Tag: sources of water

Questions Related to sources of water

Water has 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. High surface tension and low thermal conductivity.

  2. Low surface tension and low thermal conductivity.

  3. High surface tension and high thermal conductivity.

  4. Low surface tension and high thermal conductivity.

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Correct Option: C

Percentage of water in the body of a living being like human is 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. 10-20 % 

  2. 50 % 

  3. 70 - 80% 

  4. 90-95 % 

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Correct Option: C

In contact with water, phospholipids forms

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Rounded aggregates

  2. Monolayer

  3. Bilayer

  4. All of the above

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Correct Option: C

Hydrogen bonds amongst water molecules have bestowed the property of 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Liquid with ability to flow.

  2. High velocity, high specific heat and high heat of vaporisation.

  3. High boiling point and low freezing point.

  4. All of the above.

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Correct Option: D

In a living systems, water is involved as a chemical in

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Photosynthesis and repiration

  2. Synthesis of polymers

  3. Hydrosis of biochemicals

  4. All of the above

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Correct Option: D

Water is an end product in which of the following process?

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Glycogenolysis

  2. Hydrostatic skeleton

  3. Respiration

  4. Carbon assimilation

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Correct Option: C

Living cell contains $60 - 75$% water. Water present in human body is

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. $60 - 65$%

  2. $50 - 55$%

  3. $75 - 80$%

  4. $65 - 70$%

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Correct Option: D
Explanation:
Our cells are made of 60-75% water, hence most of the enzymes and protein molecules, our genetic material, all are water soluble and are evolved in a way to co-exist in water surrounding environment. Thus our proteins are folded in a way where the hydrophobic amino acid residues are folded inside the protein and hydrophilic residues face the hydrated outer environment. Similarly our DNA, RNA are all water soluble. Since the structural and functional unit of our body, consists of 60-75% of water hence, the entire human body is expected to have similar water content.
So, the correct answer is '65−70%'.

When a litre of water is introduced in human blood, 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. BMR decreases

  2. RBCs collapse and urine production increases

  3. BMR increases

  4. RBCs collapse and urine production decreases

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Correct Option: B

The pipes which carry the waste waters from the houses is known as

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. Waste lines

  2. Drainage lines

  3. Water lines

  4. Wastewater lines

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Correct Option: B
Explanation:

Drainage lines are artificial passageway used to carry the waste water from the houses. It then carries the waste water to the municipal sewage system where it is treated before discharging in water body. Water lines are artificial passageway used to carry the water to the houses.  

Thus, the correct answer is option B.

Sewage water is freshened up by

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. Boiling

  2. Chemical treatment

  3. Biological treatment

  4. Both B and C

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Correct Option: D