Photosynthesis & Respiration

Question 1

Word equation for respiration

Answer 1

Oxygen + Glucose ——-> Carbon Dioxide + water + energy

Question 2

Word equation for photosynthesis

Answer 2

Carbon dioxide + water ——- light —»> glucose + oxygen

Question 3

When do plants respire

Answer 3

All of the time (plants photosynthesise only in the light)

Question 4

What are factors affecting the rate of photosynthesis

Answer 4

Light intensity
Temperature
Co2 Concentration

Question 5

The raw material or factor in shortest supply, and so restricting the photosynthetic rate is known as the

Answer 5

limiting factor

Question 6

Darkness

Is Photosynthesis taking place?
Is respiration taking place?

What is the net gas exchange
Oxygen absorbed, Carbon Dioxide Released

Answer 6

Is Photosynthesis taking place?
No
Is respiration taking place?
Yes

What is the net gas exchange
Oxygen absorbed, Carbon Dioxide Released

Question 7

Dim light

Is Photosynthesis taking place?
Is respiration taking place?

What is the net gas exchange
Compensating Point

Answer 7

Is Photosynthesis taking place?
Yes
Is respiration taking place?
Yes

What is the net gas exchange
Zero
Compensating Point

Question 8

Bright Light

Is Photosynthesis taking place?

Is respiration taking place?

What is the net gas exchange

Answer 8

Is Photosynthesis taking place?
Yes
Is respiration taking place?
Yes

What is the net gas exchange
Carbon dioxide absorbed, oxygen released