1.1 introduction to biological molecules

Question 1

How to atoms form covalent bonds to form molecules?

Answer 1

Atoms share a pair of electrons in their outer shells. both atoms have full outer shells and a stable molecule is formed.

Question 2

How to atoms form ionic bonds to form molecules?

Answer 2

ions with opposite charges are attracted to eachother. this electrostatic attraction is known as an ionic bond. weaker than covalent bonds.

Question 3

how to atoms form hydrogen bonds to form a molecule?

Answer 3

molecules often have an uneven distribution of charge (polar molecule). the negative region of one polar molecule is attracted to the positive region of another polar molecule and a weak electrostatic bond is formed.

Question 4

What is condensation polymerisation?

Answer 4

A reaction joining together individual monomers to form a polymer and water.

Question 5

what is hydrolysis?

Answer 5

Breaking down a polymer into monomers by the addition of water.

Question 6

what is metabolism?

Answer 6

All the chemical processes that take place in a living organism.