Science Quiz – Test 18

Science quiz, test 18 of 19: 10 multiple-choice questions with answers. Try them, then play the interactive quiz on Zeno to earn XP.

  1. Question 171

    What is the primary method by which genetic information is transferred from DNA to RNA in eukaryotic cells?

    • A Transcription
    • B Translocation
    • C Replication
    • D Translation
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    Correct answer: Transcription

  2. Question 172

    What is the chemical process by which certain bacteria convert sulfate to sulfide in anaerobic conditions?

    • A Ammonia assimilation
    • B Nitrate reduction
    • C Sulfate reduction
    • D Sulfite oxidation
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    Correct answer: Sulfate reduction

  3. Question 173

    What is the primary gas used by plants during photosynthesis to produce glucose?

    • A Hydrogen
    • B Carbon dioxide
    • C Nitrogen
    • D Oxygen
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    Correct answer: Carbon dioxide

  4. Question 174

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

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

  5. Question 175

    What is the primary type of bond that holds together the atoms in a water molecule?

    • A Hydrogen bond
    • B Ionic bond
    • C Metallic bond
    • D Covalent bond
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    Correct answer: Covalent bond

  6. Question 176

    What is the primary component of Earth's atmosphere that is essential for respiration in animals?

    • A Carbon Dioxide
    • B Oxygen
    • C Hydrogen
    • D Nitrogen
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    Correct answer: Oxygen

  7. Question 177

    What is the primary gas produced during cellular respiration in animals?

    • A Carbon dioxide
    • B Hydrogen
    • C Oxygen
    • D Nitrogen
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    Correct answer: Carbon dioxide

  8. Question 178

    What is the primary molecule that carries genetic information in living organisms?

    • A Protein
    • B DNA
    • C RNA
    • D Carbohydrate
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    Correct answer: DNA

  9. Question 179

    What is the primary mechanism by which neurons communicate with each other?

    • A Axonal conduction
    • B Neuroplasticity
    • C Synaptic transmission
    • D Dendritic integration
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    Correct answer: Synaptic transmission

  10. Question 180

    What is the process by which bacteria convert organic materials into energy in the absence of oxygen?

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

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