本题目来源于试卷: Unity and Diversity A.1 Water，类别为 IB生物学
[单选题]
Which of the following is qt nwwym0m)cdv 8;b(9nex*;pi;0f mexot a reason that scientists look for the presence of water on planets as a sign of extraterrestrixmpx;ee ;*f0ial life?
A. Water is a necessary resource for most living organisms
B. Most enzymes catalyse reactions in solutions containing water
C. Water molecules can stick to each other
D. Water is a universal solvent
参考答案: C
本题详细解析:
The ability of water molecules to stick to each other, known as cohesion, is relevant to its behaviour and interactions but is not a direct reason for scientists to look for water as a sign of extraterrestrial life. Therefore Choice C is the correct answer. Choice A is incorrect, as water being necessary for most living organisms is why scientists look for water as a sign of extraterrestrial life. Choice B is incorrect as enzymes, which are biological catalysts, typically function within aqueous environments. Water's unique properties enable it to serve as a solvent for chemical reactions, which are crucial for the biochemical processes of living organisms. Choice D is incorrect as, due to the polarity of water, it can dissolve a wide range of substances, allowing chemical reactions to occur in water. This property is, therefore, relevant to the support of life processes.
| 
