Paper 2: Photosynthesis

Question 1

What is the equation for photosynthesis?

Answer 1

Carbon dioxide + water —> glucose + oxygen

Question 2

What is photosynthesis?

Answer 2

The process that plants use to make their own food

Question 3

What is the practical for photosynthesis?

Answer 3

Put 6 bottles each containing the same number of gel beads (containing algae) and hydrogen carbonate indicator solution at different distances from a lamp. Leave for 2 hours

Question 4

In the practical for photosynthesis, what does it mean if the indicator turns yellow?

Answer 4

Carbon dioxide concentration is hugh

Question 5

In the practical for photosynthesis, what does it mean if the indicator turns orange-red?

Answer 5

Carbon dioxide concentration is the same as in normal air

Question 6

In the practical for photosynthesis, what does it mean if the indicator turns purple?

Answer 6

Carbon dioxide concentration is low