Lucy sets up an investigation by placing a plastic bag over a plant. She secures the plastic bag so that it is completely sealed and nothing can enter. She observes the plant daily to see if it remains green and healthy.

Question

Which TWO questions is her investigation designed to answer?

a
Can the plant perform respiration faster than a plant that is not sealed?
b
Can the plant perform respiration without a large supply of oxygen?
c
Can the plant perform photosynthesis without a large supply of carbon dioxide?
d
Can the plant perform photosynthesis without a large supply of oxygen?
e
Can the plant perform photosynthesis faster than a plant that is not sealed?
f
Can the plant perform respiration without a large supply of carbon

Answer 1

Lucy's investigation, which involves sealing a plant in a plastic bag to observe its health and growth, is primarily aimed at understanding the effects of limited gas exchange on the plant's ability to perform key processes like respiration and photosynthesis.

The two questions her investigation is designed to answer would be:

b. Can the plant perform respiration without a large supply of oxygen?
c. Can the plant perform photosynthesis without a large supply of carbon dioxide?

These questions directly relate to the conditions created by sealing the plant in a plastic bag, as the plant would be restricted in both oxygen and carbon dioxide availability.