Cell membrane structure

Front

What controls membrane fluidity and stability?

Back

Cholesterol

Front

What is the arrangement of phospholipids in the cell membrane?

Back

Phospholipids arrange themselves in a bilayer with hydrophilic heads facing outward and hydrophobic tails facing inward.

Front

Which of the following is not a structural part of the cell membrane: phospholipids, cholesterol, proteins, or DNA?

Back

DNA

Front

What term describes the relatively constant internal physical conditions of an organism?

Back

Homeostasis

Front

What forms the channels and pumps in the phospholipid bilayer?

Back

Proteins

Front

What is the basic structure of the cell membrane?

Back

The cell membrane is primarily composed of a phospholipid bilayer with embedded proteins.

Front

What is the function of proteins in the cell membrane?

Back

Proteins facilitate transport, act as receptors, and provide structural support.

Front

What are the hydrophilic and hydrophobic parts of phospholipids?

Back

The hydrophilic part is the phosphate head, and the hydrophobic part is the fatty acid tails.

Front

What role do carbohydrates play in the cell membrane?

Back

Carbohydrates are involved in cell recognition and signaling.

Front

What is selective permeability in the context of the cell membrane?

Back

Selective permeability refers to the ability of the cell membrane to allow certain substances to pass while blocking others.