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Water Properties and Biological Functions

Covers the physical and chemical properties of water and its essential role in living organisms

8 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Water has 

  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.
Question 2 Multiple Choice (Single Answer)

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

  1. 10-20 %
  2. 50 %
  3. 70 - 80%
  4. 90-95 %
Question 3 Multiple Choice (Single Answer)

In contact with water, phospholipids forms

  1. Rounded aggregates
  2. Monolayer
  3. Bilayer
  4. All of the above
Question 4 Multiple Choice (Single Answer)

Hydrogen bonds amongst water molecules have bestowed the property of 

  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.
Question 5 Multiple Choice (Single Answer)

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

  1. Photosynthesis and repiration
  2. Synthesis of polymers
  3. Hydrosis of biochemicals
  4. All of the above
Question 6 Multiple Choice (Single Answer)

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

  1. Glycogenolysis
  2. Hydrostatic skeleton
  3. Respiration
  4. Carbon assimilation
Question 7 Multiple Choice (Single Answer)

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

  1. $60 - 65$%
  2. $50 - 55$%
  3. $75 - 80$%
  4. $65 - 70$%
Question 8 Multiple Choice (Single Answer)

When a litre of water is introduced in human blood, 

  1. BMR decreases
  2. RBCs collapse and urine production increases
  3. BMR increases
  4. RBCs collapse and urine production decreases
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