Cell Homeostasis Answers

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Which statement describes the ability of the cell membrane to allow various substance to move through it?

A
The cell membrane is selectively permeable.
B
The cell membrane is composed of lipids and phosphates.
C
The cell membrane is both hydrophilic and hydrophobic.
D
The cell membrane is a bilayer structure.
2
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In which kind of solution is the concentration of solutes the same inside and outside of the cell?

A
isotonic
B
hypertonic
C
hypotonic
D
concentrated
3

Which process is characterized by the movement of particles from an area of high concentration to an area of low concentration across the plasma membrane without the use of energy?

A
hypertonic transport
B
active transport
C
passive transport
D
dynamic equilibrium
4

For diffusion to occur, which condition must be met?

A
A concentration gradient must exist.
B
A hypotonic external environment must exist.
C
A hypertonic external environment must exist.
D
Dynamic equilibrium must exist.
5

Which solution would most likely cause a plant placed in it to become firmer and more rigid?

A
hypertonic
B
hypotonic
C
isotonic
D
osmotic

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Cell Homeostasis Answers — 26-27 RPA- Biology 12…