Review of Cell Transport Name: _______KEY____________________
Directions: Complete the concept map below to use as a study guide to help you remember the differences between passive transport and active transport. You can begin with the phrase “transport through membranes.”
Below are words you will use.
facilitated diffusion active transport osmosis exocytosis endocytosis pump
without energy simple diffusion
Osmosis
Endocytosis Pumps Fa
Simple diffusion Fac. diffusion
Exocytosis
Where on this concept map would you add Phagocytosis and Pinocytosis? Please add them where they belong.
Underneath active transport/ endocytosis
What is the difference between the two? ___
_Phagocytosis is cell eating (solid particles )Pinocytosis is cell drinking (small molecules or ions)
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MEMBRANE STRUCTURE and TRANSPORT REVIEW
Correctly and identify the name for each part of the cell membrane.
Letter | Name/Color | Letter | Name/Color |
A_ | Phospholipid bilayer | H_ | Peripheral protein |
B_ | Integral protein | I_ | Cholesterol |
F_ | Fatty acid tails | C_ | Glycoprotein |
G_ | Phosphate heads | ___E__ | Glycolipids |
Match the cell membrane structure or its function with the correct letter from the cell membrane diagram.
Letter | Structure/Function | Letter | Structure/Function |
G_ | Attracts water | ___F__ | Repels water |
I___ | Helps maintain flexibility of membrane | A_ | Make up the bilayer |
CE__ | Involved in cell-to-cell recognition | B_ | Help transport certain materials across the cell membrane |
Osmosis and Tonicity
Use arrows to show the direction of water movement into or out of each cell.
OUT NO IN
Match the
Match each description with the osmotic condition:
A. Isotonic | C___ solution with a lower solute concentration |
A_ solution in which the solute concentration is the same | |
B. Hypertonic | B_ solution with a higher solute concentration |
C. Hypotonic | c_ solution with a high water concentration |
Complete the table by checking the correct column for each statement:
Statement | Isotonic solution | Hypotonic solution | Hypertonic solution |
Causes a cell to swell | x | ||
Doesn’t change the shape of a cell | x | ||
Causes osmosis | x | x | |
Causes a cell to shrink | x |
Transport Requiring Energy
What type of transport is represented by the picture? __Active/ Pump
What energy is being used? ___ATP energy
In which direction (concentration gradient), is the movement occurring?
Low to high
Against the concentration gradient
Match the term with its correct description:
energy
active transport
facilitated diffusion
channel protein
carrier protein
passive transport
D_ Transport protein that provides a tube-like opening in the plasma membrane through which particles can diffuse
A_ Is used during active transport but not passive transport
F_ Particle movement from an area of higher concentration to an area of lower concentration
C_ A form of passive transport that uses transport proteins
B_ Particle movement from an area of lower concentration to an area of higher concentration
E_ Transport protein that changes shape when a particle binds with it
Write the letter of the definition next to the correct vocabulary word.
H_ lipid bilayer E_ selectively permeable D_ passive transport ___B_ diffusion G_ facilitated diffusion A_ osmosis C___ aquaporin F_ active transport | A) movement of water through a selectively permeable membrane B) process by which particles move randomly from high to low concentration until equilibrium is reached C) protein channel in the cell membrane that allows water to pass through D) type of cellular transport that does not use cellular energy E) some substances can pass through and others cannot F) type of cellular transport requiring cellular energy G) process through which molecules pass through special protein channels in the cell membrane without using energy H) double-layered sheet that gives the cell membrane a strong, flexible barrier |