Photosythesis

Question 0

What are the raw materials of photosynthesis?

Answer 0

Carbon dioxide and water

Question 1

What is the word equation for photosynthesis?

Answer 1

Carbon dioxide + water—-light energy+ chlorophyll—-glucose+ oxygen

Question 2

WhT is produced when using chlorophyll and light ?

Answer 2

Glucose and oxygen

Question 3

What is carbon dioxide converted to?

Answer 3

Carbohydrates

Question 4

What is made first in photosynthesis?

Answer 4

Glucose

Question 5

What can the glucose be broken down to?

Answer 5

To release energy in respiration or converted into starch for storage of cellulose to make cell walls

Question 6

Describe what photosynthesis is

Answer 6

Series of enzyme controlled reactions that has two stages

Question 7

Name and describe the first stage in photosynthesis

Answer 7

Light dependent stage :

1. Light energy from sun trapped in chlorophyll and converted into chemical energy
2. Chlorophyll is found inside chloroplast
3. Chemical energy produced is in the form of ATP
4. Light energy used to break down water into hydrogen and oxygen
5. Excess oxygen produced diffuses out of the cell
6. Hydrogen produced is picked up by a hydrogen acceptor molecule

Question 8

Name and describe the second stage in photosynthesis

Answer 8

1. Carbon dioxide, ATP, Hydrogen from the first stage are used to produce chemical energy in the form of sugar glucose
2. Glucose is used for respiration, converted into and stored as starch or converted into the structural cell wall component cellulose

Question 9

What factors can affect the rate of photosynthesis?

Answer 9

Light intensity, temperature and carbon dioxide at different times of the year.