Cell Membrane

Front

What are glycolipids and glycoproteins?

Back

Glycolipids and glycoproteins are molecules found in the cell membrane that have glucose attached to them, playing key roles in cell recognition and signaling.

Front

What happens to water potential when solute concentration increases?

Back

The water potential decreases as the concentration of solutes in a solution increases.

Front

How do Legionella bacteria reproduce?

Back

Legionella bacteria must reproduce inside the host cell, similar to viruses.

Front

Describe the movement of water in relation to solute concentration.

Back

Water moves from areas of lower solute concentration to areas of higher solute concentration.

Front

What does it indicate if a carrot gains mass in a .6M solution?

Back

It indicates that the molarity of the carrot is greater than .6M, as water moves into the carrot.

Front

Define the cell membrane.

Back

The cell membrane is a biological barrier that separates the interior of a cell from its external environment, composed of a phospholipid bilayer with embedded proteins.

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What role do proteins play in the cell membrane?

Back

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

Front

What is the function of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the fluidity of the cell membrane, making it less permeable to very small water-soluble molecules.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others, maintaining homeostasis within the cell.