NC EOC Review: Homeostasis & Cell Transport

Front

What is a pH buffer?

Back

Substances produced by the cell to resist changes in pH.

Front

What term means a state of stability or equilibrium?

Back

Homeostasis.

Front

By what adaptive structure does a paramecium regulate its water intake?

Back

Contractile vacuole.

Front

What pH values are considered acidic?

Back

0-6.

Front

In beaker C, water will _______ the cell.

Back

Exit.

Front

What is homeostasis?

Back

The process by which living organisms maintain a stable internal environment.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the role of the cell membrane?

Back

To regulate what enters and exits the cell.

Front

What is the function of ribosomes?

Back

To synthesize proteins.