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The use of energy from sunlight by plants doing photosynthesis is the basis of life on earth. Which of the following statement is correct for photosynthesis? 1. chlorophyll (green pigment of the leaf), light, and CO2 are required for photosynthesis to occur. 2. photosynthesis occurs only in the green parts of the leaves in the presence of light.  3. chlorophyll is the chief pigment associated with photosynthesis.

The use of energy from sunlight by plants doing photosynthesis is the basis of life on earth. Which of the following statement is correct for photosynthesis? 1. chlorophyll (green pigment of the leaf), light, and CO2 are required for photosynthesis to occur. 2. photosynthesis occurs only in the green parts of the leaves in the presence of light.  3. chlorophyll is the chief pigment associated with photosynthesis. Correct Answer 1, 2 and 3

Explanation:

  • The leaves have a green pigment called chlorophyll.
  • It helps leaves to capture the energy of the sunlight.
  • This energy is used to synthesize (prepare) food from carbon dioxide and water. 
  • Since the synthesis of food occurs in the presence of sunlight, it is called photosynthesis.
  • Photo means light and Synthesis means to combine.
  • We find that chlorophyll, sunlight, carbon dioxide, and water are necessary to carry out the process of photosynthesis.
  • It is a unique process on the earth.
  • The solar energy is captured by the leaves and stored in the plant in the form of food.
  • Thus, the sun is the ultimate source of energy for all living organisms. 
  • By the middle of the nineteenth century, the key features of plant photosynthesis were known, namely, that plants could use light energy to make carbohydrates from CO2 and water.

Thus,

  1. chlorophyll (green pigment of the leaf), light, and CO2 are required for photosynthesis to occur: Correct
  2. photosynthesis occurs only in the green parts of the leaves in the presence of light: Correct
  3. chlorophyll is the chief pigment associated with photosynthesis: Correct

Related Questions

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