Which of the following equations
correctly shows the reactants and products of photosynthesis? (A) Carbon monoxide plus water
forms glucose plus oxygen. (B) Glucose plus oxygen forms
carbon dioxide plus water. (C) Carbon dioxide plus glucose
forms oxygen plus water. Or (D) carbon dioxide plus water
forms glucose plus oxygen.
Unlike animals, most plants make
their own food through a process called photosynthesis. During this process, plants convert
carbon dioxide and water, which they take up from their environment, into glucose
and oxygen. Plants tend to absorb the carbon
dioxide required for photosynthesis through their leaves from the atmosphere and the
water they require for photosynthesis through their roots from soil.
Photosynthesis must occur in the
presence of a light source, like the Sun. The oxygen that’s produced in
photosynthesis is either used in cellular respiration or is released back into the
atmosphere. Plants can use the glucose produced
in photosynthesis as a building material or as a reactant for cellular respiration
to release energy in the form of ATP.
This means that the equation that
correctly shows the reactants and products of photosynthesis is (D). Carbon dioxide plus water forms
glucose plus oxygen.