Plant nutrition

Question 1

What is photosynthesis?

Answer 1

Photosynthesis is a chemical reaction that occurs in plants in order for them to make glucose, this is how they obtain the nutrition they need to survive.

Question 2

What is the word equation for photosynthesis?

Answer 2

Carbon dioxide + water –> glucose + oxygen

Question 3

What’s the symbol equation of photosynthesis?

Answer 3

CO2 + H20 –> C6 H12 06 +O2

Question 4

name 4 adaptions that Palisade cells/layer to help them photosynthesise:

Answer 4

1. Tightly packed to ensure as much sunlight as possible.
2. Close to the top of leaf to ensure as much sunlight.
3. Elongated palisade cells can absorb the sunlight.
4. Palisades cells have many chloroplasts tightly packed in their cytoplasm.

Question 5

Name the parts of an animal cell:

Answer 5

1. nucleus
2. cytoplasm
3. cell membrane
4. ribosomes
5. mitochondria

Question 6

Part of plant cell not in animal cell:

Answer 6

1. sap vacuole
2. chloroplast
3. cell wall

Question 7

What does chlorophyll do?

Answer 7

It absorbs light energy and converts it to chemical energy.

Question 8

What does the large surface area do (leaves)?

Answer 8

They have a large surface area to absorb sunlight, they photosynthesise.

Question 9

What does the thin leaves do in plants?

Answer 9

They are thin as there is a short distance for carbon dioxide to diffuse into leaf cells.

Question 10

What does the waxy cuticle do?

Answer 10

Covers the leaves and is like waterproof layer and helps the plant to retain water and stop it from dying.

Question 11

What does the palisade mesophyll layer do?

Answer 11

One of the cells in the upper part of the leaf that contain the most chloroplasts and carry out most of the photosynthesis.

Question 12

what does the spongy mesophyll layer do?

Answer 12

The layer of cells in the lower part of the leaf where there are many air spaces, so increasingly the internal surface area to volume ratio. So they capture the light and makes food. The air spaces between them allow easy gas exchange.

Question 13

What does xylem and phloem vessels do?

Answer 13

• Xylem transport water and solutes from the roots of the leaves.
• Phloem transport food from the leaves to the rest of the plant.

Question 14

What does the stomata do?

Answer 14

Tiny holes in the surface area of a leaf (mostly the lower epidermis) which allow gases to diffuse in and put.

Question 15

What are the limiting factors of photosynthesis?

Answer 15

• Carbon dioxide
• Light intensity
• Temperature

Question 16

What are mineral ions needed for?

Answer 16

Growth.

Question 17

What are magnesium ions for?

Answer 17

Chlorophyll.

Question 18

What are nitrate ions needed for?

Answer 18

Amino acids.

Question 19

What are the deficiency symptoms of not enough nitrate ions?

Answer 19

• Poor growth.
• Older leaves.
• Turn yellow.

Question 20

What is the mineral where the leaves turn purple and there is poor growth?

Answer 20

Phosphate ions.

Question 21

What are potassium ions used for?

Answer 21

Used for respiration and photosynthesis.