Cell Transport Through The Membrane Question Preview (ID: 31957)
Transport Through The Cell Membrane: Diffusion, Osmosis, Tonicity, And More.
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When molecules are moving from low to high concentration, this is ____________ .
a) diffusion
b) osmosis
c) facilitated diffusion
d) active transport
Passive transport requires no:
a) energy/ATP
b) concentration gradient
c) water
d) none of these
When molecules move from areas of high concentration to areas of low concentration it is called? This is also called down the concentration gradient.
a) active transport
b) pinocytosis
c) diffusion
d) none of these
What is the term used for the cell membrane since it lets only certain things through it?
a) semipermeable
b) selectively permeable
c) both semipermeable and selectively permeable are correct
d) impermeable
Which of the following statements best describes the lipid bilayer of a cell membrane?
a) The lipid bilayer produces ATP for cellular energy.
b) The polar heads interact with the inside and outside of a cell while the tails are in the middle.
c) The tails interact with the inside and outside of a cell while the polar heads are in the middle.
d) The lipid bilayer is composed mostly of polysaccharides and proteins.
In the iodine and the starch experiment, which molecules were able to pass through the dialysis tubing and why?
a) The starch, because the molecules are smaller.
b) Iodine, because the molecules are smaller.
c) Both iodine and starch moved because they are the same size.
d) None of these are correct.
In a hypertonic solution, which direction will the water will move?
a) out of the cell
b) in the cell
c) there will be no net movement of water
d) none of these are correct
If there are more water molecules in the cell than outside, what type of solution exists outside the cell.
a) isotonic
b) hypertonic
c) hypotonic
d) none of these
When a cell takes in a large, solid particle, this is called ________ and it is known as “cell eating.”
a) exocytosis
b) osmosis
c) pinocytosis
d) phagocytosis
Two types of passive transport are:
a) diffusion and osmosis
b) exocytosis and endocytosis
c) osmosis and endocytosis
d) osmosis and pinocytosis
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