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NEET Exam  >  NEET Test  >  Biology Class 11  >  Test: Biological Classification - 1 - NEET MCQ

Biological Classification - 1 - NEET Biology Class 11 Free MCQ Test


MCQ Practice Test & Solutions: Test: Biological Classification - 1 (20 Questions)

You can prepare effectively for NEET Biology Class 11 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Biological Classification - 1". These 20 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 20 minutes
  • - Number of Questions: 20

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Test: Biological Classification - 1 - Question 1
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Why are viruses not included in any of the five kingdoms?

Detailed Solution: Question 1

  • Unlike organisms in the other five kingdoms which are living, viruses are non-living organisms.
  • They don’t even have basic unit of life i.e. cell.
  • Hence, they are not categorised in any of the kingdoms.

Hence, the correct answer is B
NCERT Reference: Topic “Viroids” of chapter "Biological Classification" of NCERT.

Topic in NCERT: Viruses, viroids, prions and lichens

Line in NCERT: "viruses did not find a place in classification since they are not considered truly ‘living', if we understand living as those organisms that have a cell structure."

Test: Biological Classification - 1 - Question 2
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In which class of fungi the mushroom belongs to?

Detailed Solution: Question 2

  • Mushrooms are the commonly known form of Basidiomycetes, called bracket fungi or puffballs.
  • They grow in soil, on logs and tree stumps and in living plant bodies as parasites, e.g., rusts and smuts.


Hence, the correct option is B
NCERT Reference: Topic Basidiomycetes” of chapter "Biological Classification" of NCERT.

Topic in NCERT: Basidiomycetes

Line in NCERT: "commonly known forms of basidiomycetes are mushrooms, bracket fungi or puffballs."

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Test: Biological Classification - 1 - Question 3
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The five kingdom classification was proposed by______.

Detailed Solution: Question 3

Five kingdom classification was proposed by R.H. Whittaker in 1969.
The kingdoms identified by him were:

  • Monera
  • Protista
  • Fungi
  • Plantae  
  • Animalia

Hence, the correct option is D
NCERT Reference: Topic- Five kingdom classification  of chapter "Biological Classification" of NCERT.

Topic in NCERT: Biological classification

Line in NCERT: "r.h. whittaker (1969) proposed a five kingdom classification."

Test: Biological Classification - 1 - Question 4
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Which one is important in nutrient recycle and act as decomposer and mineralisers of the biosphere?

Detailed Solution: Question 4

Heterotrophic bacteria are most abundant in nature. The majority are important decomposers.

Commonly known as sac-fungi, the ascomycetes are mostly multicellular, e.g., Penicillium, or rarely unicellular, e.g., yeast (Saccharomyces). They are saprophytic, decomposers, parasitic, or coprophilous (growing on dung).

Some members of deuteromycetes are saprophytes or parasites while a large number of them are decomposers of litter and help in mineral cycling. Some examples are Alternaria, Colletotrichum, and Trichoderma.

Topic in NCERT: Kingdom monera

Line in NCERT: "heterotrophic bacteria are most abundant in nature. the majority are important decomposers."

Test: Biological Classification - 1 - Question 5
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Which of the following pairs include photosynthetic and saprophytic/heterotrophic organisms respectively?

Detailed Solution: Question 5

Correct option is B.

Lichens are symbiotic associations i.e. mutually useful associations, between algae and fungi. The algal component is known as phycobiont and fungal component as mycobiont, which are autotrophic and heterotrophic, respectively. Algae prepare food for fungi and fungi provide shelter and absorb mineral nutrients and water for its partner.

Test: Biological Classification - 1 - Question 6
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Which of the following organisms can be found in extreme saline conditions?

Detailed Solution: Question 6

Archaebacteria are special since they live in some of the most harsh habitats such as extreme salty areas (halophiles), hot springs (thermoacidophiles) and marshy areas (methanogens). Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions.

Topic in NCERT: Archaebacteria

Line in NCERT: "these bacteria are special since they live in some of the most harsh habitats such as extreme salty areas (halophiles), hot springs (thermoacidophiles) and marshy areas (methanogens)."

Test: Biological Classification - 1 - Question 7
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The _____ spores are conidia produced ________ on the special mycelium called conidiophores whereas ______spores are ascospores which are produced _________in sac like asci.

Detailed Solution: Question 7

The asexual spores are conidia produced exogenously on the special mycelium called conidiophores. Conidia on germination produce mycelium. Sexual spores are called ascospores which are produced endogenously in sac like asci (singular ascus).

Topic in NCERT: Ascomycetes

Line in NCERT: "the asexual spores are conidia produced exogenously on the special mycelium called conidiophores. sexual spores are called ascospores which are produced endogenously in sac like asci."

Test: Biological Classification - 1 - Question 8
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Identify the above process in bacteria and identify part A,B &C:
Identify the above process in bacteria and identify part A,B &C:

Detailed Solution: Question 8

This process is binary fission.

Topic in NCERT: Kingdom monera

Line in NCERT: "bacteria reproduce mainly by fission (figure 2.3)."

Test: Biological Classification - 1 - Question 9
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Identify the organism

Detailed Solution: Question 9

Solution:

The question shows four different organisms labeled A, B, C, and D. We need to identify each organism correctly.

  • Organism A: This organism has a characteristic silica shell with intricate patterns. This matches the description of Dinoflagellates, which have cellulose plates and two flagella.
  • Organism B: This organism has a flagellum and shows characteristics of a photosynthetic protozoan with an eyespot and chloroplasts. This matches Euglena.
  • Organism C: This organism has an irregular shape with pseudopodia, which are extensions of the cytoplasm used for movement and engulfing food. This identifies it as Slime mould, which shows amoeboid movement and forms a plasmodium in its life cycle.
  • Organism D: This organism is covered with cilia and has a distinct oral groove, contractile vacuole, and two types of nuclei (macro- and micronuclei). This is typical of Paramecium.

Hence, the correct identification is:

  • A - Dinoflagellates
  • B - Euglena
  • C - Slime mould
  • D - Paramecium

The correct option that matches this identification is option C.

Summary:

LabelOrganismKey Characteristics
ADinoflagellatesSilica shell, two flagella, cellulose plates
BEuglenaFlagellum, chloroplasts, eyespot
CSlime mouldPseudopodia, amoeboid movement
DParameciumCilia, oral groove, contractile vacuole

Topic in NCERT: Euglenoids

Line in NCERT: "example: euglena (figure 2.4b)."

Test: Biological Classification - 1 - Question 10
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The cell wall of fungi consist of:

Detailed Solution: Question 10

  • Chitin is a modified polysaccharide that contains nitrogen.
  • Chitin is synthesised from a long-chain of N-acetylglucosamine polymer and is a glucose derivative.
  • This polysaccharide is a primary component of cell walls in the fungi, arthropod exoskeletons such as crustaceans and insects, mollusc's radula, cephalopod beaks, and fish.

Fungal Cell Wall | Cell Wall Function | Fungi - Structure and Growth

Hence, the correct option is B
NCERT Reference: Topic- Characteristics of the Five Kingdoms of chapter "Biological Classification" of NCERT.

Topic in NCERT: Kingdom fungi

Line in NCERT: "the cell walls of fungi are composed of chitin and polysaccharides."

Test: Biological Classification - 1 - Question 11
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What is true for both (a) and (b)?

 

Detailed Solution: Question 11

A is TMV virus (Tobacco mosaic)

B is Bacteriophage.

Based on the provided statements, here is the correct assessment for both bacteriophages and Tobacco Mosaic Virus (TMV):

  1. RNA is the genetic material: This is true only for TMV. Bacteriophages  have  DNA  as their genetic material.

  2. Capability to infect bacteria: This is true only for bacteriophages. TMV infects plants.

  3. Being obligate parasites: This is true for both bacteriophages and TMV. Both require a host cell to replicate.

  4. Can be killed by antibiotics: This is not true for either. Antibiotics target bacterial processes and do not affect viruses.

The correct statement that is true for both bacteriophages and TMV is:

  1. Being obligate endoparasites

Test: Biological Classification - 1 - Question 12
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Which among the following can’t produce spores sexually?

Detailed Solution: Question 12

  • Deuteromycetes can’t produce spores sexually.
  • Asexual spores in Deuteromycetes are called as Conidia.
  • Deuteromycetes are also called as imperfect fungi due to absence of sexual reproduction.

Fig: Conidia

Hence, the correct answer is D
NCERT Reference: Topic Deuteromycetes” of chapter "Biological Classification" of NCERT.

Topic in NCERT: Deuteromycetes

Line in NCERT: "the deuteromycetes reproduce only by asexual spores known as conidia."

Test: Biological Classification - 1 - Question 13
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What are the two distinct phases in the life cycle of plants?

Detailed Solution: Question 13

Life cycle of plants has two distinct phases – the diploid sporophytic and the haploid gametophytic – that alternate with each other. The lengths of the haploid and diploid phases, and whether these phases are free– living or dependent on others, vary among different groups in plants. This phenomenon is called alternation of generation.

Topic in NCERT: Kingdom plantae

Line in NCERT: "life cycle of plants has two distinct phases – the diploid sporophytic and the haploid gametophytic – that alternate with each other."

Test: Biological Classification - 1 - Question 14
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How do two haploid hyphae of compatible mating types reproduce in some fungi?

Detailed Solution: Question 14

In ascomycetes and basidiomycetes, when two haploid hyphae of compatible mating types come together, they fuse and form a dikaryotic stage (n + n), where each cell contains two haploid nuclei. This stage is called the dikaryon, and the phase is known as the dikaryophase. This condition persists for some time before the two nuclei finally fuse to form a diploid nucleus. This process is different from other fungi like zygomycetes, where fusion leads directly to diploid cells.

Topic in NCERT: Sexual reproduction in fungi

Line in NCERT: "when a fungus reproduces sexually, two haploid hyphae of compatible mating types come together and fuse. in some fungi (ascomycetes and basidiomycetes), an intervening dikaryotic stage (n + n, i.e., two nuclei per cell) occurs; such a condition is called a dikaryon and the phase is called dikaryophase of fungus."

Test: Biological Classification - 1 - Question 15
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Assertion (A): In the five kingdom classification, Protista includes unicellular eukaryotic organisms.
Reason (R): Protists possess a well-defined nucleus and membrane-bound organelles.

Detailed Solution: Question 15

Kingdom Protista includes all single-celled eukaryotes. Being eukaryotic, they possess a well-defined nucleus and membrane-bound organelles. Thus both Assertion and Reason are true and R correctly explains A.

Test: Biological Classification - 1 - Question 16
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Match the following: 

List I List II
A. Diatoms 1. Pellicle instead of cell wall
B. Euglenoids 2. Fruiting bodies called basidiocarps
C. Slime moulds 3. Diatomaceous earth
D. Basidiomycetes 4. Plasmodium formation

Detailed Solution: Question 16

Diatoms leave behind deposits known as diatomaceous earth.
Euglenoids possess pellicle instead of a cell wall.
Slime moulds form plasmodium under suitable conditions.
Basidiomycetes produce fruiting bodies called basidiocarps.

Test: Biological Classification - 1 - Question 17
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Arrange the following steps of sexual reproduction in fungi in correct sequence:
I. Meiosis in zygote
II. Plasmogamy
III. Karyogamy

Detailed Solution: Question 17

The sexual cycle in fungi involves: First plasmogamy (fusion of protoplasm), then karyogamy (fusion of nuclei), followed by meiosis in zygote . Hence correct sequence is II → III → I.

Test: Biological Classification - 1 - Question 18
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Consider the following statements regarding Archaebacteria:
A. They can survive in extreme salty areas.
B. They possess a different cell wall structure from other bacteria.
C. All archaebacteria are photosynthetic.
D. Methanogens produce methane in the gut of ruminants.
Which of the following is correct?

Detailed Solution: Question 18

Archaebacteria live in extreme salty areas (halophiles) and have a different cell wall structure. Methanogens produce methane in ruminants. They are not all photosynthetic. Hence A, B and D are correct.

Test: Biological Classification - 1 - Question 19
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Which of the following statements is correct regarding viruses?

Detailed Solution: Question 19

Viruses are obligate parasites and inert outside the host cell. No virus contains both DNA and RNA; they are non-cellular. Hence option C is correct.

Test: Biological Classification - 1 - Question 20
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Assertion (A): Deuteromycetes are called imperfect fungi.
Reason (R): Only the asexual or vegetative phases of these fungi are known.

Detailed Solution: Question 20

Deuteromycetes are termed imperfect fungi because only their asexual or vegetative phase is known . Hence both A and R are true and R explains A correctly.

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This test contains 20 MCQs on Biological Classification - 1 with detailed solutions for each question. It is part of the Biology Class 11 course on EduRev, designed to align with the current NEET syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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