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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
Hydrophobic
B
Hypotonic
C
Hydrophilic
D
Hypertonic
2) The process of maintaining constant internal conditions despite environmental changes is referred to as which of the following?
A
Equilibrium
B
Homeostasis
C
Plasmolysis
D
Isotonic balance
3) What process allows vesicles to merge with the cell membrane and release their contents outside of the cell?
A
diffusion
B
osmosis
C
endocytosis
D
exocytosis
4) How do large and charged molecules move across the cell membrane?
A
through facilitated diffusion
B
through osmosis
C
through simple diffusion
D
through plasmolysis
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
Semipermeable
B
Impermeable
C
Homeostatic
D
Hypotonic
8) Which term refers to the water-loving region of a phospholipid?
A
Hypotonic
B
Hydrophilic
C
Hypertonic
D
Hydrophobic
9) What are the two main components of the cell membrane?
A
Phospholipids and Cholesterol
B
Phospholipids and Carbohydrates
C
Phospholipids and Proteins
D
Phospholipids and Fatty Acids
10) What type of transport requires NO energy (ATP) expenditure?
A
Passive
B
Active
11) Which term refers to the movement of water across the cell membrane?
A
pinocytosis
B
diffusion
C
osmosis
D
facilitated diffusion
12) Which term refers to the process in which large particles are engulf and brought into the cell?
A
endocytosis
B
ion pump
C
osmosis
D
exocytosis
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
Neither require energy.
C
They both require energy.
D
They both move molecules directly across the phospholipid bilayer.
14) Why do the fatty acid tails of the phospholipids align in the center of the bilayer?
A
They are hydrophilic and want to avoid contact with water.
B
They are hydrophobic and want to contact water.
C
They are hydrophobic and want to avoid contact with water.
D
They are hydrophilic and want to contact water.
15) What type of transport moves molecules against the concentration gradient from areas of low concentration to areas of high concentration?
A
Active
B
Passive
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
Osmosis
B
Exocytosis
C
Diffusion
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
out of; swell
D
into; shrink
*select an answer for all questions
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