NEET Biology Biological Classification MCQs Set 06

Download NEET 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.

Chapter-wise Objective Questions: Biological Classification

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: Ergot of rye is caused by a species of
(a) Claviceps
(b) Phytophthora
(c) Uncinula
(d) Ustilago
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Answer: (a) Claviceps

Explanation:
1. Ergot of rye – Clavicep purperia.

Question 2: The thalloid body of a slime mould (Myxomycetes) is known as
(a) Protonema
(b) Plasmodium
(c) Fruiting body
(d) Mycelium
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Answer: (b) Plasmodium

Explanation:
1. Plasmodium . Thalloid body of slime mould . Myxomycetes.

Question 3: Curing of tea leaves is brought about by the activity of:
(a) Bacteria
(b) Mycorrhiza
(c) Viruses
(d) Fungi
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Answer: (a) Bacteria

Explanation:
1. To improve the flavour and taste in tea by bacteria called curing of tea leaves.

Question 4: What is common about Trypanosoma, Noctiluca, Monocystis and Giardia ?
(a) These are all unicellular protists
(b) They have flagella
(c) They produce spores
(d) These are all parasites
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Answer: (a) These are all unicellular protists

Explanation:
1. This option, These are all unicellular protists, is the one that agrees with the standard NCERT facts for this topic.

Question 5: Barophilic prokaryotes
(a) Grow slowly in highly alkaline frozen lakes at high altitudes
(b) Occur in water containing high concentrations of barium hydroxide
(c) Grow and multiply in very deep marine sediments
(d) Readily grown and divides in sea water enriched in any soluble salt of barium
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Answer: (c) Grow and multiply in very deep marine sediments

Explanation:
1. Barophilic prokaryotes grow and multiply in very deep marine sediments.

Question 6: Auxospores and hormocysts are formed, respectively, by
(a) Several diatoms and a few cyanobacteria
(b) Several cyanobacteria and several diatoms
(c) Some diatoms and several cyanobacteria
(d) Some cyanobacteria and many diatoms
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Answer: (a) Several diatoms and a few cyanobacteria

Explanation:
1. Auxospores – Diatoms Hormocysts – Cyanobacteria.

Question 7: All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia :
(a) Can induce root nodules on many plant species
(b) Can fix nitrogen in the free-living state
(c) Like Rhizobium, it usually infects its host plant through root hair deformation and stimulates cell proliferation in the host’s cortex
(d) Forms specialized vesicles in which the nitrogenase is protected from oxygen by a chemical barrier involving triterpene hopanoids
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Answer: (b) Can fix nitrogen in the free-living state

Explanation:
1. Frankia is free living bacteria but can fix nitrogen in free living as well as symbiotic state.

Question 8: Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction?
(a) Euglena
(b) Amoeba
(c) Paramoecium
(d) Trypanosoma
Show Answer & Explanation

Answer: (c) Paramoecium

Explanation:
1. This option, Paramoecium, is the one that agrees with the standard NCERT facts for this topic.

Question 9: For retting of jute the fermenting microbe used is:
(a) Helicobacter pylori
(b) Methophilic bacteria
(c) Streptococcus lactin
(d) Butyric acid bacteria
Show Answer & Explanation

Answer: (d) Butyric acid bacteria

Explanation:
1. Retting of jute – Butyric acid bacteria.

Question 10: In five kingdom system, the main basis of classification is
(a) Structure of nucleus
(b) Mode of nutrition
(c) Structure of cell wall
(d) Asexual reproduction
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Answer: (b) Mode of nutrition

Explanation:
1. Main basis of five-kingdom system is – mode of nutrition.

Question 11: In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classification is used ?
(a) Plantae
(b) Fungi
(c) Protista
(d) Monera
Show Answer & Explanation

Answer: (d) Monera

Explanation:
1. Archaebacteria and Nitrogen-fixing bacteria–Monera.

Question 12: Maximum nutritional diversity is found in the group
(a) Monera
(b) Plantae
(c) Fungi
(d) Animalia
Show Answer & Explanation

Answer: (a) Monera

Explanation:
1. Maximum nutritional diversity–Monera.

Question 13: Nuclear membrane is absent in
(a) Volvox
(b) Nostoc
(c) Penicillium
(d) Agaricus
Show Answer & Explanation

Answer: (b) Nostoc

Explanation:
1. Nostoc – Prokaryotes.

Question 14: Organisms called Methanogens are most abundant in a
(a) Hot spring
(b) Sulphur rock
(c) Cattle yard
(d) Polluted stream
Show Answer & Explanation

Answer: (c) Cattle yard

Explanation:
1. Cattle yard – Methanogens are most abundant.

Question 15: Which of the followings is mainly produced by the activity of anaerobic bacteria on sewage?
(a) Marsh gas
(b) Laughing gas
(c) Propane
(d) Mustard gas
Show Answer & Explanation

Answer: (a) Marsh gas

Explanation:
1. Marsh gas is mainly produced by the activity of anaerobic bacteria on sewage.

Question 16: A peculiar odour that prevails in marshy areas and cow-sheds is on account of a gas produced by
(a) Mycoplasma
(b) Archaebacteria
(c) Slime moulds
(d) Cyanobacteria
Show Answer & Explanation

Answer: (b) Archaebacteria

Explanation:
1. Methane is produced by Methanogens.

Question 17: Organisms, which fix atmospheric nitrogen in the soil, fall under the category of
(a) Bacteria
(b) Green algae
(c) Soil fungi
(d) Mosses
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Answer: (a) Bacteria

Explanation:
1. Nitrogen-fixing organisms are bacteria.

Question 18: Transduction in bacteria is mediated by
(a) Plasmid vector
(b) Phage vector
(c) Cosmid
(d) F-factor
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Answer: (b) Phage vector

Explanation:
1. Transduction in bacteria is mediated by virus.

Question 19: Many blue-green algae occur in thermal springs (hot water springs). The temperature tolerance of these algae have been attributed to their
(a) Mitochondrial structure
(b) Importance of homopolar bonds in their proteins
(c) Cell wall structure
(d) Modern cell organization
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Answer: (b) Importance of homopolar bonds in their proteins

Explanation:
1. Temperature tolerance of BGA is due to homopolymer bonds in their protein.

Question 20: A large number of organic compounds can be decomposed by
(a) Photoheterotorphs
(b) Pseudomonas
(c) Photolithotrophs
(d) Chemoheterotrophs
Show Answer & Explanation

Answer: (b) Pseudomonas

Explanation:
1. Pseudomonas decomposes a large number of organic compounds.

Question 21: What are the sex organs provided in some bacteria?
(a) Sex pili
(b) Plasmid
(c) Circular DNA
(d) Gametes
Show Answer & Explanation

Answer: (a) Sex pili

Explanation:
1. Sex pilli are the sex organs in some bacteria.

Question 22: BGA (blue green algae) are included in which of the following groups?
(a) Bryophytes
(b) Prokaryotes
(c) Protista
(d) Fungi
Show Answer & Explanation

Answer: (b) Prokaryotes

Explanation:
1. BGA, (cyanobacteria) belong to prokaryotes.

Question 23: Which type of DNA is found in bacteria?
(a) Circular DNA
(b) Membrane bound DNA
(c) Straight DNA
(d) Helical DNA
Show Answer & Explanation

Answer: (a) Circular DNA

Explanation:
1. Bacterial DNA is circular DNA.

Question 24: A few organisms are known to grow and multiply at temperatures of 100-105°C. They belong to
(a) Thermophilic sulphur bacteria
(b) Hot spring blue-green algae
(c) Thermophilic subaerial fungi
(d) Marine archaebacteria
Show Answer & Explanation

Answer: (d) Marine archaebacteria

Explanation:
1. Bacteria grow and multiply at temperature of 100–105°C are hot spring blue-green algae.

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Biological Classification Objective Questions & Solutions for NEET Biology

About Biological Classification MCQs for NEET Biology

Test your conceptual understanding of Biological Classification with these targeted multiple-choice questions. Designed in alignment with the latest NEET curriculum for NEET Biology, these problem sets build accuracy and prepare students for objective exams.

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FAQs

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