STAAR Biology Category 1 Review

Front

What is the main difference between Prokaryotes and Eukaryotes?

Back

Eukaryotes have a nucleus, while Prokaryotes do not.

Front

What is Passive Transport?

Back

Passive Transport is the movement of substances across a cell membrane without the use of energy.

Front

What is Facilitated Diffusion?

Back

Facilitated Diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane.

Front

What happens to a cell when water moves out of it?

Back

The cell will shrink.

Front

What is the role of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, maintaining homeostasis.

Front

Define Osmosis.

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is the difference between Active Transport and Passive Transport?

Back

Active Transport requires energy to move substances against their concentration gradient, while Passive Transport does not.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solution.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space.

Front

What is the function of protein channels in the cell membrane?

Back

Protein channels facilitate the transport of specific substances across the cell membrane.