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Consider the following statements describing the functions of plants: 1. Photosynthesis is a process to convert light energy from the Sun into chemical energy i.e., Carbohydrates are synthesized from carbon dioxide and water using sunlight 2. Fermentation or Zymology is a metabolic process that converts carbohydrates to alcohols and carbon dioxide Which of the statements given above is/are correct?

Consider the following statements describing the functions of plants: 1. Photosynthesis is a process to convert light energy from the Sun into chemical energy i.e., Carbohydrates are synthesized from carbon dioxide and water using sunlight 2. Fermentation or Zymology is a metabolic process that converts carbohydrates to alcohols and carbon dioxide Which of the statements given above is/are correct? Correct Answer Both 1 and 2

The correct answer is 1 only.

Key Points

  • Photosynthesis
    • It is a process by which green plants transform light energy into chemical energy. water, light, and carbon dioxide are absorbed by a plant to produce oxygen, sugars, and more carbon dioxide. Hence statement 1 is correct.
  • Fermentation 
    • It is an anaerobic metabolic process in which glucose is partially oxidized to form acids and alcohol. The pyruvic acid formed by partial oxidation of glucose is converted to ethanol and carbon oxide. Hence statement 2 is correct.​

Additional Information

  • Types of fermentation-
    • On the basis of product formation-
      • Homo fermentation- only one type of product forms.
      • Hetero fermentation- more than one type of product forms.
  • Types of Photosynthesis-
    • There are two types of the photosynthesis process
      • Oxygenic- light energy transfers an electron from water to carbon dioxide to produce carbohydrates. it is most common in algae, plants, and cyanobacteria.
      • Anoxygenic-It uses electron donors other than water. it is most common in purple or green sulfur bacteria.

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