Practise MYP Biology questions on 3.5 Photosynthesis and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
A plant is moved from a completely dark room into a room with moderate light intensity. How will the rate of photosynthesis change?
Which tissue layer in the leaf is primary for light absorption due to its high density of tightly packed chloroplasts?
Which factor would most likely limit the rate of photosynthesis for a plant kept in a warm greenhouse () on a heavily overcast (cloudy) day?
Which of the following wavelengths of light is least effective for driving the chemical reactions of photosynthesis?
If a plant is kept at a very low light intensity, what is the effect of significantly increasing the surrounding carbon dioxide concentration?
It will increase and then immediately drop to zero
It will increase from zero to a higher rate
It will remain at zero because the plant has been dormant
It will decrease as the plant adjusts to the change
Palisade mesophyll
Upper epidermis
Lower epidermis
Spongy mesophyll
Oxygen concentration
Temperature
Carbon dioxide concentration
Light intensity
Green light
Red light
Blue light
Violet light
The plant will stop performing photosynthesis entirely
The rate of photosynthesis will stay approximately the same
The rate of photosynthesis will increase proportionally
The rate of photosynthesis will decrease due to toxicity
