Cell Membrane: Structure and Function

Front

What is the main reason cells are small?

Back

Cells are small because it allows a faster rate of chemical exchange.

Front

What is the primary component of the cell membrane?

Back

Lipids

Front

What type of molecules are phospholipid heads?

Back

Hydrophilic

Front

What structures form the channels and pumps in the phospholipid bilayer?

Back

Proteins

Front

What type of cellular transport does not require energy?

Back

Passive Transport

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic head and two hydrophobic tails.

Front

What role do proteins play in the cell membrane?

Back

Proteins form channels and pumps that facilitate transport across the membrane.

Front

What is the function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is a characteristic of hydrophobic molecules?

Back

Hydrophobic molecules do not interact well with water.