Nutrition in Plants

Question 1

In the light-dependent stage of photosynthesis, what happens?

Answer 1

Photolysis, water is split into Hydrogen and Oxygen

light energy is absorbed by chlorophyll and then converted into chemical energy

Question 2

what happens in the light-independent stage of photosynthesis?

Answer 2

The hydrogen produced during photolysis reduces carbon dioxide into glucose

Question 3

From which compound is oxygen produced by a plant from?

Answer 3

Water

Question 4

equation for the formation of glucose?

Answer 4

6CO2 + 24H = C6H12O6 + 6 H2O
________^
12 H2O= 24H +602

Question 5

Limiting factors of photosynthesis

Answer 5

• Light intensity
• Concentration of carbon dioxide
• Temperature

Question 6

why is glucose converted to sucrose

Answer 6

so that it can be transported to other parts of the plant

Question 7

Name on reason why photosynthesis is important for life on earth?

Answer 7

• photosynthesis makes chemical energy available to animals
• It removes carbon dioxide from the earth and provides oxygen
• Energy produced by photosynthesis can be stored in fossil fuels

Question 8

Function of a petiole on a plant?

Answer 8

hold ‘lamina’ away from plant

Question 9

Lamina and its characteristics?

Answer 9

lamina is the leaf. Large surface area to volume ratio, allowing carbon dioxide to exit the leaf quickly and obtain the maximum amount of sunlight

Question 10

what are the properties of a cuticle in a plant?

Answer 10

it is waxy and transparent, to prevent water loss

Question 11

Why is there more chloroplasts in the upper palisade mesophyll cells?`

Answer 11

more light energy can be absorbed near the leaf surface

Question 12

where are the xylem and phloem located in a leaf?

Answer 12

in the spongy mesophyll

Question 13

How does the guard cells/stomata work/

Answer 13

Refer to textbook its too long to type out