NEET Biology Biological Classification MCQs Set 18

Biology Objective Questions and Answers: Biological Classification

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Multiple Choice Questions

Question 1: Mark the odd one w.r.t. kingdom fungi.
(a) They reproduce asexually and sexually
(b) They show a great diversity in structure and habitat
(c) Most of fungi are saprophytic in their mode of nutrition
(d) They do not reproduce by zoospores
Show Answer & Explanation

Answer: (d) They do not reproduce by zoospores

Explanation:
1. Fungi . Reproduce asexually and sexually . Great diversity in structure and habitat . Most of fungi are saprophytic. . Lower fungi reproduces by zoospores.

Question 2: The fungi form fruiting bodies in which _________ division occurs, leading to formation of _________ spores.
(a) Mitotic, diploid
(b) Reduction, haploid
(c) Mitotic, haploid
(d) Reduction, diploid
Show Answer & Explanation

Answer: (b) Reduction, haploid

Explanation:
1. Fungi Reproductive body Haploid spores Somatic cells Somatic cells Spores.

Question 3: Vegetative reproduction by fragmentation is common in
(a) Agaricus
(b) Saccharomyces
(c) Euglena
(d) Gonyaulax
Show Answer & Explanation

Answer: (a) Agaricus

Explanation:
1. Vegetative reproduction by fragmentation is common in fungi.

Question 4: 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. Phycomycetes – Albugo Basidiomycetes – Agaricus Ascomycetes – Penicillium Deuteromycetes – Trichoderma.

Question 5: Coenocytic mycelium is found in
(a) Deuteromycetes
(b) Phycomycetes
(c) Ascomycetes
(d) All of these
Show Answer & Explanation

Answer: (b) Phycomycetes

Explanation:
1. Coenocytic mycelium – Oomycetes and Zygomycetes Septate mycelium – Deuteromycetes, Ascomycetes and Basidiomycetes.

Question 6: 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. Sac fungi – Ascomycetes Club fungi – Basidiomycetes Imperfect fungi – Deuteromycetes Or Dustbin fungi Algal fungi – Oomycetes Conjugated fungi – Zygomycetes.

Question 7: Select the incorrect statement.
(a) Cuscuta is a parasitic plant
(b) Bladderwort and Venus fly trap are examples of insectivorous plants.
(c) Plantae includes algae, bryophytes, pteridophytes, gymnosperms and angiosperms
(d) The mode of nutrition in plants is holozoic
Show Answer & Explanation

Answer: (d) The mode of nutrition in plants is holozoic

Explanation:
1. Cuscuta (Amarbael) is parasitic plant Bladderwort and Venus fly trap are insectivorous plants Mode of nutrition in plants is autotrophic.

Question 8: In which group of organisms, reserve food is stored in the form of glycogen and fat?
(a) Man and Monkey
(b) Cuscuta and Dog
(c) Bladderwort and Cuscuta
(d) Bladderwort and Venus fly trap
Show Answer & Explanation

Answer: (a) Man and Monkey

Explanation:
1. Organism Stored food Man – Glycogen Monkey – Fat.

Question 9: Which of the following statement 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 its genetic material
Show Answer & Explanation

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

Explanation:
1. TMV contains RNA as its genetic material.

Question 10: Viruses that infect the bacteria are termed as
(a) Cyanophages
(b) Bacteriophages
(c) Mycophages
(d) Both (1) & (2)
Show Answer & Explanation

Answer: (b) Bacteriophages

Explanation:
1. Bacteriphages – Viruses that infect the bacteria.

Question 11: Who demonstrated that the extract of the infected plants of tobacco could cause infection in healthy plants?
(a) Pasteur
(b) M.W. Beijerinek
(c) D.J. Ivanowsky
(d) W.M. Stanley
Show Answer & Explanation

Answer: (b) M.W. Beijerinek

Explanation:
1. M.W. Beijerinek demonstrated that extract of the infected plants of tobacco could cause infection in healthy plants.

Question 12: Select the incorrect match w.r.t. genetic material.
(a) Herpes virus – ssDNA
(b) Bacteriophage – dsDNA
(c) TMV – ssRNA
(d) Influenza virus – ssRNA
Show Answer & Explanation

Answer: (a) Herpes virus – ssDNA

Explanation:
1. Herpes virus – dsDNA Bacteriophage – dsDNA TMV – ssRNA Influenza virus – ssRNA.

Question 13: 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. Mycorrhiza – Association of fungi with roots of higher plants.

Question 14: Which kingdom was introduced in four kingdom classification and who proposed it ?
(a) Protista and Copeland
(b) Plantae and Linnaeus
(c) Monera and Whittaker
(d) Monera and Copeland
Show Answer & Explanation

Answer: (d) Monera and Copeland

Explanation:
1. Four Kingdom Classification . Monera Kingdom was introduced . Copeland introduced.

Question 15: Select correct match w.r.t. Whittaker’ system of classification
(a) Monera : Unicellular, osmotrophs, producers and decomposers, true cellulosic cell wall
(b) Protista : Unicellular, eukaryotic, photoauto-trophs and chemoautotrophs
(c) Fungi : Multicellular/loose tissue, eukaryotic, osmotrophs, chitinous wall
(d) Animalia : Multicellular, eukaryotic, organ or organ system, holozoic, no saprobic
Show Answer & Explanation

Answer: (c) Fungi : Multicellular/loose tissue, eukaryotic, osmotrophs, chitinous wall

Explanation:
1. Whittaker’s system of classification Fungi – Multicellular / loose tissue Eukaryotic Osmotrophs → Saprotrophs Chitinous wall.

Question 16: Domain Eukarya includes how many kingdoms (w.r.t. six kingdom system)?
(a) 2
(b) 3
(c) 1
(d) 4
Show Answer & Explanation

Answer: (d) 4

Explanation:
1. Six kingdom classification Archaebacteria Prokaryotes Eubacteria Eukaryotes Protista Fungi Plantae Animalia (Kingdom : Monera).

Question 17: Bacteria are considered primitive organisms because they
(a) Possess incipient nucleus
(b) Are small, microscopic plants, which are not seen by the naked eyes
(c) Cause serious diseases to human being, domesticated animals and crop plants
(d) Produce endospores which are very resistant to adverse conditions
Show Answer & Explanation

Answer: (a) Possess incipient nucleus

Explanation:
1. Bacteria . Primitive organisms . Posses incipient nucleus.

Question 18: Branched chain lipids occur in the cell membranes of
(a) Methanobacterium
(b) Mycoplasma
(c) Actinomycetes
(d) Streptomyces
Show Answer & Explanation

Answer: (a) Methanobacterium

Explanation:
1. Branched chain lipids occur in the cell membrane of Archeaebacteria.

Question 19: Cyanobacteria do not possess
(a) Gene recombinations
(b) Flagella
(c) Plasmids
(d) Pigments
Show Answer & Explanation

Answer: (b) Flagella

Explanation:
1. Cynobacteria . Flagella absent . Gene recombinations . Plasmids Present . Pigments.

Question 20: Highly resistance nature of endospore is due to the presence of
(a) Dipicolinic acid and peptidoglycan in spore coat
(b) Peptidoglycan in exosporium
(c) Dipicolinic acid and Ca in cortex
(d) Dipicolinic acid and Ca in cell membrane
Show Answer & Explanation

Answer: (c) Dipicolinic acid and Ca in cortex

Explanation:
1. Highly resistance nature of endosperm is due to – dipicolinic acid and Ca in cortex.

Question 21: Endospores formed by certain bacteria are actually the means for
(a) Reproduction
(b) Perennation
(c) Bioluminescence
(d) Red snow formation
Show Answer & Explanation

Answer: (b) Perennation

Explanation:
1. Endospores formed by certain bacteria are actually means of perennation.

Question 22: Select an incorrect statement for F+ bacteria
(a) It has F plasmid
(b) Only somatic pili are present
(c) It is considered as donor bacterium
(d) It cannot conjugate with another F+ form
Show Answer & Explanation

Answer: (b) Only somatic pili are present

Explanation:
1. F+ bacteria . Has F plasmid . donor bacterium . cannot conjugate with another F+ form. . both fertility and somatic pili are present. (Kingdom : Protista).

Question 23: Sea water glows during night mainly due to occurrence of
(a) Gonyaulax
(b) Noctiluca
(c) Euglena
(d) Cyclotella
Show Answer & Explanation

Answer: (b) Noctiluca

Explanation:
1. Sea water glows during night Noctiluca.

Question 24: Leucosin (Chrysolaminarin) is a carbohydrate which is stored as reserve food in case of
(a) Diatom
(b) Euglena
(c) Dinoflagellates
(d) Paramoecium
Show Answer & Explanation

Answer: (a) Diatom

Explanation:
1. Organism Reserve food Diatom – Leucosin (Chrysolaminarin) Euglena – Paramylon Dinoflagellates – Carbohydrate and oil Paramecium – Glycogen granules.

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