Cells Unit Final Review

Front

What is osmosis?

Back

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

Front

Define diffusion.

Back

The movement of molecules from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is the function of the cell membrane?

Back

To protect the cell and control the movement of substances in and out of the cell.

Front

What are organelles?

Back

Specialized structures within a cell that perform specific functions.

Front

What is the role of mitochondria?

Back

To produce energy (ATP) through cellular respiration.

Front

Define active transport.

Back

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is a cell?

Back

The basic unit of life that can perform all life processes.

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 do not have a nucleus or membrane-bound organelles, while eukaryotic cells do.

Front

What is homeostasis?

Back

The process by which a cell or organism maintains a stable internal environment.