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Class 9 Biology · Chapter 8 · Test 3

Cellular Respiration

25 MCQs on aerobic and anaerobic respiration, fermentation, glycolysis, Krebs cycle, electron transport chain, and ATP production.

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

    Cellular respiration is the oxidation of:

    • AFood inside cells
    • BDNA outside cells
    • CProteins in the nucleus
    • DChlorophyll in chloroplasts
    Show answer

    Answer: A

    Cellular respiration is the oxidation of food inside cells to obtain energy.

  2. Question 2

    The most commonly used food molecule for cellular respiration is:

    • AGlucose
    • BCellulose
    • CProtein
    • DChlorophyll
    Show answer

    Answer: A

    The chapter states that glucose is the most common food used by cells to obtain energy.

  3. Question 3

    Cellular respiration occurring in the presence of oxygen is called:

    • AAerobic respiration
    • BAnaerobic respiration
    • CFermentation
    • DGlycolysis
    Show answer

    Answer: A

    Aerobic respiration occurs in the presence of oxygen.

  4. Question 4

    Aerobic respiration involves the:

    • AComplete oxidation of glucose
    • BIncomplete oxidation of glucose
    • CFormation of alcohol only
    • DFormation of lactic acid only
    Show answer

    Answer: A

    The chapter defines aerobic respiration as the complete oxidation of glucose with maximum energy release.

  5. Question 5

    Cellular respiration occurring in the absence of oxygen is called:

    • AAnaerobic respiration
    • BAerobic respiration
    • CPhotosynthesis
    • DTranspiration
    Show answer

    Answer: A

    Anaerobic respiration occurs in the absence of oxygen.

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