Unity and Diversity A.4 Cell Structure (id: d19828eb6)

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]
The electron micrograpw3w b,rmo +*sgh shor)+:r n9lqf2b+howp mws an animal cell.

A.
B.
C.
D.


参考答案:  D


本题详细解析:
Choice D has visible cristae and is ovalwtjl)vbbh, a * 3y-(ul,,a r(ar,qlwl-shaped; it is a mitochondrion, it evolved as a consequencelajwlh-, *ya,l,,( lrvt q)au(wb3rb of endosymbiosis.

Choice A is the cytoplasm, Choice B is the nucleus, and Choice C is a vacuole. Only the mitochondria and chloroplasts' origin are explained by endosymbiotic theory.

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