Introduction To Biological Molecules

Question 1

What is covalent bonding?

Answer 1

Atoms share a pair of electrons in their outer shell. Outer shell of both atoms are filled. Molecule is formed.

Question 2

What is ionic bonding?

Answer 2

Ions with opposite charges attract each other. A positive and a negative form an ionic bond.

Question 3

Which is stronger, a covalent bond or an ionic bond?

Answer 3

A covalent bond

Question 4

What is hydrogen bonding?

Answer 4

The electrons within a molecule are not evenly distributed. A molecule with an uneven distribution is polarised. A weak electrostatic bond is formed.

Question 5

What is the name of long chains of monomer sub-units?

Answer 5

Polymers

Question 6

By what process are polymers formed?

Answer 6

Polymerisation

Question 7

What are condensation reactions?

Answer 7

Reactions that produce water

Question 8

What are hydrolysis reactions?

Answer 8

Water splitting.

Question 9

What is the metabolism?

Answer 9

All chemical processes that take place in living organisms

Question 10

What is a molar solution?

Answer 10

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