photosynthesis (4.4.1)

Question 1

state the equation for photosynthesis

Answer 1

carbon dioxide + water —> glucose + oxygen

Question 2

what is the chemical symbol for glucose?

Answer 2

C6H12O6

Question 3

what is photosynthesis?

Answer 3

an endothermic reaction

energy is transferred from the environment to the chloroplasts by light.

Question 4

state the 5 uses of glucose from photosynthesis

Answer 4

• respiration
• produce fat
• produce cellulose
• produce amino acids
• converted into insoluble starch

Question 5

name the four limiting factors of photosynthesis

Answer 5

temperature
carbon dioxide concentration
light intensity
amount of chlorophyll

Question 6

describe the effect of light intensity on the rate of photosynthesis

Answer 6

The more light intensity the higher the rate photosynthesis, to a certain extent.

Question 7

describe the effect of carbon dioxide concentration on the rate of photosynthesis

Answer 7

the higher the carbon dioxide concentration the higher the rate of photosynthesis, up to a certain extent.

Question 8

describe the affect of temperature on the rate of photosynthesis

Answer 8

Plants cannot photosynthesise if it gets too hot.

If it gets too cold, the rate of photosynthesis will decrease.