Topic 5 - A : Photosynthesis and Respiration

Question 1

Photosynthesis equation

Answer 1

6CO2 + 6H2O = C6H12O6 + 6O2

Question 2

Aerobic respiration

Answer 2

C6H12O6 + 6O2 = 6CO2 + 6H2O

Question 3

Anaerobic respiration (animal)

Answer 3

C6H12O6 = 6CO2 + 6H2O + lactic acid

Question 4

Anaerobic respiration (plant)

Answer 4

C6H12O6 = 6CO2 + 6H2O + Ethanol

Question 5

Draw ATP

Answer 5

1 ribose
3 phosphate
1 adenine

Question 6

Draw ADP

Answer 6

1 ribose
2 phosphate
1 adenine

Question 7

Products of Glycolysis

Answer 7

2 NADH
2 Pyruvate
2 ATP net gain (4 in total)

Takes place in cytoplasm

Question 8

Products of Link Reaction

Answer 8

2 NADH
1 CO2

Takes place in mitochondria

Question 9

Products of Krebs Cycle

Answer 9

1 Co-enzyme
2 CO2
3 NADH
1 ATP
1 FADH2

Happens in Matrix of mitochondria

Question 10

Describe oxidative phosphorylation

Answer 10

NADH and FADH2 release hydrogen atoms which then split into protons and electrons
Electrons move through electron transport train
Energy is used from this to pump protons into intermembrane space
Conc. of protons in intermembrane space > mitochondrial matrix
Protons move back into mitochondria matrix via ATP synthase
This movement encourages the synthesis of ATP