2.8-2.9

Question 1

What is ATP formed from?

Answer 1

ADP + phosphate ion

Question 2

What happens in glycolysis?

Answer 2

• no oxygen needed
• in cytoplasm
• glucose ( 6 carbon) split to 2 3 carbon molecules, which are converted to pyruvate ions
• atp produced

Question 3

What happens in anaerobic respiration Im muscle tissue?

Answer 3

Pyruvate—-> lactate and a small amount of ATP

Question 4

What happens in fermentation?

Answer 4

Yeast respite anaerobically. Glucose —-> ethanol + CO2 and ATP

Question 5

What happens in aerobic respiration?

Answer 5

In the presence of oxygen, sugar is completely oxidised in the mitochondria.
Glucose —-> CO2 + H2O + ATP (38)

Question 6

What is photosynthesis?

Answer 6

Energy from sunlight used to produce chemical energy for life processes

Question 7

What is the reaction in photosynthesis?

Answer 7

Carbon dioxide + water + light energy——> sugars and oxygen

Question 8

What happens in photolysis?

Answer 8

• Water is split using light energy
• oxygen is released and hydrogen is retained on a hydrogen acceptor
• ATP is generated from ATP and phosphate

Question 9

What happens in the second stage of photosynthesis?

Answer 9

• CO2 is fixed to make 2 sugars

- ATP needed

Question 10

What light does chlorophyll absorb?

Answer 10

Blue and red might

Question 11

Which type of light gives the largest amount of photosynthesis?

Answer 11

Blue and red lighted

Question 12

What are limiting factors of photosynthesis?

Answer 12

Temperature, light intensity and CO2