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 statement provides evidence for theusu4q3 fkx4fg0wu y,h;hpt (5 endosyma 36-hdhnmrumy qm1 e155 qhsz;c0it.biotic theory?
A. Phospholipids readily form bilayers.
B. Chloroplasts possess a double membrane.
C. RNA is self-replicating.
D. Mitochondria possess a single membrane.
参考答案: B
本题详细解析:
The endosymbiotic theory states that larger prokaryotes engulfed smala 1a4j:uvak(fdy(+ y wler prokaryotes, which were the ancestors of modern chloroplasts and mitochondria. The smaller prokaryotes wj4(+v( fa:1a kuydyw aere engulfed via endocytosis, so they have their original membrane as well as the membrane of the larger prokaryote. Choice B is correct.Choice A is incorrect because it provides evidence for the evolution of plasma membranes not endosymbiotic theory. Choice C is incorrect because it provides evidence for the mechanism of inheritance. Choice D is incorrect because mitochondria have a double membrane.
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