Cell Membrane Structure and Function

Front

What is the primary function of the cell membrane?

Back

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

Front

What are the main components of the cell membrane?

Back

The main components are phospholipids, proteins, carbohydrates, and cholesterol.

Front

Define phospholipid.

Back

A phospholipid is a molecule that makes 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 assist in transport, act as receptors, and provide structural support.

Front

What is the function of carbohydrates in the cell membrane?

Back

Carbohydrates are involved in cell recognition and communication.

Front

What is cholesterol's role in the cell membrane?

Back

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

Front

What is a glycoprotein?

Back

A glycoprotein is a protein that has carbohydrate chains attached, playing a key role in cell recognition.

Front

What is a glycolipid?

Back

A glycolipid is a lipid with a carbohydrate attached, contributing to cell recognition and signaling.

Front

How do cell membranes maintain homeostasis?

Back

Cell membranes maintain homeostasis by controlling the movement of substances in and out of the cell.

Front

What is selective permeability?

Back

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