Cell Membrane and Cell Transport

Front

What is the role of ATP (Adenosine Triphosphate) in active transport?

Back

ATP is the energy molecule that provides the energy required for active transport processes.

Front

What happens to a wilted flower's cells when water moves out of them?

Back

The flower's cells get smaller.

Front

What occurs when more water moves into a cell than out of it?

Back

The cell will become larger.

Front

What type of macromolecule primarily makes up the cell membrane?

Back

Phospholipid.

Front

What does it indicate if more water has moved into red blood cells than out?

Back

It indicates that the cells are gaining water and may swell.

Front

Define passive transport.

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, moving from high to low concentration.

Front

What is osmosis?

Back

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

Front

What is the difference between diffusion and facilitated diffusion?

Back

Diffusion is the movement of molecules from high to low concentration, while facilitated diffusion requires specific transport proteins to help move molecules across the membrane.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others.

Front

What is the function of transport proteins in the cell membrane?

Back

Transport proteins help move substances across the cell membrane, either passively or actively.