The Importance of Respiration

Question 0

Describe the structure of ATP.

Answer 0

ATP is a phosphorylated nucleotide.

• Each molecule is made up of adenosine and 3 phosphate molecules.
• Can be hydrolysed to ADP + Pi.
• Provides an immediate source of energy for biological processes in cells (universal energy currency).
• Energy released from respiration is stored in the bonds

DIAGRAM

Question 1

Why do living organisms need to respire?

Answer 1

• For metabolic processes:

 - Active Transport 
 - Replication of DNA
 - Synthesis of organelles before cell divides 
 - Movement