Science and Environment Quiz: Day 105

March 4, 2023

Which of the following is not correct?

(A) Robert brown discovered the cell.
(B) Schleiden and Schwann formulated cell theory.
(C) Leeuwenhoek first saw & described a live cell
(D) A unicellular organism carries out its life activities within a single cell

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Answer : A

Consider the following statement :
1. Cells of all living organisms have a nucleus.
2. In prokaryotes, there are no membrane bound organelles.
3. Both animal and plant cells have a well-defined cell wall.
Which of the statement is/are incorrect:

(A) Only 1 and 3
(B) Only 2 and 3
(C) Only 1 and 2
(D) None of these

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Answer : A

Consider the following statement :
1 Prokaryotes are unicellular while eukaryotes are multicellular.
2. Cell membrane is fully permeable
3. Chromosomes of eukaryotes contain histones while that of prokaryotes lack histones .
Which of the statement is/are correct:

(A) Only 1
(B) Only 2 and 3
(C) Only 3
(D) All of these

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Answer : C

Find the correct match

(A) Smallest cell - mycoplasma
(B) Largest isolated single cell – ostrich egg cell
(C) Longest cell - nerve cell
(D) All of these

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Answer : D

Non membrane organelle which help in cell division is

(A) Centriole
(B) Ribosome
(C) Nucleolus
(D) Both (1) & (2)

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Answer : A

Which of the following cells are specialised cells that can be transformed into any kind of cells.

(A) Nerve
(B) Stem
(C) Heart
(D) Bone

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Answer : B

The erythrocyte is placed in ______________ solution which has lesser concentration of solutes and greater concentration of water than in the cytoplasm.

(A) Hypotonic
(B) Hypertonic
(C) Neutral
(D) Acidic

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Answer : A

The infoldings of the inner membrane of mitochondria are known a

(A) Stroma
(B) Grana
(C) Cristae
(D) Oxysome

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Answer : C

A plant cell wall is mainly composed of

(A) Protein
(B) Cellulose
(C) Lipid
(D) Starch

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Answer : B

Ribosomes are the site of

(A) Photosynthesis
(B) Respiration
(C) Protein synthesis
(D) Absorption

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Answer : C

Consider the following statement regarding Forest Right Act 2006.
1. Nodal Agency for the implementation is Ministry of Environment, Forest and Climate Change.
2. Gram Sabha has been designated as the competent authority for initiating the process of determining Forest rights.
3. FRA is not applicable in National Parks, Wildlife Sanctuaries, and Tiger Reserves
Choose the correct statement(s):

(A) Only 1
(B) Only 2
(C) Only 2 and 3
(D) All of these

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Answer : B

If a particular plant species is placed under Schedule VI of The Wildlife Protection Act, 1972, what is the implication?

(A) A licence is required to cultivate that plant.
(B) Such a plant cannot be cultivated under any circumstances.
(C) It is a Genetically Modified crop plant.
(D) Such a plant is invasive and harmful to the ecosystem.

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Answer: A

Which of the following has/have shrunk immensely/dried up in the recent past due to human activities?
1. Aral Sea
2. Black Sea
3. Lake Baikal
Select the correct answer using the code given below:

(A) 1 only
(B) 2 and 3 only
(C) 2 only
(D) 1 and 3 only

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Answer :A

If you want to see gharials in their natural habitat, which one of the following is the best place to visit?

(A) Bhitarkanika Mangroves
(B) Chambal River
(C) Pulicat Lake
(D) Deepor Bed

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Answer : B

The term ‘Intended Nationally Determined Contributions’ is sometimes seen in the news in the context of

(A) Pledges made by the European countries to rehabilitate refugees from the war-affected Middle East
(B) Plan of action outlined by the countries of the world to combat climate change
(C) Capital contributed by the member countries in the establishment of Asian Infrastructure Investment Bank
(D) Plan of action outlined by the countries of the world regarding Sustainable Development Goals

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Answer : B