Science Quiz – Test 13
Science quiz, test 13 of 19: 10 multiple-choice questions with answers. Try them, then play the interactive quiz on Zeno to earn XP.
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Question 121
What is the term for the process by which cells break down glucose to release energy, primarily in the presence of oxygen?
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Correct answer: Cellular respiration
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Question 122
What is the chemical formula for the primary pigment in photosynthesis, chlorophyll a?
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Correct answer: C55H72MgN4O5
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Question 123
What is the main gas emitted by plants during photosynthesis?
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Correct answer: Oxygen
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Question 124
What gas do humans primarily exhale during respiration?
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Correct answer: Carbon dioxide
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Question 125
What is the chemical structure of the most abundant protein in the human body, collagen?
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Correct answer: A triple helix of polypeptide chains
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Question 126
What is the primary function of ribosomes in a cell?
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Correct answer: Protein synthesis
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Question 127
What is the process by which plants convert light energy into chemical energy in the form of glucose?
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Correct answer: Photosynthesis
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Question 128
What is the term for the process by which a liquid turns into vapor due to an increase in temperature or pressure, specifically in the context of water?
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Correct answer: Vaporization
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Question 129
What is the name of the complex carbohydrate that serves as the main storage form of glucose in animals?
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Correct answer: Glycogen
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Question 130
What is the name of the process by which certain bacteria convert nitrogen gas from the atmosphere into ammonia, specifically in the context of the nitrogen cycle?
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Correct answer: Nitrogen fixation