Biological Classification MCQs

Biological classification is a scientific process that illustrates the arrangement of living organisms in accordance with their shared characteristics. It is also referred to as Taxonomy. Every living being on the planet is divided into five kingdoms. They are- Monera, Protista, Fungi, Plantae and Animalia. Furthermore, each kingdom has several sub-divisions. In the next segment, some biological classification MCQ is given that appears in examinations frequently. Take a look!

MCQ Questions on Biological Classification

The Regular practice of biological classification questions and answers helps the NEET aspirants qualify for the examination. Following are a few important MCQs. 

1. In Five-Kingdom Division, Chlorella and Chlamydomonas Fall Under

1. Algae

2. Plantae

3. Monera

4. Protista

Ans- d

Explanation- Chlamydomonas and Chlorella have been classified as Kingdom Protista in the five-kingdom system. Unicellular organisms belong to the kingdom Protista. Prokaryotes are included in the Monera kingdom. Chlamydomonas and Chlorella were previously classified as Algae. 

2. Which group holds maximum nutritional diversity?

1. Monera

2. Plantae

3. Fungi

4. Animalia

Ans- a

Explanation- The maximum nutritional diversity is included in the kingdom Monera. Photoautotrophic, chemoautotrophic, and heterotrophic modes of nutrition are all possible. Saprophytic, parasitic, or symbiotic organisms are examples of heterotrophs. Plantae organisms contain most autotrophic forms, whereas Fungi and Animalia have only heterotrophic types.

3. Nuclear Membrane Is Absent In?

1. Volvox

2. Nostoc

3. Agaricus

4. Penicillium

Ans- b

Explanation- Nostoc does not have a nuclear membrane.

4. Name the Classification, Based on the Genetic and Evolutionary Relationship

1. Phonetics

2. Biosystematics

3. Numerical taxonomy

4. Cladistics

Ans- d

Explanation- Cladistics is a biological classification technique that divides organisms into groups based on similar characteristics. Cladistics could be used to establish direct lineage to shared common ancestry and the development of distinct features since organisms are often categorised by how closely connected species were.

5. What is The Purpose of Taxonomy?

1. Explain the origin of life

2. Identification of unknown species

3. To search the history of evolution

4. Identify medicinal plants.

Ans- b

Explanation- Identification of unknown species

6. The Purpose of a Botanical Garden is to 

1. Preserves tropical plants

2. Ex-situ conservation of germplasm

3. To preserve wildlife

4. Giving a place for recreation

Ans- b 

Explanation- Botanical gardens are used for ex situ conservation of plant germplasm, the preservation of rare and endemic plant species, and to give enjoyment and plant knowledge to comman men.

7. In Which form Fungi Stores Food Material?

1. Lipid

2. Starch

3. Oil and glycogen

4. Protein

Ans- c

Explanation- Oil and glycogen are stored in the fungi. Glycogen is the kind of food that animals and fungus store. In these two kingdoms, it is the most common polysaccharide retention molecule. It is made up of a number of glucose units. As a result, glycogen can indeed be split into multiple glucose residues.

8. A common Characteristic of Archaebacteria

1. Structure of cell membrane

2. Structure of cell wall

3. Has fatty acid synthetase

4. Structure of flagellin protein

Ans- c

Explanation- Has fatty acid synthetase

9. Another Name of Cyanobacteria

1. Blue-green algae

2. Golden algae

3. Protists

4. Slime moulds

Ans- a

Explanation- Blue-green algae

10. Paramecium is 

1. Bacterium

2. Protozoan

3. Virus

4. Annelid

Ans- b

Explanation- It is a  Protozoan. Paramecium is a single-celled creature. Its size varies between species, ranging between 50 to 300um. It is primarily found in aquatic habitats. The ciliate protozoa are classified as eukaryotes which belong to the kingdom Protista.

11. Name of Agaricus’s Fruiting Body

1. Fairy rings

2. Cleistothecium

3. Basidiocarp

4. Ascocarp

Ans- c

Explanation- Fungi contains sporophytes or fruiting bodies, in which sexually generated spores are created on the surface of club-shaped structures is known as a basidiocarp, also known as a basidioma (basidia). 

12. Phycology is the Study of 

1. Algae

2. Fungi

3. Lichens

4. Mosses

Ans- a

Explanation- The scientific study of algae is known as phycology. Phycology, sometimes known as algology, is a discipline of biological science. Algae play a vital role in aquatic environments at trophic level as they are primary producers. 

13. Viral Envelope Consists of

1. Proteins

2. Lipids

3. Carbohydrates

4. All one the above

Ans- d

Explanation- Proteins, lipids and carbohydrates are all the constituents of the viral envelope.

14. Heterocyst in Nostoc Participates in

1. Nitrogen-fixation

2. Fragmentation

3. Fruit storage

4. Symbiotic relation

Ans- a

Explanation- A heterocyst is a orgasnelle that is found in the nitrogen-fixing cyanobacterial cell that has undergone differentiation. Under aerobic circumstances, the heterocysts serve as nitrogen fixation sites.

15. Whittaker’s Definition of Classification Does Not Include

1. Algae

2. Protista

3. Plantae

4. Mychota

Ans- a

Explanation- Algae is not included in the classifgication system proposed by the Whittaker.

16. Classification is Not Based On 

1. Thallus organisation

2. Cell structure

3. Gross morphology

4. Phylogenetic relationship

Ans- c

Explanation- Gross morphology is not a parameter that is used for classification in taxonomy. 

17. Which is Not A Bacterial Disease?

1. Cholera

2. Plague

3. Citrus canker

4. Mumps

Ans- d

Explanation- Mumps is a viral illness of the salivary glands that may be easily avoided with a vaccination. Mumps is caused by the mumps virus, which is part of the paramyxovirus family. Mumps impacts the salivary glands as well as the parotid glands. Infected saliva  transmits the illness. 

18. Which of The Following Features Mycoplasma Does Not Have?

1. Pleomorphic

2. Lacks cell wall

3. All are correct

4. Cannot live without oxygen

Ans- d

Explanation- Mycolplasma is an aerobic organism that needs oxygen for survival. 

19. Which Is Incorrect for Protista?

1. Missing membrane-bound organelles

2. Links with several organisms

3. This kingdom’s boundary is not clear

4. Some have cilia or flagella

Ans- a

Explanation- Protists are eukaryotes, the haver nuclear mebrane. They also have mitochondria and the endoplasmic reticulum, both of which are membrane-bound organelles.

20. Diatoms Do Not Have

1. Indestructible cell walls

2. Cell walls are like a soapbox 

3. Two thick overlapping cells

4. Release cell wall deposits

Ans- c

Explanation- Diatoms do not have Two thick overlapping cells.

21. Azolla Boosts Soil Fertility of

1. Barley

2. Maize

3. Rice

4. Wheat

Ans- d

Explanation- Wheat.

22. Fungal Cell Walls Have

1. Hemicelluloses

2. Cellulose

3. Chitin

4. Pectin

Ans- d

Explanation- Pectin is a structural acidic heteropolysaccharide found in the fungi cell walls. Galacturonic acid, a sugar acid produced from galactose, is a major component.

23. Genetic Recombination Can Happen in Prokaryotes During

1. Transformation

2. Transduction

3. Conjugation

4. All of these

Ans- d

Explanation- All of these.

24. Spirochaetes Are

1. Bacteria

2. A class of viruses

3. A class of insects

4. Fungi

Ans- a

Explanation- Spirochetes are spiral-shaped bacteria that cause illnesses including syphilis, yaws, Lyme disease, and relapsing fever in humans. Spirochaeta, Treponema, Borrelia, and Leptospira are examples of spirochete genera.

25. Diatoms Do Not Decay Quickly Because

1. They are Chitinous

2. It has siliceous walls

3. Diatoms contain saline soil

4. Their body is impervious to water

Ans- b

Explanation- The siliceous walls slows the decay process. 

26. What are Plant Decomposers?

1. Monera and fungi

2. Plantae and fungi

3. Monera and Animalia

4. Animalia and Protista

Ans- a

Explanation- Decomposers are bacteria and fungi that break down dead and decaying organic matter into simpler things like carbon dioxide, water, simple sugars, and mineral salts and return the nutrients to the soil.

27. What Causes Red Tide?

1. Ceratium

2. Triceratium

3. Gonyalax

4. All of these

Ans- c

Explanation- A red tide is a sea surface colouring event. It's a term used to describe toxic algal blooms that occur in coastal areas and are caused by high concentrations of microbes like protozoans and unicellular algae. Gonyaulax is a genus of dinoflagellate algae belonging to the Gonyaulacaceae family that may be found in marine, freshwater, or brackish water.

28. Which One Is Sexual Spore?

1. Ascospore

2. Zoospore

3. Conidia

4. Sporangiospore

Ans- a

Explanation- Ascospore is asexual spore

29. Which Is Not A Part of The Sexual Cycle of Fungi?

1. Plasmogamy

2. Mitosis

3. Karyogamy

4. Meiosis

Ans- b

Explanation- Mitosis is the form of cell division in which the cell divides in two identical daughters.

30. Which One Does Not Belong to Deuteromycetis?

1. Colletotrichum

2. Alternaria

3. Ustilago

4. Trichoderma

Ans- c

Explanation- Ustilago does not belong to deuteromycetis

31. Which Statement is False for Capsid?

1. It consists of capsomeres

2. This the outermost layer of most viruses

3. They are arranged in random geometrical structure

4. It protects genetic material

Ans- c

Explanation- Caspids are arranged in random geometrical structure is a false statement.

32. The largest Herbarium Is Situated At 

1. Kew

2. New York

3. Berlin

4. Geneva

Ans-  a

Explanation- Royal Botanical Garden situated at Kew is the largest botanical garden.

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