Module 5: The Structure And Function Of Plasma Membrane

Question 1

What is triacylglyercol?

Answer 1

A type of storage tissue consisting of 3 joined fatty acids covalently bonded to glycerol.

Question 2

What does amphipathic mean?

Answer 2

Having both hydrophobic (usually non-polar) and hydrophillic (usually polar) parts.

Question 3

What are the 2 parts of phospholipids?

Answer 3

Polar hydrophilic heads (containing phosphate) and non-polar hydrophobic tails (either straight or bent)

Question 4

What is a solute?

Answer 4

The substance dissolved in the liquid.

Question 5

What is a solvent?

Answer 5

The dissolving liquid.
Water is the universal solvent.

Question 6

What is osmosis?

Answer 6

The passive diffusion of water across a membrane from an area of high concentration to an area of low concentration until solute levels reach equilibrium.

Question 7

What is a hypertonic solution?

Answer 7

A solution with a high solute concentration and stronger ability to pull water.

Question 8

What is a hypotonic solution?

Answer 8

A solution with a low solute concentration and weak ability to pull water.

Question 9

What is osmoregulation?

Answer 9

The regulation of salt and water in the body; the regulation of osmosis.

Question 10

What are the 2 types of transporter proteins?

Answer 10

1. Channel Proteins.
2. Carrier Proteins.

Question 11

What is the electrochemical gradient?

Answer 11

The sum of both the electrical gradient and the chemical gradient.