Percentage of water in brain cells is_______?
Correct answer: C. 85%
- A. 20%
- B. 65%
- C. 85%
- D. 89%
Explanation
Brain tissue contains a high proportion of water, commonly given in introductory biology as about 85%, because water forms the medium for cellular reactions and transport. Students may choose 65%, a value associated with the approximate water content of the whole human body rather than brain cells.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Biological Importance of Water
Water supports life through its polarity, hydrogen bonding and ability to dissolve ionic and polar substances. Its high specific heat, heat of vaporization, cohesion, adhesion and incompressibility help regulate temperature, transport materials and maintain structure, while hydrolysis and osmosis depend directly on water.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Biological Importance of Water questions
Oxygen accounts for __________ percent of totals human body mass?
______________ of earth surface is covered with water?
According to cohesion-tension theory, tension is created by__________________?
All of the following are elements that plants need in very small amounts except___________?
The property of water molecule which results in hydrogen bonding is
Due to its high heat of vaporization water plays important role in living organism as: