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Cellular Transport Review
Test Description: Review forms of cell transport
Instructions: Answer all questions to get your test result.
1) What term refers to the water-fearing region of a phospholipid?
A
Hypertonic
B
Hypotonic
C
Hydrophobic
D
Hydrophilic
2) The process of maintaining constant internal conditions despite environmental changes is referred to as which of the following?
A
Plasmolysis
B
Equilibrium
C
Isotonic balance
D
Homeostasis
3) What process allows vesicles to merge with the cell membrane and release their contents outside of the cell?
A
diffusion
B
osmosis
C
exocytosis
D
endocytosis
4) How do large and charged molecules move across the cell membrane?
A
through plasmolysis
B
through simple diffusion
C
through osmosis
D
through facilitated diffusion
5) Which type of transport requires the use of cellular energy (ATP)?
A
passive
B
active
6) What type of transport moves molecules down the concentration gradient from areas of high concentration to areas of low concentration?
A
active
B
passive
7) Which term refers to a membrane allowing some materials to pass through it while blocking the passage of other materials?
A
Hypotonic
B
Homeostatic
C
Impermeable
D
Semipermeable
8) Which term refers to the water-loving region of a phospholipid?
A
Hydrophobic
B
Hydrophilic
C
Hypotonic
D
Hypertonic
9) What are the two main components of the cell membrane?
A
Phospholipids and Proteins
B
Phospholipids and Carbohydrates
C
Phospholipids and Cholesterol
D
Phospholipids and Fatty Acids
10) What type of transport requires NO energy (ATP) expenditure?
A
Active
B
Passive
11) Which term refers to the movement of water across the cell membrane?
A
diffusion
B
facilitated diffusion
C
pinocytosis
D
osmosis
12) Which term refers to the process in which large particles are engulf and brought into the cell?
A
endocytosis
B
exocytosis
C
osmosis
D
ion pump
13) What do facilitated diffusion and ion pumps have in common?
A
They both use transport proteins to move materials into and out of the cell.
B
They both require energy.
C
They both move molecules directly across the phospholipid bilayer.
D
Neither require energy.
14) Why do the fatty acid tails of the phospholipids align in the center of the bilayer?
A
They are hydrophobic and want to contact water.
B
They are hydrophilic and want to avoid contact with water.
C
They are hydrophilic and want to contact water.
D
They are hydrophobic and want to avoid contact with water.
15) What type of transport moves molecules against the concentration gradient from areas of low concentration to areas of high concentration?
A
Passive
B
Active
16) What type of solution causes a cell to shrink?
A
Hypertonic
B
Isotonic
C
Hypotonic
17) What type of solution has an equal concentration of solution molecules on both sides of the membrane?
A
Isotonic
B
Hypertonic
C
Hypotonic
18) What type of molecules easily diffuse directly across the phospholipid bilayer?
A
Large, charged molecules and ions
B
Small, non-polar molecules
19) Which of the following is NOT an example of passive transport
A
Exocytosis
B
Diffusion
C
Osmosis
D
Facilitated Diffusion
20) If there is a higher concentration of water outside of a cell than inside of a cell, water will move ______________ the cell and the cell will ________________.
A
out of; shrink
B
into; swell
C
into; shrink
D
out of; swell
*select an answer for all questions
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