Cell Membrane And Transport (no cell communication)

Front

What is the plasma membrane?

Back

The plasma membrane is a selectively permeable barrier that surrounds the cell, controlling the movement of substances in and out.

Front

What happens to a cell in a hypertonic solution?

Back

A cell will shrink in a hypertonic solution due to the loss of water.

Front

What type of transport is endocytosis?

Back

Endocytosis is a form of active transport that involves the engulfing of materials into the cell.

Front

Is the cell membrane solid and rigid?

Back

False, the cell membrane is fluid and flexible, allowing for movement and change.

Front

What role do glycolipids play in the cell membrane?

Back

Glycolipids function as recognition sites for interactions between cells.

Front

What does selectively permeable mean?

Back

Selectively permeable means that the membrane allows certain substances to pass while blocking others.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the membrane.

Front

What is osmosis?

Back

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

Front

What is the function of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the fluidity of the cell membrane.