Man does not live by food alone. Water is vital to human health and fitness. Although it is not a
nutrient per se as are carbohydrates, fats, proteins, vitamins and minerals. It, in fact, is a key nutrient
as no life is possible without it. Whereas we can do for weeks without food, we cannot live without
water longer than a couple of days.
Water approximates 60% of the body weight of human adults. The total amount of water in a man
weighing 70 kilograms is approximately a little over 40 litres. It is an excellent solvent – more
substances are soluble in water than in any other liquid known so far. This makes it an ideal
constituent of the body fluids which sustain life supporting chemical reactions. It dissolves varied
products of digestion and transports them to the rest of the body. Likewise, it dissolves diverse
metabolic wastes and helps drain them out of the body. Besides, it performs a variety of functions,
some well known and well understood while others not so well appreciated yet vital. The no less
important role of water is to distribute/dissipate the body heat efficiently, thereby regulating the
body’s temperature. Water accomplishes this role ideally because it has thermal conductivity ensuring
rapid heat from one part to the other.
Above all, water has a high-specific heat, implying that it takes a lot of heat to raise the temperature of
water and likewise much heat must be lost to lower its temperature.
Drinking a lot of water is an inexpensive way to stay healthy. Water therapy: drinking a liter or so the
first thing in the morning is kidney-friendly.
The water regulation in the body is affected by hypothalamus in two ways i.e ,(i) by creating the
sensation of thirst which makes us drink water and (ii) by controlling the excretion of water and urine.
If water regulation fails, a medical emergency ensues.
1. Water is vital to human health and fitness because
(a) man does not live by food alone
(b) it is an excellent solvent
(c) we cannot survive for more than a couple of days without it
(d) it controls thirst and excretion of water as urine
2.Water is called a nutrient because
(a) it dissolves different products of digestion
(b) no life is possible without it
(c) it carries products to the rest of the body
(d) it raises temperature of the body
3.Water is an ideal constituent of the body fluids because
(a) it is an excellent solvent
(b) it dissolves metabolic wastes
(c) it drains waste out of the body
(d) it regulates expression of urine4. Water regulates body temperature efficiently as
(a) it circulates easily
(b) it has high specific heat
(c) it dissolves food easily
(d) it has high thermal conductivity
5. What does the author mean when he uses the word 'regulation' in the last paragraph?
(a) official rule
(b) control
(c) device for fair use
(d) worn or used as per rules
6. Which component is an inexpensive way to stay healthy?
(a) water (b) minerals (c) vitamins (d) proteins
7. Which word in para 2 conveys the opposite of ‘similar’?
(a) dissipate (b) accomplished (c) ideal (d) diverse
8. Which activity is considered as water therapy?
(a) Its high thermal conductivity ensuring rapid heat transfer from one part to another
(b) Drinking a little of water in the morning
(c) Drinking excess quantity of water
(d) All of the above
9. What is the percent of water content in a human body?
(a) 60% (b) 40% (c) 80% (d) 70%
10.Which word in para 2 is a synonym of 'maintain'?
(a) supporting (b) sustain (c) diverse (d) varied
Answers
answer of all questions please
Answer:
1 - Water is vital to human health and fitness because it is a key nutrient that no life is possible without. While food provides nutrients like carbohydrates, fats, proteins, vitamins, and minerals, water is an essential nutrient that plays a significant role in our survival.
Explanation:
2 - Water is called a nutrient because it is a key component that no life is possible without. While it may not provide the same nutrients as carbohydrates, fats, proteins, vitamins, and minerals, it carries products to the rest of the body, dissolves different products of digestion, and plays an important role in regulating the body's water balance.
3 - Water is an ideal constituent of body fluids because it is an excellent solvent that dissolves metabolic wastes and helps drain them out of the body. It regulates the excretion of urine, which is vital for maintaining the body's water balance.
4 - Water regulates body temperature efficiently because it has high specific heat, which means it takes a lot of heat to raise the temperature of the water, and likewise, much heat must be lost to lower its temperature.
5 - In the last paragraph, the author uses the word "regulation" to mean "control." The hypothalamus controls the body's water balance by creating the sensation of thirst, making us drink water, and controlling the excretion of water and urine. If this regulation fails, a medical emergency can ensue.
6 - Drinking a lot of water is an inexpensive way to stay healthy. Water therapy involves drinking a liter or so of water the first thing in the morning, which is kidney-friendly and helps regulate the body's water balance.
7 - The word in paragraph 2 that conveys the opposite of "similar" is "diverse." The author mentions that water is an excellent solvent, and more substances are soluble in water than in any other liquid known so far, making it a diverse solvent.
8 - Drinking a liter or so of water the first thing in the morning is considered water therapy, which is kidney-friendly and helps regulate the body's water balance. However, drinking an excessive quantity of water is not recommended and can be harmful.
9 - Water approximates 60% of the body weight of human adults. The total amount of water in a man weighing 70 kilograms is approximately a little over 40 liters.
10 - The word in paragraph 2 that is a synonym of "maintain" is "sustain." The author mentions that water is an ideal constituent of the body's fluids, sustaining life-supporting chemical reactions, and regulating the body's water balance.
To learn more about the concept please go through the links:
https://brainly.in/question/5886317
https://brainly.in/question/11367387
#SPJ3