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Which reason best explains why the cell membrane helps the cell maintain homeostasis?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
Which solution would most likely cause a plant placed in it to become firmer and more rigid?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
Which homeostatic process is characterized by the diffusion of water molecules?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
Which motion of particles across a membrane requires energy?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
Which movement of particles would be most affected by a disorder that causes damage to carrier proteins?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
Which best describes dynamic equilibrium?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
Which homeostatic process moves particles against a concentration gradient?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
For diffusion to occur, which condition must be met?
active transport
It pumps water out of the cell.
osmosis
from low concentration to high concentration
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient must exist.
active transport
The cell membrane is selectively permeable.
Check it!