Section 7.3 + 7.4 Review

Front

Another term for equilibrium is...

Back

Homeostasis

Front

Active transport requires ______, moves materials from __________________, and goes _______ the concentration gradient.

Back

ATP, low to high, against

Front

What is the name of the process in which molecules move from an area of high concentration to an area of low concentration across a selectively permeable membrane?

Back

Diffusion

Front

What is the difference between active and passive transport?

Back

Active uses ATP (energy) and passive does not need energy.

Front

A cell will _____________________ in a hypertonic solution.

Back

shrink

Front

Define Homeostasis.

Back

The ability of a cell or organism to maintain a stable internal environment despite changes in external conditions.

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

The diffusion of water molecules across a selectively permeable membrane.

Front

What is the role of ATP in active transport?

Back

ATP provides the energy required to move substances against their concentration gradient.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will swell and may burst due to water entering the cell.