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Science Quiz – Test 17

Science quiz, test 17 of 19: 10 multiple-choice questions with answers. Try them, then play the interactive quiz on Zeno to earn XP.

  1. Question 161

    What is the basic unit of life that makes up all living organisms?

    • A Cell
    • B Tissue
    • C Organ
    • D Organism
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    Correct answer: Cell

  2. Question 162

    What is the powerhouse of the cell, responsible for producing energy in the form of ATP?

    • A Chloroplast
    • B Mitochondria
    • C Ribosome
    • D Nucleus
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    Correct answer: Mitochondria

  3. Question 163

    What is the basic building block of proteins?

    • A Carbohydrate
    • B Amino acid
    • C Nucleotide
    • D Fatty acid
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    Correct answer: Amino acid

  4. Question 164

    What is the primary pigment involved in photosynthesis in plants?

    • A Chlorophyll
    • B Xanthophyll
    • C Anthocyanin
    • D Carotene
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    Correct answer: Chlorophyll

  5. Question 165

    What is the primary process by which plants convert nitrogen from the atmosphere into a usable form for growth?

    • A Nitrogen fixation
    • B Denitrification
    • C Nitrification
    • D Ammonification
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    Correct answer: Nitrogen fixation

  6. Question 166

    What is the process by which organisms convert sunlight into chemical energy, primarily in the form of glucose?

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

  7. Question 167

    What is the primary process by which plants absorb carbon dioxide from the atmosphere?

    • A Evaporation
    • B Transpiration
    • C Respiration
    • D Photosynthesis
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    Correct answer: Photosynthesis

  8. Question 168

    What is the process by which bacteria convert nitrogen gas from the atmosphere into ammonia in the soil?

    • A Nitrogen reduction
    • B Nitrogen assimilation
    • C Nitrogen oxidation
    • D Nitrogen fixation
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    Correct answer: Nitrogen fixation

  9. Question 169

    What is the process by which plants convert sunlight into chemical energy in the form of glucose?

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

  10. Question 170

    What is the primary element found in organic compounds?

    • A Hydrogen
    • B Carbon
    • C Nitrogen
    • D Oxygen
    Show answer

    Correct answer: Carbon

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