Question

A vast proportion of our body's weight is made up of}

• A. bones
• B. water
• C. organs
• D. skin, tissues and organs

Hint:

Remember: In an average healthy adult, water constitutes about 60% of body weight. This percentage is higher in infants ($\sim$75%) and lower in elderly individuals ($\sim$50–55%).

Answer 1

The Correct Option is B

The question asks about the component that makes up a large proportion of the body's weight. To address this, let's go through the options one by one:

1. Bones: Bones do make a significant contribution to body weight, but they do not constitute the majority. They are primarily composed of minerals like calcium and phosphorus.
2. Water: Water is indeed the correct answer. Approximately 60-70% of an adult human body is composed of water. This includes water in cells, tissues, and blood. Water is crucial for various physiological processes such as temperature regulation, transportation of nutrients, and removal of wastes.
3. Organs: Organs, though essential, comprise less weight than water. They are complex structures containing various tissues and fluids, but individually they do not account for a vast majority of the body's weight.
4. Skin, tissues, and organs: This option groups several components together, which collectively contribute significantly to body weight. However, water is integral to how all these function and together still do not outweigh the body's water content.

Conclusion: The correct answer is water because it constitutes the majority of the body's weight, playing an essential role in almost all bodily functions. Understanding the composition of the human body is important for various fields, including medicine and biology.