本题目来源于试卷: Interaction & Interdependence C.2 Cell Respiration，类别为 IB生物学
[单选题]
Which statement(s) are correhkwzc.+ i7 .ir :uvl(qct in explaining why lipids are used as a long-term .wziq c 7h:ku(+.ivr leyx9e)vfn0 c -energy store instead of carbohydrates? 0y-)fev 9nxce
I.Lipids contain more energy per gramme than carbohydrates
II.Lipids are insoluble, whereas carbohydrates are not
III.Lipids contain less oxygen than carbohydrates
A. I only
B. I and II only
C. II and III only
D. I, II and III
参考答案: D
本题详细解析:
Statement I is correct, as lipids transfer around twice as much energgu u+;z;aj yy4y as carbohydrates during respiration. Statement II is correct as lipids are insoluble, so they can be stored without afau yuyj;4+z ;gfecting the osmotic balance of tissues, whereas carbohydrates are soluble. Statement III is correct, as lipids contain less oxygen than carbohydrates, allowing them to store more energy in more carbon-hydrogen bonds. Choice D is correct.
Choices A, B and C are incorrect as they do not include all three statements.
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