本题目来源于试卷: Unity and Diversity A.4 Cell Structure，类别为 IB生物学
[单选题]
Which statements abouaf:6. ;i9 vnpw4 plmout es9:lkb9fik; chloroplasts and mitochondria support the endosymbiotic theory?i9k:fk 9lseb ;
A. Chloroplasts is Contain 70S ribosomes;Mitochondria is Contain cristae
B. Chloroplasts is Found in prokaryotes;Mitochondria is Contain 80S ribosomes
C. Chloroplasts is Have a single membrane;Mitochondria is Contain circular DNA
D. Chloroplasts is Contain 70S ribosomes;Mitochondria is Have a double membrane
参考答案: D
本题详细解析:
The endosymbiotic thhjs4hz(2hik 0pe+n7 z eory states that larger prokaryotes engulfed smaller prokaryotes, which were the ancestors of modern chloroplasts and mitochondria. The smaller prokaryotes were engulfed via endocytosis, so they have their original membrane asns7ij 4z hz ekh20(+hp well as the membrane of the larger prokaryote. Both chloroplasts and mitochondria have 70S ribosomes and a double membrane. Choice D is correct.Choice A is incorrect because the fact that mitochondria contain cristae is not due to the endosymbiotic theory. Choice B is incorrect because chloroplasts are not found in prokaryotes. Choice C is incorrect because chloroplasts have a double membrane.
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