Cell Membrane And Transport

Front

What are lipid tails in the cell membrane?

Back

Lipid tails are nonpolar, meaning they do not interact with water and help form the hydrophobic core of the cell membrane.

Front

Is the cell membrane solid and rigid?

Back

False. The cell membrane is fluid and flexible, allowing for movement and interaction of its components.

Front

Which components are part of the cell membrane?

Back

The cell membrane is primarily made of lipids, carbohydrates, and proteins. Nucleic acids are NOT part of the cell membrane.

Front

What is the direction of molecule movement through a semi-permeable membrane?

Back

Molecules move from an area of higher concentration to an area of lower concentration, such as from the A side to the B side.

Front

What is the primary composition of the cell membrane?

Back

Most of the cell membrane is made of lipids, specifically phospholipids.

Front

What is the function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and structural support.

Front

What are phospholipids?

Back

Phospholipids are molecules that make up the cell membrane, consisting of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.

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 are carbohydrates' function in the cell membrane?

Back

Carbohydrates on the cell membrane serve as recognition sites for cell signaling and communication.

Front

What is selective permeability?

Back

Selective permeability is the property of the cell membrane that allows certain substances to pass while blocking others.