Science Quiz – Test 9

Science quiz, test 9 of 15: 10 multiple-choice questions with answers. Try them, then play the interactive quiz on Zeno to earn XP.

  1. Question 81

    What is the most common isotope of hydrogen found in nature?

    • A Hydrino
    • B Protium
    • C Tritium
    • D Deuterium
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    Correct answer: Protium

  2. Question 82

    What is the term for the process by which living organisms convert food into energy at the cellular level?

    • A fermentation
    • B cellular respiration
    • C photosynthesis
    • D osmosis
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    Correct answer: cellular respiration

  3. Question 83

    What is the name of the process by which plants lose water vapor through small openings in their leaves?

    • A Condensation
    • B Evaporation
    • C Transpiration
    • D Absorption
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    Correct answer: Transpiration

  4. Question 84

    What is the powerhouse of the cell that generates energy in the form of ATP?

    • A Mitochondria
    • B Chloroplast
    • C Nucleus
    • D Endoplasmic Reticulum
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    Correct answer: Mitochondria

  5. Question 85

    What is the process by which water vapor is released from plants into the atmosphere?

    • A Evaporation
    • B Condensation
    • C Precipitation
    • D Transpiration
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    Correct answer: Transpiration

  6. Question 86

    What is the name of the process by which certain organisms, specifically some bacteria and archaea, derive energy from inorganic compounds instead of sunlight or organic materials?

    • A Chemosynthesis
    • B Photosynthesis
    • C Fermentation
    • D Respiration
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    Correct answer: Chemosynthesis

  7. Question 87

    What is the basic unit of life that can perform all life processes?

    • A Cell
    • B Tissue
    • C Atom
    • D Molecule
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    Correct answer: Cell

  8. Question 88

    What is the name of the process by which living organisms produce energy through the breakdown of glucose in the presence of oxygen?

    • A Transpiration
    • B Photosynthesis
    • C Fermentation
    • D Cellular respiration
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    Correct answer: Cellular respiration

  9. Question 89

    What is the smallest unit of an element that retains the properties of that element?

    • A Atom
    • B Ion
    • C Molecule
    • D Compound
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    Correct answer: Atom

  10. Question 90

    What is the chemical formula for the primary pigment in photosynthesis, chlorophyll a?

    • A C55H72MgN4O5
    • B C48H64MgN4O6
    • C C55H70MgN4O5
    • D C54H72MgN4O5
    Show answer

    Correct answer: C55H72MgN4O5

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