Form and Function B.4 Organelles & Compartmentalization (id: a4e95083a)

本题目来源于试卷: Form and Function B.4 Organelles & Compartmentalization，类别为 IB生物学

[单选题]
The following micrograph shows part of a chloride ulcb+26j236iu dfvip4alwby 6 nn if7l-(*bucell. What statement is trwhbjf*cgt,1h s uag ub0*9( ;aue about the partsg**sf 9hacja0bu w 1;g,u(b th of the cell labelled X and Y?

A. Both X and Y are primarily composed of water and solutes.
B. Only X has a specialised function, and Y does not.
C. Only Y is an organelle, and X is not.
D. Both X and Y are found in prokaryotes.


参考答案:  C


本题详细解析:

Choice C is correct because Y is the nucleus and is an organelle, whereas X is the cytosol and not an organelle.

Choice A is incorrect because only X, the cytosol, is primarily composed of water and solutes, Y, the nucleus, primarily contains the DNA. Choice B is incorrect because Y, the nucleus, has a specialised function. Choice D is incorrect because Y, the nucleus, is not found in prokaryotes, but both X, the cytosol, and Y, the nucleus, are found in eukaryotes.

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