Question

3) Notice in the image of the plant that both oxygen and carbon dioxide

enter and exit the plant. Using what you know about photosynthesis
and cellular respiration, explain what is happening with regard to these
two gases.
A) Unlike animals, plants use carbon dioxide in cellular respiration and
produce oxygen.
B) Plants, as autotrophs, only undergo photosynthesis and both use and
produce oxygen and carbon dioxide in this process.
C) Plants require oxygen for photosynthesis and produce carbon
dioxide. Plants then use the carbon dioxide produced in cellular
respiration, releasing oxygen as a byproduct.
D) Plants require carbon dioxide for photosynthesis and produce
oxygen as a byproduct. Plants then use the oxygen released in
cellular respiration, producing carbon dioxide as a byproduct.

Answer 1

Plants require carbon dioxide for photosynthesis and produce oxygen as a byproduct. Plants then use the oxygen released in cellular respiration, producing carbon dioxide as a byproduct.

Step-by-step explanation:

Answer 2

Option-D

Step-by-step explanation:

Plants are the organisms present on the Earth which can be easily marked with their green color. The green color is due to the presence of the chloroplast which encompasses the chlorophyll pigment.

The chlorophyll pigment has the ability to capture the sunlight energy which initiates the process of photosynthesis. The photosynthesis process utilizes Carbon dioxide gas and water to form glucose molecules.

The glucose molecule is then transported to the other parts of the plants like stem and roots where photosynthesis is absent and to obtain the energy, plant perform cellular respiration. The cellular respiration requires oxygen gas which acts as an electron acceptor molecule.

Thus, Option-D is correct.