RC: Health and Medicine - 2 | Verbal Ability (VA) & Reading Comprehension (RC) - CAT PDF Download

Passage

Direction: The passage below is accompanied by a set of questions. Choose the best answer to each question.
Water, a seemingly mundane substance, is actually the elixir of life. It is not a nutrient in the traditional sense, like carbohydrates or proteins, yet it is fundamental to human health and survival. An adult human body is composed of nearly 60% water, a testament to its importance. Water's roles are multifaceted: it is an unparalleled solvent, a transporter of nutrients, a medium for waste elimination, and a regulator of body temperature.
The human body can endure weeks without food, but a mere couple of days without water is often fatal. This stark contrast underscores water's critical role. Its unique properties, such as high specific heat and thermal conductivity, make it an efficient agent for temperature regulation. Water therapy, which involves consuming substantial amounts of water upon waking, is celebrated for its benefits, particularly for kidney health.
The hypothalamus, a small but crucial part of the brain, oversees the body's water regulation. It triggers thirst to prompt water intake and manages water excretion through urine. Any disruption in this regulation can precipitate a medical emergency, highlighting the delicate balance of water in our bodies.
Q1: According to the passage, which of the following statements is NOT true about water? 
(a) It is considered a nutrient like carbohydrates.
(b) It constitutes about 60% of an adult human body.
(c) It acts as a solvent and a transporter of nutrients.
(d) It plays a role in regulating body temperature. 

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Q2: The passage mentions 'water therapy'. What is its primary benefit?
(a) It aids in digestion.
(b) It is beneficial for kidney health.
(c) It helps in weight loss.
(d) It improves skin health.

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Q3: What is the role of the hypothalamus in water balance?
(a) It digests food.
(b) It controls thirst and urine excretion.
(c) It regulates body temperature.
(d) It transports nutrients.

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Q4: The passage suggests that a lack of water can lead to death more quickly than a lack of food because:
(a) Water is a source of energy.
(b) Water is involved in more bodily processes than food.
(c) The body can store food but not water.
(d) Water is a nutrient, whereas food is not.

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