BIO201L LAB_V3
Lab 4 Diffusion and Osmosis
Started on Wednesday, August 31, 2022, 5:50 AM
State Finished
Completed on Wednesday, August 31,
... [Show More] 2022, 6:00 AM
Time taken 10 mins 5 secs
Grade 35.00 out of 35.00 (100%)
Question 1
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The proteins that transport water across the cell membrane are called aquifers.
Select one:
a. True
b. False
Question 2
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In a solution, substances are dissolved in a:
Select one:
a. Solvent
b. Solute
c. Mixture
d. None of the above.
Question 3
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An equitonic solution has equal solute concentrations on both sides of the permeable
membrane.
Select one:
a. True
b. False
Question 4
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Which of the following impacts the rate of diffusion into a cell?
Select one:
a. Membrane Characteristics
b. Solute Size
c. Molecular Polarityd. All of the above.
Question 5
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Solution with a lower osmotic pressure than body fluids are:
Select one:
a. Isotonic
b. Hypertonic
c. Hypotonic
d. Supersaturated
Question 6
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What is the main aquaporin that is found in the body?
Select one:
a. Aquaporin 1
b. Aquaporin 2
c. Aquaporin 3
d. Aquaporin 4
Question 7
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Identify the units used to define molarity.
Select one:
a. Grams/Liter
b. Moles/Liter
c. Grams/Mole
d. Liters/Mole
Question 8
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What is the difference between diffusion and osmosis?
Select one:
a. Osmosis states the molecules move from high to low concentration, whereas diffusion
states that molecules move from low to high concentration.
b. Diffusion does not consider semi-permeable membranes, whereas osmosis only
considers semi-permeable membranes.
c. Diffusion refers only to water molecules, while osmosis refers to any molecule.
d. Osmosis refers to water molecules, while diffusion refers to any molecule.
Question 9
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What is the relationship between tonicity and osmotic pressure?
Select one:
a. Osmotic pressure is directly correlated with tonicity.
b. Osmotic pressure is indirectly correlated with tonicity.
c. There is no relationship between osmotic pressure and tonicity.
Question 10
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Diffusion will occur if a concentration gradient exists.
Select one:
a. True
b. False [Show Less]