Biology Review - Cell Structure and Function

Front

What is the primary role of aquaporins?

Back

To transport water across the membrane.

Front

During osmosis, water always moves from an area of ____ solute concentration to ____ solute concentration.

Back

low, high

Front

What is diffusion?

Back

A passive process where molecules move from a region of higher to lower concentration.

Front

What is the difference between passive and active transport?

Back

Active transport involves moving solutes against the concentration gradient using ATP.

Front

What role do proteins in the cell membrane play?

Back

They allow the cell to interact with its environment (surrounding cells).

Front

Define osmosis.

Back

The movement of water across a selectively permeable membrane from an area of low solute concentration to high solute concentration.

Front

What is the function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is the role of mitochondria in a cell?

Back

To produce energy (ATP) through cellular respiration.

Front

What is the function of ribosomes?

Back

To synthesize proteins by translating messenger RNA.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have them.