B2.3 Photosynthesis Flashcards Preview

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Flashcards in B2.3 Photosynthesis Deck (11)
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1
Q

light energy

Carbon Dioxide + Water =============>

A

Glucose + Oxygen

2
Q

Where is light absorbed during photosynthesis?

A

In the green substance chlorophyll which is found in chloroplasts in plant cells and algae

3
Q

What is the light energy used for?

A

Converting carbon dioxide and water into glucose

4
Q

What is released as a product of photosynthesis?

A

Oxygen

5
Q

What may limit the rate of photosynthesis?

A

Shortage of light, low temperature and shortage of carbon dioxide

6
Q

Any one of light, temperature and availability of carbon dioxide may…

A

Be a factor that limits photosynthesis

7
Q

What can the glucose produced by photosynthesis be converted into?

A

Insoluble storage for starch

8
Q

What do plant cells use some of the glucose produced for?

A

Respiration

9
Q

What else can glucose be used for in plants and algae?

A

Produce fat and oil for storage, produce cellulose which strengthens the cell wall and to produce proteins

10
Q

What else do plants use to produce proteins?

A

Nitrate ions absorbed from the soil

11
Q

What ideal conditions are enhanced in a greenhouse?

A

Temperature- greenhouses trap heat
Light- the glass lets light through and at night artificial light is used
Carbon Dioxide- a paraffin heater may be used to increase the level of carbon dioxide
Enclosed- the plants being inclosed in a green house keeps them free from pests and diseases
Fertilisers- can be added to provide the minerals needed for healthy growth