within a cell

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46

catabolism

breakdown in living organisms of more complex substances into simpler ones together with release of energy

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47

nucleolus

a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis

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48

nuclear pores

a minute opening or passage way through the nuclear envelope

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49

epithelial tissue

body tissue that lines body cavities and hollow organs

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50

peptide bond

bond used by amino acids to form proteins

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51

nervous tissue connective

coordinates and controls body movements

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52

enzyme

proteins that help speed up metabolism

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53

Another name for cell membrane

Plasma membrane

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54

glycogen

stored form of glucose

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55

selective permeability

ability to differentiate between different types of molecules

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56

cellulose

fibrous, and water-insoluble polysaccharide

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57

equilibrium

state of balance

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58

tonicity

the elastic tension of living muscles, arteries, etc

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59

triglycerides

type of fat (lipid) found in your blood

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60

phospholipids

two fatty acids, a glycerol unit and a phosphate group

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61

active site

where catalytic activity takes place

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62

Cell Theory

all biological organisms are composed of cells

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