Photosynthesis

Question 1

What is the symbol equation for photosynthesis?

Answer 1

6CO2 + 6H2O -> C6H12O6 + 6CO2

Question 2

Where does photosynthesis take place?

Answer 2

It takes place in the stem and leaves

Question 3

Where is chlorophyll found and what does it do?

Answer 3

It is found in the chloroplasts and they absorb light energy for photosynthesis

Question 4

Name the parts of a plant cell

Answer 4

Nucleus
Chloroplast
Cytoplasm 
Vacuole
Cell membrane 
Cell wall

Question 5

What extra parts does a plant cell have to an animal cell?

Answer 5

Chloroplast
Vacuole
Cell wall

Question 6

What does the nucleus do?

Answer 6

Store the DNA

Question 7

What does the cytoplasm do?

Answer 7

Jelly like substance, most of the cell activities happens here

Question 8

What does the cell membrane do?

Answer 8

Controls what goes in and out of the cell

Question 9

What does the vacuole do?

Answer 9

Is filled with sap and is storage space

Question 10

What does the chloroplast do?

Answer 10

It contains chlorophyll for the process of photosynthesis

Question 11

What does the cell wall do?

Answer 11

It is made of cellulose and is to support the cell

Question 12

Name the parts in the cross section of a leaf

Answer 12

Waxy cuticle 
Epidermis
Palisade layer
Vein
Spongy layer cells
Air space
Lower epidermis 
Guard cells 
Stomata

Question 13

What do plants store glucose as?

Answer 13

Starch

Question 14

What can glucose be used for?

Answer 14

Respiration
Cellulose
Minerals

Question 15

Name the 4 main minerals and their usage

Answer 15

Nitrates - making leaves
Phosphates - making roots
Potassium ions - making flowers & fruit
Magnesium ions - making chlorophyll

Question 16

Where do minerals come from?

Answer 16

Rocks
Natural fertilisers
Artificial fertilisers

Question 17

What does the Xylem do?

Answer 17

It carries water up the plant to the leaves

Question 18

What happens if you give a plant too much water?

Answer 18

The plant will die

Question 19

What chemical do you use to test for starch?

Answer 19

Iodine

Question 20

What is the process of eutrophication?

Answer 20

Fertilisers get washed into rivers causing the plants/algae to overgrow and block out the sunlight. Other plants die and use up oxygen as they rot causing fish and other animals to suffocate

Question 21

What happens when there is a Nitrogen deficiency?

Answer 21

Weak stem, yellow or dead leaves from bottom upward

Question 22

What happens when there is a phosphorous deficiency?

Answer 22

Purple leaves, small roots

Question 23

What happens when there is a potassium deficiency?

Answer 23

Poor flower/fruit growth, yellow leaves with dead spots

Question 24

What happens when there is a magnesium deficiency?

Answer 24

Leaves turn yellow from bottom upwards

Question 25

What is the word equation for photosynthesis?

Answer 25

Carbon dioxide + Water (+ energy) -> Glucose + Oxygen

Question 26

What is transpiration?

Answer 26

Transpiration is evaporation of water from plant leaves.

Question 27

What is diffusion?

Answer 27

The process by which substances move down a concentration gradient.
(Movement of gases)

Question 28

How do plants make carbohydrates?

Answer 28

Through photosynthesis, producing glucose sugars

Question 29

What does the stomata do?

Answer 29

Stomata open and close to allow the intake of carbon dioxide and the release of oxygen.