Question

A student drew the following model.

Carbon dioxide + Water--(Light)-->Sugar + Oxygen
What does the model represent?

A. How plants transform light into stored chemical energy
B. How energy is released from sugar molecules
C. How the sun delivers thermal energy to earth
D. How bacteria transform nitrogen into a usable from

Answer 1

Answer is A (aka photosynthesis)

Answer 2

Answer: The correct answer is-

A. How plants transform light into stored chemical energy.

The given equation in the model of the represents word equation for photosynthesis.

Photosynthesis is a process of formation of food ( that is a carboydrate) in green plants and algae using CO2 (carbon dioxide) and H2O (water) in the presence of sunlight.

During this process, a green pigment in the chloroplast called chlorophyll, absorbs solar energy and converts it into chemical energy in the form of ATP and NADPH.

In the next phase, which is a light independent phase ,the chemical energy is utilized in the formation of glucose, which is a food molecule for green plants and algae.

Thus, option A) is the right answer.