NEET Biology Biological Classification MCQs Set 16

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

Navigate directly to the 50 objective questions for Biological Classification using the digital viewer below. Each practice set includes verified answer keys, allowing students to instantly cross-check their work and identify areas requiring further revision.

Multiple Choice Questions

Question 1: Which organisms are not included in the five kingdom system of classification?
(a) Protozoans
(b) Viruses
(c) Lichens
(d) Both (b) and (c)
Show Answer & Explanation

Answer: (d) Both (b) and (c)

Explanation:
1. Viruses are non-cellular and lichens are symbiotic associations, so neither is given a place in the five kingdoms
2. Protozoans belong to Protista

Teacher's Note:
1. Recall the NCERT fact.

Question 2: Aristotle classified animals into two groups on the basis of the presence or absence of RBC. The group that does not have RBC is:
(a) Anaima
(b) Enaima
(c) Ovipera
(d) Vivipera
Show Answer & Explanation

Answer: (a) Anaima

Explanation:
1. Anaima means without blood (RBC) and Enaima means with blood
2. Ovipera and Vivipera are based on egg-laying and live birth

Teacher's Note:
1. Recall the NCERT fact.

Question 3: Select the correct statement.
(a) Cholera, typhoid and tetanus are well-known diseases caused by viruses
(b) Dinoflagellates, euglenoids and slime moulds are placed under kingdom Monera
(c) Members of kingdom Protista are primarily aquatic
(d) Dinoflagellates are the chief 'producers' in the oceans
Show Answer & Explanation

Answer: (c) Members of kingdom Protista are primarily aquatic

Explanation:
1. Protists are mostly aquatic
2. Cholera, typhoid and tetanus are bacterial diseases
3. Dinoflagellates, euglenoids and slime moulds are protists, not monerans
4. Diatoms (not dinoflagellates) are the chief producers in the oceans

Teacher's Note:
1. Recall the NCERT fact.

Question 4: Select the non-protistan group.
(a) Slime moulds
(b) Dinoflagellates
(c) Phycomycetes
(d) Chrysophytes
Show Answer & Explanation

Answer: (c) Phycomycetes

Explanation:
1. Slime moulds, dinoflagellates and chrysophytes are protists
2. Phycomycetes are fungi

Teacher's Note:
1. Recall the NCERT fact.

Question 5: _____ are saprophytic protists whose bodies move along decaying twigs and leaves, engulfing organic material.
(a) Euglenoids
(b) Dinoflagellates
(c) Chrysophytes
(d) Slime moulds
Show Answer & Explanation

Answer: (d) Slime moulds

Explanation:
1. Slime moulds form a plasmodium that creeps over decaying matter and engulfs organic material

Teacher's Note:
1. Recall the NCERT fact.

Question 6: The fungi form fruiting bodies in which _____ division occurs, leading to the formation of _____ spores.
(a) Mitotic, diploid
(b) Reduction, haploid
(c) Mitotic, haploid
(d) Reduction, diploid
Show Answer & Explanation

Answer: (b) Reduction, haploid

Explanation:
1. Meiosis (reduction division) takes place in the fruiting body
2. It produces haploid spores

Teacher's Note:
1. Recall the NCERT fact.

Question 7: Select the incorrect match (Class - Member).
(a) Phycomycetes - Albugo
(b) Basidiomycetes - Claviceps
(c) Ascomycetes - Penicillium
(d) Deuteromycetes - Trichoderma
Show Answer & Explanation

Answer: (b) Basidiomycetes - Claviceps

Explanation:
1. Claviceps is an ascomycete, not a basidiomycete
2. The other three pairs are correct

Teacher's Note:
1. Recall the NCERT fact.

Question 8: Coenocytic mycelium is found in:
(a) Deuteromycetes
(b) Phycomycetes
(c) Ascomycetes
(d) All of these
Show Answer & Explanation

Answer: (b) Phycomycetes

Explanation:
1. Phycomycetes have aseptate, multinucleate (coenocytic) hyphae
2. The others have septate mycelium

Teacher's Note:
1. Recall the NCERT fact.

Question 9: The members of which group are commonly known as sac fungi?
(a) Phycomycetes
(b) Deuteromycetes
(c) Basidiomycetes
(d) Ascomycetes
Show Answer & Explanation

Answer: (d) Ascomycetes

Explanation:
1. Ascomycetes produce ascospores inside sac-like asci
2. Deuteromycetes are the imperfect fungi

Teacher's Note:
1. Recall the NCERT fact.

Question 10: Which of the following statements is incorrect about viruses?
(a) Viruses contain either RNA or DNA
(b) Viruses do not have their own metabolic system
(c) Bacteriophages are usually double-stranded DNA viruses
(d) TMV contains both RNA and DNA as their genetic material
Show Answer & Explanation

Answer: (d) TMV contains both RNA and DNA as their genetic material

Explanation:
1. TMV has only RNA as its genetic material
2. Viruses never have both DNA and RNA

Teacher's Note:
1. Recall the NCERT fact.

Question 11: Viruses that infect bacteria are termed as:
(a) Cyanophages
(b) Bacteriophages
(c) Mycophages
(d) Both (a) and (b)
Show Answer & Explanation

Answer: (b) Bacteriophages

Explanation:
1. Viruses that infect bacteria are bacteriophages
2. Mycophages infect fungi

Teacher's Note:
1. Recall the NCERT fact.

Question 12: The protein coat called capsid, made of small subunits called capsomeres, is present in:
(a) Viruses
(b) Bacteria
(c) Fungi
(d) Gymnosperms
Show Answer & Explanation

Answer: (a) Viruses

Explanation:
1. Capsid and capsomeres are features of viruses

Teacher's Note:
1. Recall the NCERT fact.

Question 13: In a bacteriophage, the structure that lies between the head and the tail sheath is called the:
(a) collar
(b) base plate
(c) tail fibre
(d) capsomere
Show Answer & Explanation

Answer: (a) collar

Explanation:
1. A T-even phage has a head, a collar, a sheath and tail fibres
2. The collar joins the head to the sheath

Teacher's Note:
1. Recall the NCERT fact.

Question 14: Lichens show a symbiotic relationship between:
(a) algae and fungi
(b) algae and bacteria
(c) fungi and bacteriophage
(d) algae and bacteriophage
Show Answer & Explanation

Answer: (a) algae and fungi

Explanation:
1. A lichen is a mutualistic association of an alga or cyanobacterium (phycobiont) with a fungus (mycobiont)

Teacher's Note:
1. Recall the NCERT fact.

Question 15: Which is correct with respect to lichens?
(a) Mycobiont is the autotrophic component
(b) Phycobiont is the heterotrophic component
(c) They are good pollution indicators
(d) They do not grow in non-polluted areas
Show Answer & Explanation

Answer: (c) They are good pollution indicators

Explanation:
1. Lichens are very sensitive to SO2, so they indicate air pollution
2. The phycobiont is autotrophic and the mycobiont heterotrophic

Teacher's Note:
1. Recall the NCERT fact.

Question 16: The association of fungi with the roots of higher plants is called:
(a) Lichens
(b) Mycorrhiza
(c) Slime mould
(d) Neurospora
Show Answer & Explanation

Answer: (b) Mycorrhiza

Explanation:
1. In mycorrhiza the fungus helps in absorption of water and minerals, and gets food from the plant

Teacher's Note:
1. Recall the NCERT fact.

Question 17: Diatomaceous earth is formed due to which substance?
(a) Phosphorus
(b) Calcium
(c) Silicon
(d) Copper
Show Answer & Explanation

Answer: (c) Silicon

Explanation:
1. Diatom cell walls are impregnated with silica, which accumulates as diatomaceous earth

Teacher's Note:
1. Recall the NCERT fact.

Question 18: Specialized cells for fixing atmospheric nitrogen in Nostoc are:
(a) Akinetes
(b) Heterocysts
(c) Hormogonia
(d) Nodules
Show Answer & Explanation

Answer: (b) Heterocysts

Explanation:
1. Heterocysts are thick-walled cells that carry out nitrogen fixation

Teacher's Note:
1. Recall the NCERT fact.

Question 19: The most abundant prokaryotes helpful to humans in making curd from milk and in the production of antibiotics are categorised as:
(a) Chemosynthetic autotrophs
(b) Heterotrophic bacteria
(c) Cyanobacteria
(d) Archaebacteria
Show Answer & Explanation

Answer: (b) Heterotrophic bacteria

Explanation:
1. Lactic acid bacteria and antibiotic-producing bacteria are heterotrophic bacteria

Teacher's Note:
1. Recall the NCERT fact.

Question 20: 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. Methanogens live in the guts of ruminants and in dung, producing methane (biogas)

Teacher's Note:
1. Recall the NCERT fact.

Question 21: Mycorrhiza exhibits the phenomenon of:
(a) parasitism
(b) symbiosis
(c) antagonism
(d) endemism
Show Answer & Explanation

Answer: (b) symbiosis

Explanation:
1. Both the fungus and the plant benefit, which is symbiosis

Teacher's Note:
1. Recall the NCERT fact.

Question 22: Phylogenetic classification is one that is based on:
(a) overall similarities
(b) utilitarian system
(c) habits of plants
(d) common evolutionary descent
Show Answer & Explanation

Answer: (d) common evolutionary descent

Explanation:
1. Phylogenetic systems arrange organisms according to their evolutionary relationships

Teacher's Note:
1. Recall the NCERT fact.

Question 23: The cell wall is made of polysaccharide and amino acid in most of the members of:
(a) Monera
(b) Protista
(c) Fungi
(d) Animalia
Show Answer & Explanation

Answer: (a) Monera

Explanation:
1. Bacterial cell walls contain peptidoglycan, a polymer of sugars and amino acids
2. Fungal walls have chitin and animals have no cell wall

Teacher's Note:
1. Recall the NCERT fact.

Question 24: Which kingdom includes the nutritionally most diversed group of organisms and has no well-defined boundaries?
(a) Monera
(b) Protista
(c) Fungi
(d) Plantae
Show Answer & Explanation

Answer: (b) Protista

Explanation:
1. Protista includes photosynthetic, heterotrophic and parasitic forms, and its boundaries are not well defined

Teacher's Note:
1. Recall the NCERT fact.

Question 25: Chrysophytes are:
(a) diatoms and desmids
(b) diatoms and dinoflagellates
(c) slime moulds and desmids
(d) slime moulds and diatoms
Show Answer & Explanation

Answer: (a) diatoms and desmids

Explanation:
1. The chrysophytes include diatoms and golden algae (desmids) in the NCERT scheme

Teacher's Note:
1. Recall the NCERT fact.

Question 26: Which of the following options for diatoms is correct?
(a) Pecto-cellulosic cell wall
(b) Silicified cell wall
(c) Multicellular eukaryotes
(d) Produce saxitoxin
Show Answer & Explanation

Answer: (b) Silicified cell wall

Explanation:
1. Diatoms have two overlapping silica shells
2. They are unicellular and do not produce saxitoxin, which is a dinoflagellate toxin

Teacher's Note:
1. Recall the NCERT fact.

Free study material for Biology

Biological Classification Objective Questions & Solutions for NEET Biology

About Biological Classification MCQs for NEET Biology

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FAQs

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