TEAS Science · Practice Question

    Cellular respiration: TEAS Practice Question with Answer & Explanation

    An original TEAS 7-style science practice question, written for nursing-school applicants — with a full breakdown of every answer choice.

    Question

    Which organelle produces most of a cell's ATP during aerobic respiration?

    • A.Nucleus
    • B.Mitochondrion
      Correct
    • C.Golgi apparatus
    • D.Lysosome

    Correct answer: B. Mitochondria use the citric acid cycle and electron transport chain to produce most cellular ATP.

    Why B is correct

    Mitochondria use the citric acid cycle and electron transport chain to produce most cellular ATP.

    How to solve this TEAS question

    Identify what the question is testing, eliminate choices that conflict with the relevant rule or evidence, and then select the option that directly answers the prompt.

    Review the alternatives

    The other choices do not satisfy the scientific fact, mathematical operation, language rule, or reading evidence tested by this question. Always compare each option with the exact wording of the prompt before deciding.

    Quick study tip: Associate mitochondria with aerobic energy production.

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