Cell Transport & Homeostasis

Front

What structure functions in determining what is allowed into and out of the cell?

Back

Phospholipid bi-layer

Front

What does the term 'synthesis' mean?

Back

To make

Front

What is the movement of particles across a membrane from an area of lower concentration to an area of higher concentration called?

Back

Active Transport

Front

What is it called when the cell membrane allows certain substances to pass through but not others?

Back

Semi-Permeable

Front

What type of transport occurs when molecules move across a membrane without energy input?

Back

Passive Transport

Front

What is the process called where water moves across a semi-permeable membrane?

Back

Osmosis

Front

What is the term for the movement of molecules from an area of higher concentration to an area of lower concentration?

Back

Diffusion

Front

What is the role of the cell membrane in maintaining homeostasis?

Back

It regulates the movement of substances in and out of the cell.

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a membrane via specific transmembrane proteins.

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.