Continuity and Change D.6 Water Potential (id: 1fcb898a0)

本题目来源于试卷: Continuity and Change D.6 Water Potential，类别为 IB生物学

[单选题]
The image below shows red bl/jaj- vz2v .dbk8h 6tvood cells placed in three dif7s6yep*mr*z+y m9rui ferent solutions as seeys my6+* p7eu*riz r9mn under the light microscope. Which type of solution were the cells shown in micrograph A most likely placed in?

A. A hypertonic solution
B. A hypotonic solution
C. An isotonic solution
D. Distilled water


参考答案:  A


本题详细解析:

Red blood cells placed in a hypertonic solution shrivel or become crenated, as shown in micrograph A. Plant cells undergo plasmolysis.

Red blood cells placed in a hypotonic solution (Choice B) or distilled water (Choice D) would swell and eventually burst, as shown in micrograph C. Cells placed in an isotonic solution (Choice C) would show no change in appearance, as shown in micrograph B.

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