H Homeostasis in Cells Review

Front

What is diffusion?

Back

Diffusion is the process when molecules move from a high concentration to a low concentration.

Front

In an isotonic solution, which way will the water flow?

Back

In an isotonic solution, water will flow both ways at equal rates.

Front

What forms the two layers of the cell membrane?

Back

Phospholipids form the two layers of the cell membrane.

Front

Where will the water go in a hypertonic solution?

Back

In a hypertonic solution, water will go out of the cell.

Front

What is a carrier or transport protein?

Back

A carrier or transport protein is a protein that helps move substances across a cell membrane.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from a region of low solute concentration to a region of high solute concentration.

Front

What is the role of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the cell membrane's fluidity and structure.

Front

What is a selectively permeable membrane?

Back

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

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water enters the cell, causing it to swell and potentially burst.

Front

What is the function of proteins in the cell membrane?

Back

Proteins in the cell membrane assist in transport, act as receptors, and provide structural support.