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Class 9 Biology · Chapter 8 · Test 2

Photosynthesis

25 MCQs on photosynthesis, its equation, autotrophic nutrition, light and dark reactions, chloroplast structures, and the role of chlorophyll.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

  1. Question 1

    Photosynthesis is the process of synthesis of glucose from:

    • ACarbon dioxide and water
    • BOxygen and glucose
    • CProtein and water
    • DCarbon dioxide and oxygen
    Show answer

    Answer: A

    The chapter defines photosynthesis as the synthesis of glucose from carbon dioxide and water in the presence of light and chlorophyll.

  2. Question 2

    Which organisms use inorganic raw materials to prepare organic food?

    • AAutotrophic organisms
    • BOnly animals
    • COnly fungi
    • DAll heterotrophic organisms
    Show answer

    Answer: A

    Autotrophic organisms such as plants and some bacteria use inorganic raw materials to prepare organic food.

  3. Question 3

    The main organic product of photosynthesis mentioned in the chapter is:

    • ACarbohydrates
    • BProteins
    • CLipids
    • DNucleic acids
    Show answer

    Answer: A

    The chapter states that the organic food prepared by autotrophs is in the form of carbohydrates.

  4. Question 4

    Which gas is produced as a by-product of photosynthesis?

    • AOxygen
    • BNitrogen
    • CCarbon monoxide
    • DHydrogen
    Show answer

    Answer: A

    Oxygen is produced as a by-product of photosynthesis.

  5. Question 5

    Which substances are the raw materials for photosynthesis?

    • ACarbon dioxide and water
    • BGlucose and oxygen
    • COxygen and water
    • DCarbon dioxide and glucose
    Show answer

    Answer: A

    The general equation shows carbon dioxide and water as reactants.

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