With reference to the role of water in the body, consider the following statements: 1. Water prevents the body from absorbing nutrients from food. 2. It helps in throwing out some wastes from the body as urine and sweat. 3. The body gets water from liquids drunk as well as from cooked food items. Which of the statements given above are correct?

The correct option is (c). Explanation Water is a fundamental component of the human body, acting as a universal solvent that facilitates essential physiological processes including digestion, absorption, circulation, and excretion. - Statement 1 is Incorrect: Water is crucial for the digestion and absorption of food. It acts as a medium in which digestive enzymes function and helps dissolve nutrients so they can pass through the intestinal wall into the bloodstream. It does not prevent the body from absorbing nutrients; rather, it facilitates the process. - Statement 2 is Correct: Water plays a vital role in excretion. It dissolves metabolic wastes and toxic substances, enabling their removal from the body in the form of urine (via the kidneys) and sweat (via the skin). This process also aids in thermoregulation. - Statement 3 is Correct: The body acquires water from multiple sources. The primary source is liquids consumed directly, such as water, milk, tea, and juices. Additionally, many cooked food items (such as vegetables, dal, and curries) and raw fruits contain a significant percentage of water, contributing to the body's total hydration. Key Takeaway: Water is essential for dissolving and transporting nutrients for absorption and for the excretion of metabolic wastes through urine and sweat.

With reference to the role of water in the body, c... - NCERT Class 6 Science MCQ

Solution

The correct option is (c).

Explanation

Water is a fundamental component of the human body, acting as a universal solvent that facilitates essential physiological processes including digestion, absorption, circulation, and excretion.

Statement 1 is Incorrect: Water is crucial for the digestion and absorption of food. It acts as a medium in which digestive enzymes function and helps dissolve nutrients so they can pass through the intestinal wall into the bloodstream. It does not prevent the body from absorbing nutrients; rather, it facilitates the process.
Statement 2 is Correct: Water plays a vital role in excretion. It dissolves metabolic wastes and toxic substances, enabling their removal from the body in the form of urine (via the kidneys) and sweat (via the skin). This process also aids in thermoregulation.
Statement 3 is Correct: The body acquires water from multiple sources. The primary source is liquids consumed directly, such as water, milk, tea, and juices. Additionally, many cooked food items (such as vegetables, dal, and curries) and raw fruits contain a significant percentage of water, contributing to the body's total hydration.

Key Takeaway: Water is essential for dissolving and transporting nutrients for absorption and for the excretion of metabolic wastes through urine and sweat.

NCERT Class 6 Science — Chapter 2: Components of food

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