Metabolism

Question 1

The two key processes to examine in metabolism.

Answer 1

• catabolism

- anabolism

Question 2

What is catabolism?

Answer 2

Intracellular process of degrading a compound into smaller and simpler products.
e.g. glucose –> CO2 + H20
Catabolism also produces energy
For example, respiration is a catabolic reaction

Question 3

What is anabolism?

Answer 3

This involves the synthesis of more complex
e.g. glucose –> glycogen
Anabolism requires energy

Question 4

What do living cells need energy for?

Answer 4

Biosynthesis, transport of nutrients, mobility, maintenance

Question 5

What is photosynthesis?

Answer 5

CO2 + H20 + light –> CH20 + O2

Question 6

What are the three types of metabolic reactions?

Answer 6

1. Degradation of nutrients
2. Biosynthesis of small molecules
3. Biosynthesis of large molecules

Question 7

What is a primary energy source in cells?

Answer 7

Adenosine Triphosphate (ATP)

Question 8

How is energy released from ATP?

Answer 8

The breaking of a phosphate bond

ATP –> ADP + Pi

Question 9

What other compounds store energy?

Answer 9

Analog compounds of ATP including guanosine, uridine, cytidine triphosphate
Not as prevalent as ATP