[单选题]
The following micrograph shows part of a chloride cell. What state
cg:y9yl 3 5 6c aw,shbeu1l4rhment is true
nh ii12vv r7+p about the parts of the cell labelled X
p+1iihvvr7 n2and 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.
