NEET Biology Biological Classification MCQs Set 08

Practice MCQs for NEET Biology Biological Classification

Explore reliable objective questions for Biological Classification tailored for NEET learners. Utilizing these Biology multiple-choice formats ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.

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Access the complete set of multiple-choice questions for Biological Classification below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official NEET textbooks.

Multiple Choice Questions

Question 1: Viruses posses
(a) Ribosomes to synthesize protein
(b) Organelles for its vital mechanisms
(c) Either DNA or RNA
(d) None of these
Show Answer & Explanation

Answer: (c) Either DNA or RNA

Explanation:
1. Viruses – Either RNA or DNA.

Question 2: Enzymes are generally not found in
(a) Fungi
(b) Algae
(c) Virus
(d) Cyanobacteria
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Answer: (c) Virus

Explanation:
1. Enzymes are generally absent in viruses.

Question 3: Tobacco mosaic virus is elongated rod like with size
(a) 300 × 10 nm
(b) 300 × 5 nm
(c) 300 × 18 nm
(d) 700 × 30 nm
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Answer: (c) 300 × 18 nm

Explanation:
1. TMV . Elongated rod-like . 300 × 18 nm size.

Question 4: Which one of the following statements about viruses is correct ?
(a) Viruses possess their own metabolic system
(b) All viruses contain both RNA and DNA
(c) Viruses are obligate parasites
(d) Nucleic acid of viruses is known as capsid
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Answer: (c) Viruses are obligate parasites

Explanation:
1. Viruses – Obligate parasites.

Question 5: Which of the following statements is not true for retroviruses?
(a) DNA is not present at any stage in the life cycle of retroviruses
(b) Retroviruses carry gene for RNA-dependent DNA polymerase
(c) The genetic material in mature retroviruses is RNA
(d) Retroviruses are causative agents for certain kinds of cancer in man
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Answer: (a) DNA is not present at any stage in the life cycle of retroviruses

Explanation:
1. Reterovirus Reverse transcriptase RNA DNA.

Question 6: The causative agent of mad-cow disease is a
(a) Virus
(b) Bacterium
(c) Prion
(d) Worm
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Answer: (c) Prion

Explanation:
1. Prion ( = Proteins) Mad cow disease Kuru disease Only in animals Creutz Feldt Jakob disease.

Question 7: Which one of the following statement about lichens is wrong?
(a) These grow very rapidly (2 cm per day)
(b) They show fungal and algal symbiotic relationships
(c) Some of its species are eaten by reindeers
(d) These are pollution indicators
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Answer: (a) These grow very rapidly (2 cm per day)

Explanation:
1. Lichens grow very slowly.

Question 8: Which of the following is the use of lichens in case of pollution?
(a) They promote pollution
(b) Lichens are not related with pollution
(c) They treat the polluted water
(d) They act as bioindicators of pollution
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Answer: (d) They act as bioindicators of pollution

Explanation:
1. Lichens – Bioindicator of air pollution.

Question 9: There exists a close association between the alga and the fungus within a lichen. The fungus
(a) Provides protection, anchorage and absorption for the algae
(b) Provides food for the alga
(c) Fixes the atmospheric nitrogen for the alga
(d) Releases oxygen for the alga
Show Answer & Explanation

Answer: (a) Provides protection, anchorage and absorption for the algae

Explanation:
1. Lichen Fungus Algae (Protection, anchorage (Food for fungi) & absorption).

Question 10: The sexual reproduction is absent in
(a) Spirogyra
(b) Nostoc
(c) Ulothrix
(d) Volvox
Show Answer & Explanation

Answer: (b) Nostoc

Explanation:
1. Sexual reproduction is absent in prokaryotes e.g., Nostoc.

Question 11: Which one of the following fungi contains hallucinogens?
(a) Morchella esculenta
(b) Amanita muscaria
(c) Neurospora sp.
(d) Ustilago sp.
Show Answer & Explanation

Answer: (b) Amanita muscaria

Explanation:
1. Hallucinogen – Amanita muscaria.

Question 12: Anoxygenic photosynthesis is characteristic of
(a) Rhodospirillum
(b) Spirogyra
(c) Chlamydomonas
(d) Ulva
Show Answer & Explanation

Answer: (a) Rhodospirillum

Explanation:
1. Anoxygenic phototrophs – Rhodospirillum.

Question 13: A location with luxuriant growth of lichens on the trees indicates that the
(a) Trees are very healthy
(b) Trees are heavily infested
(c) Location is highly polluted
(d) Location is not polluted
Show Answer & Explanation

Answer: (d) Location is not polluted

Explanation:
1. Lichens – Bioindicator of pollution – Pollutant free environment (luxuriant growth of lichens on the trees).

Question 14: Assertion (A): Lichens do not grow in polluted area having SO2.
Reason (R): Lichens secrete carbonic acid and oxalic acid on barren rocks.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.

Explanation:
1. Both (A) & (R) are correct.

Question 15: Assertion (A): Secondary mycelium of Agaricus is binucleated.
Reason (R): Secondary mycelium is formed by somatogamy of primary mycelium.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.

Explanation:
1. This option, Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion., is the one that agrees with the standard NCERT facts for this topic.

Question 16: Assertion (A): Phycobiont is dominant parent in lichens.
Reason (R): Algal component in the dual organisms can be eukaryotic only.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (d) Both Assertion and Reason are false.

Explanation:
1. Mycobiont is dominant parent in lichens.
2. Fungi is eukaryote but algae can be prokaryote or eukaryote.

Question 17: Assertion (A): Unicellular eukaryotes are included in Monera.
Reason (R): Unicellular eukaryotes have 70S cytoribosomes.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (d) Both Assertion and Reason are false.

Explanation:
1. Unicellular eukaryotes are in protista.

Question 18: Assertion (A): Slime moulds form fruiting bodies under unfavourable conditions.
Reason (R): Naked plasmodium is formed during favourable conditions.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.

Explanation:
1. Both (A) & (R) are correct.

Question 19: Assertion (A): MLOs are pleomorphic and non-motile monerans.
Reason (R): They are insensitive to antibiotics like penicillin.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.

Explanation:
1. Both (A) & (R) are correct.

Question 20: Assertion (A): Holophytic protistans are important phytoplanktons and they contribute 80% of the total photosynthesis.
Reason (R): They lack chemosynthetic nutrition and utilize non sulphur organic compound as the source of electron and proton in carbon assimilation.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (c) Assertion is true but the Reason is false.

Explanation:
1. Holophytic protistans – 80% of total photosynthesis – Source of electron is H2O.

Question 21: Assertion (A): Sexual spores in pink mould are meiospores produced endogenously.
Reason (R): They develop flask shaped fruiting body in sexual life cycle.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.

Explanation:
1. This option, Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion., is the one that agrees with the standard NCERT facts for this topic.

Question 22: Assertion (A): Viroids are not included in five kingdom system.
Reason (R): They are non-cellular.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.

Explanation:
1. This option, Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion., is the one that agrees with the standard NCERT facts for this topic.

Question 23: Assertion (A): Viruses which infect animals generally possess ssRNA or dsRNA or dsDNA.
Reason (R): Phytophagineae generally contain dsDNA.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) Both Assertion and Reason are false.
Show Answer & Explanation

Answer: (c) Assertion is true but the Reason is false.

Explanation:
1. Phytophginae generally contain ssRNA.

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Multiple Choice Questions (MCQs) for NEET Biology Biological Classification

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