Tag: universe and organic evolution

Quizzes (6) Questions (54)

Questions Related to universe and organic evolution

Multiple choice origin of universe universe and organic evolution biology

Lithosphere is made up of 

  1. Crust

  2. Mantle

  3. Core

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

Multiple choice origin of universe universe and organic evolution biology

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.

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

RuBisCO is the most abundant protein on Earth, and mitochondria, chloroplasts, and peroxisomes are indeed excluded from the endomembrane system because they are not derived from the endoplasmic reticulum. Statement (a) is false because mesosomes are the plasma membrane outgrowths in prokaryotes, and (b) is false because the rough ER, not the smooth ER, is the site for protein synthesis.

Multiple choice origin of universe universe and organic evolution biology

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

  1. Decomposers

  2. Carnivores

  3. Producers

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tigers are animals that consume other animals for energy, classifying them as carnivores. They are a type of consumer, not a producer or decomposer.

Multiple choice origin of universe universe and organic evolution biology

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

  1. Producer

  2. Decomposer

  3. Consumer

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plants are autotrophs that produce their own food through photosynthesis, making them the primary producers in an ecosystem.

Multiple choice origin of universe universe and organic evolution biology

Total number of stars present in universe is :

  1. $10^{12} $
  2. $10^{16} $
  3. $10^{19} $
  4. $10^{22} $
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Scientific estimates of the number of stars in the observable universe are typically in the range of 10^22 to 10^24.

Multiple choice origin of universe universe and organic evolution biology

On an average a galaxy has stars :

  1. 1000 million

  2. 100,000 million

  3. 1,00,000 million

  4. 1000,000 million
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A typical galaxy like the Milky Way is estimated to contain roughly 100 billion stars, which is 100,000 million.

Multiple choice origin of universe universe and organic evolution biology

The Part of earth and atmosphere supporting life is _____________.

  1. Biosphere

  2. Biome

  3. Ecotone

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

Multiple choice origin of universe universe and organic evolution biology

Inferior planets are :

  1. Farthest from Sun

  2. In orbits outside that of earth

  3. In orbits inner that of earth

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

Inferior planets are those whose orbits lie within the orbit of the Earth, specifically Mercury and Venus.