Photosynthesis

Question 0

What does light provide for Photosynthesis?

Answer 0

Energy

Question 1

What factors limit the rate of Photosynthesis? (3 marks)

Answer 1

Light intensity Amount of carbon dioxide Temperature

Question 2

Why is temperature a limiting factor?

Answer 2

Photosynthesis is an enzyme driven reaction

Question 3

Finish this equation… CO2 + H2O —–> C6H12O6 + ?

Answer 3

O2 Or oxygen

Question 4

What is glucose used for? (5 marks)

Answer 4

Respiration Making cell walls Making proteins Making lipids Making starch

Question 5

Is starch soluble or insoluble?

Answer 5

Insoluble

Question 6

Why do plants need magnesium?

Answer 6

To make chlorophyll

Question 7

Why do plants need nitrates?

Answer 7

To make proteins

Question 8

What mineral is this plant lacking?

Answer 8

It lacks magnesium, it is yellow.

Magnesium is a major part of the chlorophyll molecule. No magnesium, no chlorophyll, no green!!

Question 9

What is happening here?

Answer 9

It is a hydroponics system. Where plants are grown in a medium containing the optimum amounts of nutrients instead of soil