What percentage of water is found in brain cells?
Correct answer: C. 85
- A. 50
- B. 80
- C. 85
- D. 90
Explanation
85 percent of brain cells consist of water. Water is essential for the brain's proper functioning, providing a medium for biochemical reactions, aiding in the transport of nutrients and waste, and helping maintain cellular structure and electrical activity. Its high content ensures that neurons and glial cells can perform their complex signaling and metabolic tasks efficiently. Consequently, the brain's water content is crucial for cognition, coordination, and overall neurological health.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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