Chapter 3.3 Cell Transport and Homeostasis

Front

What is the process called when substances move from an area of low concentration to an area of high concentration using energy?

Back

Active Transport

Front

What type of transport does not require energy to move substances across the cell membrane?

Back

Passive Transport

Front

What is the primary energy source used in active transport?

Back

ATP (Adenosine Triphosphate)

Front

What is the main difference between active transport and passive transport?

Back

Active transport requires energy, while passive transport does not.

Front

What is the term for the movement of water across a selectively permeable membrane?

Back

Osmosis

Front

What is the role of the cell membrane in transport processes?

Back

The cell membrane regulates what enters and exits the cell.

Front

What is facilitated diffusion?

Back

A type of passive transport that uses transport proteins to move substances across the membrane.

Front

What is the significance of concentration gradients in transport processes?

Back

Concentration gradients drive the movement of substances in passive transport.

Front

What is an example of a substance that typically moves via active transport?

Back

Ions such as sodium (Na+) or potassium (K+).

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and may shrink.