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Class 9 Biology · Chapter 8 · Test 1

Bioenergetics and ATP

25 MCQs on bioenergetics, oxidation-reduction reactions, ATP and ADP, ATP structure, energy release, and the ATP-ADP cycle.

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

    Bioenergetics is the study of:

    • AEnergy transformations in living organisms
    • BOnly the structure of cells
    • CClassification of organisms
    • DThe structure of DNA
    Show answer

    Answer: A

    Bioenergetics is the study of how living organisms acquire, convert, store, and utilize energy.

  2. Question 2

    Organisms obtain energy primarily from their:

    • AFood
    • BDNA
    • CCell walls
    • DMineral salts
    Show answer

    Answer: A

    The chapter states that organisms obtain energy primarily from food.

  3. Question 3

    Plants primarily capture energy from:

    • ASunlight
    • BProteins
    • COxygen
    • DATP only
    Show answer

    Answer: A

    Plants capture sunlight through photosynthesis.

  4. Question 4

    In oxidation-reduction reactions, what is transferred between molecules?

    • AElectrons
    • BProteins
    • CGlucose molecules
    • DCell organelles
    Show answer

    Answer: A

    The chapter states that electrons are transferred between molecules during redox reactions.

  5. Question 5

    In oxidation, a molecule:

    • ALoses electrons
    • BGains electrons
    • CLoses water only
    • DGains glucose
    Show answer

    Answer: A

    Oxidation is defined in the chapter as the loss of electrons.

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