Tag: biology

Questions Related to biology

Growth occurs when 

biology concept of life living organism living vs nonliving living vs non living

  1. Anabolism is higher than catabolism

  2. Catabolism is higher than anabolism

  3. Protoplasmic synthesis is more than apoplasmatic synthesis

  4. Apoplasmatic synthesis is more than protoplasmic synthesis

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Correct Option: A
Explanation:

Growth occurs when the anabolic (Constructive activities) exceed the catabolic activities (destructive activities).

So the correct option is A.

Growth occurs when

biology concept of life living organism living vs nonliving living vs non living

  1. Anabolism is higher than catobolism

  2. Catabolism is higher than anabolism

  3. Protoplasmic synthesis is more than apoplasmatic synthesis

  4. Apoplasmatic synthesis is more than protoplasmic synthesis

Show answer
Correct Option: A
Explanation:

The irreversible permanent increase in size, volume or weight of the body is called Growth. It is the cumulative effect of cell division, cell elongation and cell differentiation. During growth, in the cells, rate of metabolism is high. So, synthesis and breakdown of biomolecules takes place. In this synthesis of biomolecules is higher than breakdown of biomolecules. So the rate of anabolism is greater than catabolism.

So, correct option is ‘Anabolism is higher than catabolism’.

Substances synthesised during growth are

biology concept of life living organism living vs nonliving living vs non living

  1. Protoplasmic

  2. Apoplasmic

  3. Protoplasmic and apoplasmatic

  4. Nucleic acids

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Correct Option: C
Explanation:

The irreversible permanent increase in size, volume or weight of the body is called Growth. During synthesis of protoplasmic and non protoplasmic substances takes place. Synthesis of the protoplasmic substances is called protoplasmic growth and synthesis of non protoplasmic  substances(cell wall) is called apoplasmic growth.

So, the correct option is ‘Protoplasmic and apoplasmic’

Generally growth and reproduction are

biology concept of life living organism living vs nonliving living vs non living

  1. Mutually inclusive events

  2. Mutually exclusive events

  3. Either a or b

  4. None

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Correct Option: A
Explanation:

Increase in the size of an organ or body is called growth, whereas the formation of progeny from a parent is called reproduction. So in a living organism growth and reproduction simultaneously occur.

So, the correct answer is ‘Mutually inclusive events ’.

The growth of the root and stem in length with the help of apical meristem is called _________

biology concept of life living organism living vs nonliving living vs non living

  1. Primary growth

  2. Secondary growth

  3. Secondary and primary growth

  4. Reproductive growth

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Correct Option: A
Explanation:

Primary growth is the increase in the length of root and shoot. It is the result of cell division of apical meristem. 


So, the correct option is 'Primary growth'.

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