Respiration - Unit 1

Question 1

What is respiration?

Answer 1

A series of enzyme controlled reactions which release chemical energy which is stored in glucose.

Question 2

What does ATP do

Answer 2

Transfers energy.

Question 3

What cellular activities is ATP involved in ?

Answer 3

-muscle contractions
-mitosis
-protein synthesis
-transmission of nerve impulses

Question 4

What are the two types of fermentation?

Answer 4

Aerobic respiration - involves oxygen
Fermentation - occurs in the absence of oxygen.

Question 5

Where does aerobic respiration occur?

Answer 5

in the mitochondria

Question 6

What is the rule for of requirements of mitochondria?

Answer 6

greater requirement for energy, greater requirement for mitochondria, eg sperm use lots.

Question 7

Stage one of respiration
-What types of cell?
-Where in the cell?
-requirement of oxygen ?

Answer 7

• all types of cells
  -in the cytoplasm
  -no oxygen

Question 8

What happens in stage one of respiration?

Answer 8

Glucose breaks down into 2 molecules of pyruvate. 2 ATP are produced.