Biological Classification - Live Session (2024)

Biological Classification - Live Session - NEET 2020Contact Number: 9667591930 / 8527521718

1.

Citrus canker is caused by?
1. Bacteria
2. Virus
3. Fungi
4. Algae

2.

Match the following and choose the correct combination from the options given –

1. A - i, B - iii, C - ii, D - iv
2. A - ii, B - iv, C - iii, D - i
3. A - iv, B - ii, C - iii, D - i
4. A - iv, B - iii, C - ii, D - i

3.

Dikaryophase / Dikaryon formation is a specific characteristic of
1. All fungi
2. Phycomycetes and ascomycetes
3. Only basidiomycetes
4. Ascomycetes and basidiomycetes

4.

Given below is the diagram of a bacteriophage. In which of the options all the four parts A, B, C and D
are correct

A B C D
1. Tail fibres Head Sheath Collar
2. Sheath Collar Head Tail fibres
3. Head Sheath Collar Tail fibres
4. Collar Tail fibres Head Sheath

5.

Given below the following statements about labelling (i) and (ii)
(a) Labelling (i) can fix atmospheric nitrogen even in the presence of O₂
(b) Labelling (ii) is also found around pollen grains of hydrophilous plants
(c) Labelling (i) is found is Nostoc & Anabaena
(d) Labelling (i) & (ii) are features of photosynthetic autotrophs & chemosynthetic autotrophs.
In the above statements, pick up the incorrect statements about labelling (i) & (ii)
1. a, b, c
2. b, d
3. a, d
4. b, c, d

6.

In the five-kingdom classification, Chlamydomonas and Chlorella have been included in:
1. Protista
2. Algae
3. Plantae
4. Monera

7.

Fungus used in genetic experiments is
1. Rhizopus
2. Mucor
3. Neurospora
4. Claviceps

8.

T.O. Diener discovered a
1. Bacteriophage
2. Free infectious RNA
3. Free infectious DNA
4. Infectious protein

9.

Which among the following group of organisms show a great diversity in morphology and habitat.
1. Chrysophytes
2. Dinoflagellates
3. Protozoan Protists
4. Fungi

10.

Organisms which are found in freshwater as well as in marine environment, they are microscopic and
float passively in water current (plankton). Most of them are photosynthetic. The cell wall form two thin
overlapping shell, which fit together as in a soapbox.
Organisms which possess above characters are
1. Dinoflagellates
2. Chrysophytes
3. Diatoms
4. 2 & 3 both

11.

Match column I with column II

Options :-
1. A (iv), B (ii), C (iii), D (i)
2. A (iii), B (ii), C (iv), D (i)
3. A (i), B (ii), C (iii), D (iv)
4. A (iv), B (iii), C (ii), D (i)

12.

Members of Phycomycetes are found in
i. Aquatic habitats
ii. On decaying wood
iii. Moist and damp places
iv. As obligate parasite on plants
Choose from the following options
1. (i) and (iii)
2. (i) and (iv)
3. (ii) and (iii)
4. All of the above

13.

Give below the following statements
(a) Cell wall in many members of Phycomycetes is composed of cellulose.
(b) The mycelium of Deuteromycetes is aseptate & unbranched & Asexual reproduction is performed by
conidia.
(c) In ascomycetes, conidia are produced exogenously on conidiophores.
(d) Trichoderma is used to control fungal diseases in plants.
(e) Bread and beer are manufactured by Yeast
How many statements are correct
1. 2
2. 5
3. 3
4. 4

14.

Nucleic acid is absent in
1. Virus
2. Viroid
3. Prion
4. Mycoplasma

15.

Which of the following is correct?
1. all fungi are filamentous
2. transfer of DNA from one bacteria to another bacteria cannot take place
3. virus cannot have both DNA and RNA
4. protists reproduce asexually only

16.

Which of the following is correct about the slime mould?
(i) Its thalloid body, Plasmodium has pseudopodia for locomotion and engulfing organic matter.
(ii) During unfavourable conditions Plasmodium differentiates and produces fruiting bodies, sporangium.
(iii) Spores posses no true cell wall.
(iv) They are dispersed by air current.
(v) Being extremely resistant, spores survive for many years.
(vi) Plasmodium can grow upto several feet.
Choose the answer from the following options
1. (i),(ii),(iv),(v) and (vi)
2. (i ),(ii) and (iii)
3. (i),(ii), (ii) and (vi)
4. (ii),(iii) and (vi)

17.

Heterocyst present in Nostoc is specialised for
1. fragmentation
2. nitrogen-fixation
3. symbiotic relation
4. food storage

18.

In lichen, fungus has
1. Symbiotic relationship with alga
2. Epiphytic relationship with alga
3. Saprophytic relationship with alga
4. Parasitic relationship with alga

19.

A filamentous nitrogen-fixing bacterium is present in root nodules of non-leguminous plant
1. Cicer arietinum
2. Casuarina equisetifolia
3. Cycas revoluta
4. Crotalaria juncea

20.

Which is wrong about mycoplasma
1. They are called PPLO
2. They are pleomorphic
3. They are sensitive to penicillin
4. They cause diseases in plants

21.

In the light of recent classification of living organisms into three domains of life (bacteria, archaea and
eukarya), which one of the following statements is true about archaea
1. Archaea completely differ from both prokaryotes and eukaryotes
2. Archaea completely differ from prokaryotes
3. Archaea resemble eukarya in all respects
4. Archaea have some novel features that are absent in both prokaryotes and eukaryotes

22.

Which statement is wrong for viruses
1. All are parasites
2. All of them have helical symmetry
3. They have ability to synthesize nucleic acids and proteins
4. Antibiotics have no effect on them

23.

Five kingdom system of classification suggested by R.H. Whittaker is not based on:
1. Presence or absence of a well-defined nucleus
2. Mode of reproduction
3. Mode of nutrition
4. Complexity of body organisation

24.

Which one of the following matches is correct?

25.

The guts of cow and buffalo possess:
1. Chlorella spp
2. Methanogens
3. Cyanobacteria
4. Fucus spp

26.

Choose the wrong statements:
1. Neurospora is used in the study of biochemical genetics
2. Morels and truffles are poisonous mushrooms
3. Yeast is unicellular and useful in fermentation
4. Penicillium is multicellular and produces antibiotics

27.

Which of the following statements is wrong for viroids?
1. Their RNA is of high molecular weight
2. They lack a protein coat
3. They are smaller than viruses
4. They cause infections

28.

Viroids differ from viruses in having
1. DNA molecules with protein coat
2. DNA molecules without protein coat
3. RNA molecules with protein coat
4. RNA molecules without protein coat

29.

Which of the following components provides sticky character to the bacterial cell?
1. Cell wall
2. Nuclear membrane
3. plasma membrane
4. Glycocalyx

30.

Decomposers belong to kingdom
1. Monera and Protista
2. Protista and Fungi (Mycota)
3. Monera, Protista and Fungi
4. Protista, Fungi and Animalia

31.

Six kingdom classification was suggested by Gray and Doolittle (1982) and Carl Woose (1990) divided
these six kingdoms into three domains on the basis of sequence of
1. r-RNA genes
2. m-RNA genes
3. Nitrogen bases in DNA
4. Amino acids in protein

32.

Which of the following statement is/are correct with respect to Bacteria
(a) Bacteria are the sole members of the Kingdom Monera
(b) Bacteria occur almost everywhere
(c) Bacteria are the most abundant microorganism
(d) 80 S type of Ribosome are present in bacteria
1. a & d
2. b & d
3. a, b, c
4. b, c, d

33.

Which statement is/are wrong with respect to Archaebacteria.
(a) Archaebacteria differ from other bacteria in having a different cell wall structure.
(b) Feature of cell wall is responsible for their survival in extreme conditions.
(c) Methanogens are present in the guts of several ruminant animals such as cow & buffalo.
(d) These are oldest of the living fossils.
(e) Peptidoglycan & muramic acid are present in cell wall
1. a and e
2. b and e
3. a, b and c
4. only e

34.

Protistans are connecting link between
1. Plants and animals
2. Fungi and plants
3. Monerans and kingdoms of multicellular organisms
4. Fungi and animals

35.

Which statement is/are wrong with respect to kingdom Protista.
(i) All single-celled eukaryotes are placed under Protista
(ii) The boundaries of this kingdom are not well defined
(iii) Chrysophytes, dinoflagellates, Euglenoids, slime moulds and protozoans are included under Protista
(iv) All Protista are eukaryotic, achlorophyllous, heterotrophic, nonvascular organism
1. only (ii)
2. only (iii)
3. only (iv)
4. None of these

36.

Slime moulds are _____(i)______protists. The body moves along decaying twigs and leaves engulfing
organic material under suitable conditions, they form an aggregation called_____(ii)______which may
grow and spread over several feet.
In above question (i) & (ii) are respectively.
1. (i) Autotrophic, (ii) plasmodium
2. (i) Chemosynthetic autotrophic (ii) plasmodium
3. (i) Saprophytic, (ii) Phycobiont
4. (i) saprophytic, (ii) plasmodium

37.

Majority of Euglenoids are freshwater organisms found in stagnant water. Instead of cell wall, they
have a protein rich layer called _____(a)________which makes their body flexible. They have
_____(b)______flagella; (a) & (b) are respectively.
1. (a) Pellicle (b) One
2. (a) Pellicle, (b) Three
3. (a) Gelatinous sheath, (b) Two
4. (a)Pellicle (b) Two

38.

Which fungus and destruction of which crop caused the severe famine of lreland
1. Alternaria solani-Early blight of potato
2. Phytophthora infestans-Late blight of potato
3. Helminthosporium oryzae-Brown leaf spot of rice
4. Puccinia graminis tritici-Black rust wheat

39.

Read the following statement (A-D)
(A) Cell wall of Fungi consists of chitin or fungal cellulose.
(B) Most fungi are heterotrophic
(C) Fungi can also live as symbionts in association with algae as lichens and with roots of higher plants
as mycorrhiza
(D) Fusion of two nuclei called plasmogamy
How many of the above statement are correct ?
1. Two
2. Three
3. Four
4. one

40.

Pick up the correct statement about viruses.
1. They are neither living nor non-living and transitional/midway between non-living and livings.
2. They resemble the living organisms in the intracellular state and non-living chemicals in the
extracellular state.
3. They are obligate intracellular parasites at genetic level, have either DNA or RNA and reproduce
inside the host only.
4. all are correct.

41.

Viruses cannot multiply of their own or be grown in vitro on artificial medium because they
1. are dead
2. do not have sex organs and gametes
3. lack genetic material
4. lack cellular machinery to use their own genetic material

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