B.1.1 Introduction To Biological Molecules

Question 1

What are the three types of bonding between atoms?

Answer 1

Covalent, Ionic and Hydrogen

Question 2

What is Covalent Bonding?

Answer 2

When atoms share a pair of electrons in their outer shell

Question 3

What is Ionic Bonding?

Answer 3

Ions with different charges attract one another. The electrostatic attraction is known as an ionic bond

Question 4

What is hydrogen bonding?

Answer 4

The electrons within a molecule are not evenly distributed but tend to spend more time at one position.

Question 5

What does polarised mean?

Answer 5

When a molecule has an uneven distribute of charge.

Question 6

What are polymers?

Answer 6

Long chains of monomer sub-units

Question 7

What is the formation of polymers called

Answer 7

Polymerisation

Question 8

What are reactions that produce water called?

Answer 8

Condensation reactions

Question 9

How can polymers be broken down?

Answer 9

Hydrolysis

Question 10

What is metabolism?

Answer 10

All the chemical processes that take place in living organisms

Question 11

What is a molar solution?

Answer 11

A solution that contains one mole of solute in each litre of solution