NEET Biology Biological Classification MCQs Set 09

Multiple Choice Questions (MCQs) for NEET Biology: Biological Classification

Access targeted multiple-choice questions for Biological Classification designed to align with the latest NEET academic syllabus for NEET Biology. These objective practice sets help students evaluate their conceptual understanding and improve exam readiness.

Practice Biological Classification MCQs for NEET Biology

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: Which group shows the most extensive metabolic diversity ?
(a) Plantae
(b) Animalia
(c) Monera
(d) Fungi
Show Answer & Explanation

Answer: (c) Monera

Explanation:
1. Kingdom Monera (bacteria) shows the widest metabolic diversity: autotrophs and heterotrophs of many kinds.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Question 2: Archaebacteria differ from other bacteria in :-
(a) Nucleoid
(b) Composition of cell wall
(c) Composition of cytoplasm
(d) Composition of genetic material
Show Answer & Explanation

Answer: (b) Composition of cell wall

Explanation:
1. Archaebacteria differ from other bacteria in the chemical composition of the cell wall, which lacks peptidoglycan.

Teacher's Note:
1. Viruses, viroids, prions and lichens are outside the five kingdoms.
2. Link each scientist with the discovery: Ivanowsky TMV, Beijerinck contagium vivum fluidum, Stanley crystals, Diener viroid.

Question 3: Which of the following character is common in both cyanobacteria and green plants ?
(a) Cell wall composition
(b) Presence of chlorophyll 'a'
(c) Presence of Nif gene
(d) Presence of 80s ribosome
Show Answer & Explanation

Answer: (b) Presence of chlorophyll 'a'

Explanation:
1. Both cyanobacteria and green plants have chlorophyll a and perform oxygenic photosynthesis.

Teacher's Note:
1. Viruses, viroids, prions and lichens are outside the five kingdoms.
2. Link each scientist with the discovery: Ivanowsky TMV, Beijerinck contagium vivum fluidum, Stanley crystals, Diener viroid.

Question 4: Which process is not performed by bacterial activity?
(a) Production of antibiotics
(b) Fixing nitrogen in legumes
(c) Making curd from milk
(d) Production of pseudomycelium
Show Answer & Explanation

Answer: (d) Production of pseudomycelium

Explanation:
1. Pseudomycelium is formed by yeast (a fungus), not by bacterial activity.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Question 5: Choose the correct set of bacterial disease :-
(a) Mumps, cholera, dengue
(b) Chicken pox, typhoid, mumps
(c) Mumps, tetanus, chicken pox
(d) Cholera, typhoid, tetanus
Show Answer & Explanation

Answer: (d) Cholera, typhoid, tetanus

Explanation:
1. Cholera, typhoid and tetanus are bacterial diseases; mumps, dengue and chicken pox are viral.

Teacher's Note:
1. Viruses, viroids, prions and lichens are outside the five kingdoms.
2. Link each scientist with the discovery: Ivanowsky TMV, Beijerinck contagium vivum fluidum, Stanley crystals, Diener viroid.

Question 6: Choose the incorrect statement regarding Mycoplasma :-
(a) They lack cell wall
(b) They are smallest living cell
(c) They can survive without oxygen
(d) They have mesosome for respiration
Show Answer & Explanation

Answer: (d) They have mesosome for respiration

Explanation:
1. Mycoplasma lack a cell wall, are the smallest living cells and survive without oxygen; the mesosome statement is not correct.

Teacher's Note:
1. Archaebacteria differ from eubacteria in cell wall chemistry and survive harsh habitats.
2. Protists are mainly aquatic and form a link with plants, animals and fungi.

Question 7: Which are chief producers of oceans ?
(a) Diatoms
(b) Dinoflagellates
(c) Euglenoid
(d) Green algae
Show Answer & Explanation

Answer: (a) Diatoms

Explanation:
1. Diatoms are the chief producers of the oceans.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Question 8: Which organism is responsible for making the sea appear red by rapid multiplication ?
(a) Euglena
(b) Noctiluca
(c) Gonyaulax
(d) Trypanosoma
Show Answer & Explanation

Answer: (c) Gonyaulax

Explanation:
1. Rapid multiplication of the dinoflagellate Gonyaulax causes red tides that make the sea look red.

Teacher's Note:
1. Viruses, viroids, prions and lichens are outside the five kingdoms.
2. Link each scientist with the discovery: Ivanowsky TMV, Beijerinck contagium vivum fluidum, Stanley crystals, Diener viroid.

Question 9: Euglenoids have a protein rich layer instead of a cell wall. This layer is called as :-
(a) Epidermis
(b) Skin
(c) Pellicle
(d) Middle layer
Show Answer & Explanation

Answer: (c) Pellicle

Explanation:
1. The protein-rich flexible layer of euglenoids is the pellicle.

Teacher's Note:
1. Archaebacteria differ from eubacteria in cell wall chemistry and survive harsh habitats.
2. Protists are mainly aquatic and form a link with plants, animals and fungi.

Question 10: The cell wall of fungi are composed of :-
(a) Chitin and cellulose
(b) Cellulose and polysaccharides
(c) Chitin and polysaccharides
(d) Chitin, polysaccharides and glycogen
Show Answer & Explanation

Answer: (c) Chitin and polysaccharides

Explanation:
1. Fungal cell walls are made of chitin and polysaccharides.

Teacher's Note:
1. Viruses, viroids, prions and lichens are outside the five kingdoms.
2. Link each scientist with the discovery: Ivanowsky TMV, Beijerinck contagium vivum fluidum, Stanley crystals, Diener viroid.

Question 11: Which group of organisms is used to make bread and beer ?
(a) Rhizopus
(b) Yeast
(c) Albugo
(d) Neurospora
Show Answer & Explanation

Answer: (b) Yeast

Explanation:
1. Yeast (Saccharomyces) is used to make bread and beer.

Teacher's Note:
1. Archaebacteria differ from eubacteria in cell wall chemistry and survive harsh habitats.
2. Protists are mainly aquatic and form a link with plants, animals and fungi.

Question 12: In fungi sexual reproduction is by :-
(a) Fragmentation, Ascospores and Basidiospores
(b) Budding, Conidia, and Basidiospores
(c) Oospores, Ascospores and Basidiospores
(d) Fission, Zoospores, Oospores
Show Answer & Explanation

Answer: (c) Oospores, Ascospores and Basidiospores

Explanation:
1. Sexual reproduction in fungi produces oospores, ascospores and basidiospores.

Teacher's Note:
1. Archaebacteria differ from eubacteria in cell wall chemistry and survive harsh habitats.
2. Protists are mainly aquatic and form a link with plants, animals and fungi.

Question 13: Mycelium of members of phycomycetes is :-
(a) Septate and coenocytic
(b) Aseptate and coenocytic
(c) Septate and multicellular
(d) Septate and unicellular
Show Answer & Explanation

Answer: (b) Aseptate and coenocytic

Explanation:
1. Phycomycetes have aseptate, coenocytic mycelium.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Question 14: Which is not a member of Phycomycetes ?
(a) Albugo
(b) Aspergillus
(c) Rhizopus
(d) Mucor
Show Answer & Explanation

Answer: (b) Aspergillus

Explanation:
1. Aspergillus is an ascomycete (a deuteromycete in the old scheme); Albugo, Rhizopus and Mucor are phycomycetes.

Teacher's Note:
1. Archaebacteria differ from eubacteria in cell wall chemistry and survive harsh habitats.
2. Protists are mainly aquatic and form a link with plants, animals and fungi.

Question 15: Which fungus is used extensively in biochemical and genetic work ?
(a) Agaricus
(b) Aspergillus
(c) Claviceps
(d) Neurospora
Show Answer & Explanation

Answer: (d) Neurospora

Explanation:
1. Neurospora is used extensively in biochemical and genetic work.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Question 16: Which set of diseases is caused by members of basidiomycetes ?
(a) Rust and smut
(b) Ergot and smut
(c) Ergot and rust
(d) Powdery mildew and rust
Show Answer & Explanation

Answer: (a) Rust and smut

Explanation:
1. Rusts (Puccinia) and smuts (Ustilago) are caused by basidiomycetes.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Question 17: Fungi imperfacti are called,
(a) members of phycomycetes
(b) members of ascomycetes
(c) members of basidiomycetes
(d) members of deuteromycetes
Show Answer & Explanation

Answer: (d) members of deuteromycetes

Explanation:
1. Fungi imperfecti is another name for the deuteromycetes.

Teacher's Note:
1. Viruses, viroids, prions and lichens are outside the five kingdoms.
2. Link each scientist with the discovery: Ivanowsky TMV, Beijerinck contagium vivum fluidum, Stanley crystals, Diener viroid.

Question 18: Which disease is not caused by a fungus ?
(a) Late blight of potato
(b) Black rust of wheat
(c) Red rust of tea
(d) Ergot of rye
Show Answer & Explanation

Answer: (c) Red rust of tea

Explanation:
1. Red rust of tea is caused by an alga (Cephaleuros); the other diseases are fungal.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Question 19: Which of the following are noncellular organisms that are characterized by having an inert crystalline structure outside the living cell:-
(a) Bacteria
(b) Mycoplasma
(c) Virus
(d) Lichen
Show Answer & Explanation

Answer: (c) Virus

Explanation:
1. Viruses are non-cellular and form inert crystals outside a living host.

Teacher's Note:
1. Viruses, viroids, prions and lichens are outside the five kingdoms.
2. Link each scientist with the discovery: Ivanowsky TMV, Beijerinck contagium vivum fluidum, Stanley crystals, Diener viroid.

Question 20: Select false statement :-
(a) Lichens are symbiotic association between algae & fungi
(b) Viruses are smaller than bacteria
(c) Virus name are obligate parasites
(d) Viruses are facultative parasite
Show Answer & Explanation

Answer: (d) Viruses are facultative parasite

Explanation:
1. Viruses are obligate parasites, not facultative parasites.

Teacher's Note:
1. Archaebacteria differ from eubacteria in cell wall chemistry and survive harsh habitats.
2. Protists are mainly aquatic and form a link with plants, animals and fungi.

Question 21: Which one of the following statement is true about bacteriophages ?
(a) They are generally single stranded RNA viruses.
(b) They are generally double stranded DNA viruses
(c) They are generally single stranded DNA viruses.
(d) They are generally double stranded RNA viruses
Show Answer & Explanation

Answer: (b) They are generally double stranded DNA viruses

Explanation:
1. Bacteriophages are generally double stranded DNA viruses.

Teacher's Note:
1. In the five kingdom scheme, Monera holds all prokaryotes and Protista all unicellular eukaryotes.
2. For fungi, remember the three named classes by their sexual spores and the form-class Deuteromycetes by absence of a sexual stage.

Biological Classification Objective Questions & Solutions for NEET Biology

NEET Biology Biological Classification Objective Test Questions

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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Each question includes structured solution keys mapped directly to standard NEET textbooks, helping students evaluate their reasoning and correct mistakes early in their revision.

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FAQs

Where can I access latest NEET Biology Biological Classification MCQs Set 09?

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Are Assertion-Reasoning and Case-Study MCQs included in the Biology NEET material?

Yes, our NEET Biology Biological Classification MCQs Set 09 include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the NEET paper is now competency-based.

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By solving our NEET Biology Biological Classification MCQs Set 09, NEET students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Biology.

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Yes, Biology MCQs for NEET have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused NEET exams.

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