Cell Membranes And Cell Walls: Question Preview (ID: 12386)

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The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Since other substances are blocked from coming in, this membrane is
a) perforated
b) semi-permable
c) non-conductive
d) permeable

Cells use passive and active transport to move materials across the cell membrane to keep a constant internal environment. What is this process called?
a) diffusion
b) evolution
c) homeostasis
d) respiration

If placed in a hypertonic solution, a plant cell will
a) swell
b) burst
c) shrink in size
d) remain constant in size

Which of these is a function of the cell membrane in all cells?
a) producing cellular nutrients
b) preserving cellular wastes
c) neutralizing chemicals
d) maintaining homeostais

Active transport performs which function in a cell?
a) packages proteins for export from the cell
b) distributes enzymes throughout the cytoplasm
c) moves substances against a concentration gradient
d) equalizes the concentration of water inside and outside the cell

What is the main function of the cell wall?
a) store carbohydrates for later use
b) provide rigid structure for cell
c) package proteins for export
d) carry out photosynthesis

Which transport process always involves the movement of materials from inside the cell to outside the cell?
a) phagocytosis
b) endocytosis
c) exocytosis
d) diffusion

A molecule that moves across a cell membrane without using the cell's energy tends to move
a) away from the area of equilibrium.
b) away from the area where it is less concentrated
c) away from the area where it is more concentrated
d) toward the area where it is more concentrated

Diffusion is the movement of a substance
a) only through the lipid bilayer
b) only in liquids
c) only air
d) from an area of high concentration to an area of low concentration

Molecules that are too large to moved through the cell membrane can be transported into the cell by
a) osmosis
b) diffusion
c) endocytosis
d) exocytosis

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