Question

Figure 8.18 Which of the following statements is true?

a. In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. $C{O}_2$and water are products.

b. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants. $C{O}_2$and oxygen are products.

c. In photosynthesis, water, carbon dioxide, ATP, and NADPH are reactants. RuBP and oxygen are products.

d. In photosynthesis, water and carbon dioxide are reactants. $C{O}_2$and oxygen are products.

Short answer

Both${\mathrm{H}}_2\mathrm{O}$and${\mathrm{CO}}_2$ are reactants in photosynthesis. Products are G3P and oxygen.

When carbohydrates are generated in the presence of chlorophyll, the process is known as photosynthesis.

As a result, option is the right response (d)

Step-by-step solution

Introduction

Photosynthesis is the conversion of light energy into chemical energy by green plants and other organisms. Light energy is collected and utilized by green plants during photosynthesis to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic molecules.

Explanation of the Correct Answer

The reactants in photosynthesis are ${\mathrm{H}}_2\mathrm{O}$and ${\mathrm{CO}}_2$. $G_{3}P$and oxygen are two examples of products. Photosynthesis is the process of producing carbohydrates in the presence of chlorophyll. Option (d) is the correct answer.

Explanation of Incorrect Answers

Option (a) The reactants of photosynthesis are oxygen,${\mathrm{CO}}_2$, ATP,${\mathrm{H}}_2\mathrm{O}$ and NADPH. G3P and oxygen are two examples of products. The Calvin cycle's reduction stage includes ATP and NADPH. As a result, this is a bad choice.

Option (b) Chlorophyll ${\mathrm{H}}_2\mathrm{O}$and${\mathrm{CO}}_2$ are reactants in photosynthesis. G3P and oxygen are two examples of products. Chlorophyll is a photosynthetic pigment that is incorporated in the membrane of chloroplasts and initiates photosynthetic reactions by absorbing light. Because chlorophyll is only a pigment that begins reactions, it does not participate in them. As a result, this is an inaccurate response.

Option (c) In photosynthesis, the reactants are carbon dioxide, ATP,${\mathrm{H}}_2\mathrm{O}$ and NADH. RuBP and oxygen are two examples of products. RuBP is not a product; rather, it is regenerated to keep the cycle going. As a result, this response