photosynthesis

Question 1

photosynthesis

Answer 1

During photosynthesis, plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light. Photosynthesis requires energy to drive the chemical reaction. Photosynthesis is an endothermic reaction. This means it cannot occur without energy

Question 2

Word equation

Answer 2

Carbon dioxide +Water(+light) =Glucose+oxygen

Question 3

Symbol equation

Answer 3

6CO2+6H20(+light)=C6H12O6+6O2

Question 4

Light and chlorophyll

Answer 4

The light required is absorbed by a green pigment called chlorophyll in the leaves. Chlorophyll is found in chloroplasts in plant cells, particularly the palisade and spongy mesophyll cells.

Question 5

What is the main organ for photosynthesis

Answer 5

Plant leaves are the main photosynthetic organ, but other parts of the plant exposed to the light can develop chlorophyll and photosynthesise.

Question 6

Carbon dioxide

Answer 6

The carbon dioxide required for photosynthesis comes from the air. It enters leaves through the stomata.

Question 7

Water

Answer 7

Water enters the plant through the roots and is transported to the leaves in the xylem.

Question 8

Oxygen

Answer 8

Oxygen is formed as the waste product. Some is used for respiration by the plant. The excess is released from the leaves, making it available for respiration to animals and many microorganisms