2.1 Photosynthesis

Question 1

What type of organisms carry out photosynthesis?

Answer 1

Plants and algae

Question 2

What does chlorophyll do?

Answer 2

Absorbs the suns light energy

Question 3

What is the equation for photosynthesis?

Answer 3

Carbon dioxide + water —> glucose +oxygen

Question 4

Describe the process for photosynthesis?

Answer 4

Carbon dioxide is taken in by the leaves, water is taken up by the roots, chlorophyll traps the light energy needed, the energy is used to convert carbon dioxide and water into glucose

Question 5

What is released as a by-product of photosynthesis?

Answer 5

Oxygen

Question 6

What is some of the glucose made by photosynthesis converted in to?

Answer 6

Insoluble starch for storage

Question 7

What is the test for starch?

Answer 7

Iodine

Question 8

What does the test for starch show?

Answer 8

We can identify starch in the leaf and show that photosynthesis has occurred

Question 9

What do variegated leaves have?

Answer 9

Patches of green (with chlorophyll) and white (without chlorophyll). Only the green patches will turn the iodine solution blue-black to show starch has been made