BIO 1 - Cell Membrane And Function: Question Preview (ID: 26506)

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An example of active transport is
a) osmosis.
b) facilitated diffusion.
c) simple diffusion.
d) pinocytosis.

If a solution outside a cell has a higher concentration of solute than inside the cell, it is said to be
a) isotonic.
b) hypotonic.
c) hypertonic.
d) in equilibrium.

Facilitated diffusion requires energy.
a) true
b) false

Facilitated diffusion involves the movement of particles through
a) the lipid bilayer.
b) protein channels.
c) with the movement of water.
d) attached to carrier molecules.

The movement of water across a selectively permeable membrane is called
a) simple diffusion
b) facilitated diffusion
c) osmosis
d) hydrosis

The process of moving particles across a selectively permeable membrane from areas of high concentration to low concentration is
a) active transport.
b) phagocytosis.
c) diffusion.
d) exocytosis.

The function of the cell membrane is to
a) provide support to the cell.
b) provide protection to the cell.
c) regulate what enters and leaves the cell.
d) all of the above.

The concentration of a solution is the
a) volume of its solute in a given volume of solution.
b) mass of its solute in a given mass of solvent.
c) mass of its solute in a given volume of solution.
d) mass of its solvent in a given volume of solute.

Cell membranes are constructed mainly of
a) lipid bilayers
b) protein pumps
c) carbohydrate gates
d) free-moving proteins

If a cell swells when placed in a solution, then relative to the cell the solution is
a) isotonic.
b) hypotonic.
c) hypertonic.
d) at equilibrium.

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