photosynthesis

Question 1

what are ht reactants needed in photosynthesis

Answer 1

water and carbon dioxide

Question 2

what are the products of photosynthesis

Answer 2

oxygen and glucose

Question 3

which type of energy is needed for photosynthesis to take place

Answer 3

light energy from the sun

Question 4

which organelle carries out photosynthesis

Answer 4

chloroplast

Question 5

what is the green substance which captures light inside the chloroplast for photosynthesis to occur

Answer 5

chlorophyll

Question 6

where does the water and nutrients for photosynthesis come from

Answer 6

the soil

Question 7

what three factors can affect the rate of photosynthesis

Answer 7

light intensity
CO2 concentration
temperature

Question 8

how is glucose used by plants and algae (5 ways)

Answer 8

used in respiration
used to produce fat
to produce oil
to make cellulose (which strengthens cell walls)
to produce proteins

Question 9

what else do plants need to absorb from the soil to produce proteins

Answer 9

nitrate ions

Question 10

what do plants store glucose as

Answer 10

insoluble starch

Question 11

list three things you can do in a greenhouse to increase growth

Answer 11

• artificial light (for photosynthesis)
• heating (allows photosynthesis to continue at a increased rate)
• the heater will also give off CO2 (which will increase the rate of photosynthesis)