Question

1) which of the following occurs when a cell is placed in an isotonic solution a. water moves by osmosis out of the cell b. the cell swells c. the cell shrinks d. none of the above 2) How does osmosis different from simple diffusion? a. simple diffusion utilizes energy in the form of a solute concentration gradient, osmosis utilizes energy in form of ATP b. osmosis involves the movement of water, simple diffusion involves the movement of solutes c. simple diffusion moves solutes with their concentration gradient, osmosis moves solutes against their concentration gradient d. osmosis is a form of active transport, simple diffusion is a form of passive transport 3) During the relative refractory period of a neuron, a second action potential is less likely, but not impossible, because: a. the threshold value has increased b. the amount of depolarization required to reach threshold has increased c. the threshold value has decreased d. the amount of depolarization required to reach threshold has decreased

          1) which of the following occurs when a cell is placed in an
isotonic solution
a. water moves by osmosis out of the cell
b. the cell swells
c. the cell shrinks
d. none of the above
2) How does osmosis different from simple diffusion?
a. simple diffusion utilizes energy in the form of a solute
concentration gradient, osmosis utilizes energy in form of ATP
b. osmosis involves the movement of water, simple diffusion
involves the movement of solutes
c. simple diffusion moves solutes with their concentration
gradient, osmosis moves solutes against their concentration
gradient
d. osmosis is a form of active transport, simple diffusion is a
form of passive transport
3) During the relative refractory period of a neuron, a second
action potential is less likely, but not impossible, because:
a. the threshold value has increased
b. the amount of depolarization required to reach threshold has
increased
c. the threshold value has decreased
d. the amount of depolarization required to reach threshold has
decreased

Added by Brian M.

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