Photosynthesis

Question 1

What are the products of photosynthesis?

Answer 1

Glucose and oxygen

Question 2

What three factors can limit the rate of photosynthesis?

Answer 2

Light, CO2, Temperature

Question 3

How is glucose used by plants and algae? (There are 5 of ways)

Answer 3

Used in respiration, used to produce fat, oil, cellulose (which strengthens cell walls) and proteins

Question 4

What else do plants need to absorb from the soil to produce proteins?

Answer 4

Nitrate ions

Question 5

What do plants store glucose as?

Answer 5

Insoluble starch

Question 6

List three things you can do in a greenhouse to increase growth.

Answer 6

Artificial light - allows photosynthesis to continue; Heating - allows photosynthesis to continue at an increased rate; the heater can also give off extra carbon dioxide released.

Question 7

What are the reactants needed for photosynthesis?

Answer 7

Water and Carbon dioxide

Question 8

Which type of energy is essential for photosynthesis to take place?

Answer 8

Light energy

Question 9

Which organelle (part of a cell) carries out photosynthesis?

Answer 9

Chloroplast

Question 10

What is the name of the green substance which captures light energy (and is found in chloroplasts) to enable photosynthesis?

Answer 10

Chlorophyll

Question 11

Where does the water, required by plants, come from?

Answer 11

The soil