Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

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

Growth occurs when 

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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

So the correct option is A.

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

Growth occurs when

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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’.

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

Substances synthesised during growth are

  1. Protoplasmic

  2. Apoplasmic

  3. Protoplasmic and apoplasmatic

  4. Nucleic acids
Reveal answer Fill a bubble to check yourself
C Correct answer
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’

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

Generally growth and reproduction are

  1. Mutually inclusive events

  2. Mutually exclusive events

  3. Either a or b

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
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 ’.

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

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

  1. Primary growth

  2. Secondary growth

  3. Secondary and primary growth

  4. Reproductive growth
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

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.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water is unique because it possesses both high surface tension (due to hydrogen bonding) and high thermal conductivity compared to many other common liquids.

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

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.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hydrogen bonds in water contribute to high specific heat, high heat of vaporization, high boiling point, and low freezing point, all of which are essential for biological life.

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

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
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water is a reactant in photosynthesis, a product in respiration, a reactant in hydrolysis (breaking down polymers), and involved in the synthesis of polymers (dehydration synthesis).