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]
Which statement applies to a lysoso(g*0 hus1 1tfq8e txplmec 48bpgupoi.9?
A. It usually fuses with a vacuole in the cytoplasm.
B. It participates in anabolic reactions of cellular components.
C. It forms from vesicles budding off of the nucleus.
D. It is an organelle without a membrane that contains enzymes.
参考答案: A
本题详细解析:
Choice A is correct because a lysosome usually fuses with phagocytic vacuoles containing pathogens or cellular debris, or other vacuoles in the cytoplasm. The enzymes are then released from the lysosome into the vacuole to digest the contents. Choice B is incorrect because lysosomes contain digestive enzymes that break down cellular components, which involve catabolic reactions, not anabolic reactions. Choice C is incorrect because lysosomes form from vesicles budding off of the Golgi apparatus. Choice D is incorrect because lysosomes are membrane-bound organelles.
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