Cell Membrane and Cell Transport

Flashcards covering key concepts related to the cell membrane and its transport mechanisms.

What does it mean for the cell membrane to be semipermeable?

It means the cell membrane has control over what enters and leaves the cell.

What is the function of the cell membrane?

To allow good materials in such as nutrients, while keeping toxic materials out.

What is the structure of the cell membrane according to the fluid mosaic model?

The cell membrane has a phospholipid bilayer with different parts that allow for movement.

What are the four important parts of the cell membrane?

1. Phospholipids 2. Proteins 3. Cholesterol 4. Carbohydrates

What are the two types of proteins found in the cell membrane?

1. Carrier proteins 2. Channel proteins

What role does cholesterol play in the cell membrane?

Cholesterol maintains fluidity in cold temperatures and structure in warm temperatures.

What is the role of carbohydrates in the cell membrane?

Carbohydrates line the outside of the cell and play a role in cell recognition, important in immune response.