35 lines
1.5 KiB
JSON
35 lines
1.5 KiB
JSON
[
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{
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"question": "The major difference between cartilage and bone is that cartilage",
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"subject": "high_school_biology",
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"choices": [
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"is a part of the skeletal system",
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"is composed of collagen and salts",
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"lacks blood vessels and nerves",
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"secretes a matrix"
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],
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"answer": 2
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},
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{
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"question": "Which of the following best explains why lignin is important to the evolutionary success of land plants?",
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"subject": "high_school_biology",
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"choices": [
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"Lignin provides structural support, allowing plants to grow tall.",
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"Lignin stimulates spore formation, leading to gametogenesis.",
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"Lignin supplies the developing embryo with essential nutrients, enabling its growth.",
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"Lignin supplements the absorption of light by chlorophyll, increasing photosynthetic output."
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],
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"answer": 0
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},
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{
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"question":"A mutation in a bacterial enzyme changed a previously polar amino acid into a nonpolar amino acid. This amino acid was located at a site distant from the enzyme\u2019s active site. How might this mutation alter the enzyme\u2019s substrate specificity?",
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"subject":"high_school_biology",
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"choices":[
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"By changing the enzyme\u2019s pH optimum",
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"By changing the enzyme\u2019s location in the cell",
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"By changing the shape of the protein",
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"An amino acid change away from the active site cannot alter the enzyme\u2019s substrate specificity."
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],
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"answer":2
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}
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] |