Cell Membrane + Transport

Front

What does it mean to be semi-permeable?

Back

Allows some substances to pass through but not all.

Front

What organelle helps maintain homeostasis by controlling what substances may enter or leave cells?

Back

Cell membrane.

Front

What is the primary function of the cell membrane?

Back

Controls what enters and leaves the cell.

Front

What type of transport requires energy to move substances against their concentration gradient?

Back

Active transport.

Front

What is the process called when large particles move into the cell using ATP?

Back

Endocytosis.

Front

What is the process of water movement from high to low concentration called?

Back

Osmosis.

Front

What is passive transport?

Back

Movement of substances across the cell membrane without the use of energy.

Front

What is diffusion?

Back

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

Front

What is exocytosis?

Back

The process of large particles exiting the cell using ATP.

Front

What are the two layers that make up the cell membrane primarily composed of?

Back

Lipids (fats).