Tag: biology

Questions Related to biology

The ultimate source of our energy is 

origin of universe universe and organic evolution biology

  1. Sun

  2. Electricity

  3. Wind

  4. Plants

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Correct Option: A
Explanation:

The sun is called the ultimate source of energy because it is the source of almost all energies of the earth. Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis. Animals eat plants and use that same chemical energy for all their activities.

So, the correct answer is 'Sun'.

Which of the following gave the term biosphere?

origin of universe universe and organic evolution biology

  1. Ernst Haeckel

  2. Aurthur Tansley

  3. Elton

  4. Eduard Suess

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Correct Option: D
Explanation:

Eduard Suess coined the term biosphere in 1875. According to him, bio referred to the life and sphere referred to everything around. Hence, biosphere includes atmosphere, lithosphere and geosphere.

Thus, the correct answer is option D.

Lithosphere is made up of 

origin of universe universe and organic evolution biology

  1. Crust

  2. Mantle

  3. Core

  4. Both A and B

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Correct Option: D
Explanation:

The biosphere is the global sum of all ecosystems. It includes lithosphere, atmosphere and hydrosphere. Earth's lithosphere includes the crust and the uppermost mantle, which constitute the hard and rigid outer layer of the Earth.

Thus, the correct answer is option D.

Consider the following statements
(a) In prokaryotic cell, an outgrowth of plasma membrane into cell is called polysome
(b) SER is major site for glycoprotein synthesis
(c) RuBisCO is most abundant protein of biosphere
(d) Mitochondria, chIoroplasts and peroxisomes are not part of endomembrane system. Of the above statements.

origin of universe universe and organic evolution biology

  1. c and d alone are correct

  2. a and b alone are correct

  3. b and c alone are correct

  4. a and d alone are correct

  5. b and d alone are correct.

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Correct Option: A

Tiger belongs to which of the following biotic components of the environment?

origin of universe universe and organic evolution biology

  1. Decomposers

  2. Carnivores

  3. Producers

  4. All of the above

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Correct Option: B

Which of the following components of the environment includes the plants?

origin of universe universe and organic evolution biology

  1. Producer

  2. Decomposer

  3. Consumer

  4. None of the above

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Correct Option: A

Total number of stars present in universe is :

origin of universe universe and organic evolution biology

  1. $10^{12} $

  2. $10^{16} $

  3. $10^{19} $

  4. $10^{22} $

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Correct Option: D

On an average a galaxy has stars :

origin of universe universe and organic evolution biology

  1. 1000 million

  2. 100,000 million

  3. 1,00,000 million

  4. 1000,000 million

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Correct Option: B

The Part of earth and atmosphere supporting life is _____________.

origin of universe universe and organic evolution biology

  1. Biosphere

  2. Biome

  3. Ecotone

  4. Biota

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Correct Option: A
Explanation:

The entire inhabited part of the earth and its atmosphere (including the living and non living components) forms the biosphere.

So, the correct answer is 'Biosphere'

The farthest planet of solar system is :

origin of universe universe and organic evolution biology

  1. Uranus

  2. Staurn

  3. Jupiter

  4. Neptune

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Correct Option: D