📚 Biological Classification NEET Test, MCQs & PYQs Master 100%

Test your NEET preparation with our Biological Classification NEET Evaluate your NEET readiness by taking our exclusive Biological Classification NEET Test. Engage with multiple-choice questions, review past exam problems, and access comprehensive explanations to enhance your performance! Test. Solve MCQs, practice previous year questions, and get detailed explanations to Assess your NEET readiness through our specialized Biological Classification NEET Test. This test offers a range of multiple-choice questions, past exam problems for revision, and detailed explanations to boost your performance. Get ready to ace the test! t your score!

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Well done but don’t forget to revise the wrong answers!!!!

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#1. Assertion: Viruses are non-cellular organisms that do not have a cellular structure. Reason: Viruses are considered non-living because they cannot carry out metabolic processes on their own and require a host cell for replication.

Both the assertion and reason are true, and the reason is the correct explanation for the assertion.

Both the assertion and reason are true, but the reason is not the correct explanation for the assertion.

The assertion is true, but the reason is false.

The assertion is false, but the reason is true.

Both the assertion and reason are correct. Viruses lack a cellular structure and are not living organisms since they require a host cell to replicate, thus not carrying out independent metabolic processes.

#2. Which group of organisms is characterized by having a single-celled body structure and is known for its ability to cause malaria?

Protozoa

Bacteria

Fungi

Viruses

#3. Which of the following groups of protists are responsible for a significant portion of photosynthesis in marine environments?

Euglenoids

Dinoflagellates

Slime moulds

Sporozoans

#4. Certain cyanobacteria can fix atmospheric nitrogen in specialized cells known as:

Akinetes

Heterocysts

Homocysts

Nodules

#5. The protozoan Trypanosoma is responsible for which of the following diseases?

"Malaria"

"Sleeping sickness"

"Amoebiasis"

"Giardiasis"

#6. Identify the correct statement.

Phycomycetes encompass mushrooms, bracket fungi, and puffballs.

The mycelium of Basidiomycetes is branched and septate.

Neurospora is widely used in biochemical and genetic research; it belongs to the Basidiomycetes group.

Morels and truffles are not edible.

#7. Which characteristics belong to slime moulds? (a) They are saprophytic. (b) They form plasmodium under favorable conditions. (c) Their spores have true cell walls. (d) Their spores are dispersed by water. (e) Their bodies move along decaying organic matter.

All except (d).

All except (e).

All except (c) and (e).

All except (b).

#8. What is the mode of nutrition in fungi?

Autotrophic

Heterotrophic

Saprophytic

Both (2) and (3)

#9. Which of the following is NOT a characteristic of dinoflagellates?

They cause red tides.

Their cell wall is made of stiff cellulose plates.

They produce toxins.

They are predominantly found in fresh water and are non-photosynthetic.

#10. Which statement is incorrect?**

Isogametes are similar in structure, function, and behavior.

Anisogametes vary in structure, function, or behavior.

In Oomycetes, the female gamete is smaller and motile, while the male gamete is larger and non-motile.

Chlamydomonas exhibits both isogamy and anisogamy, whereas Fucus shows oogamy.

#11. Which of the following statements about the structure of viruses is false?

Viruses contain a protein coat made of capsomeres that protects the nucleic acid.

Viruses contain either DNA or RNA, but not both.

The nucleic acid of viruses is incapable of causing infections.

The capsid of viruses can be arranged in helical or polyhedral forms.

#12. In the five-kingdom classification proposed by Whittaker, eukaryotic organisms are included in which kingdoms?

All five kingdoms.

Four of the five kingdoms.

Three of the five kingdoms.

Only two of the five kingdoms.

#13. What is the haploid sexual spore produced exogenously?

"Ascospore"

"Basidiospore"

"Oospore"

"Zygospore"

#14. Which of the following is NOT a characteristic of prions?

Prions are infectious agents composed of abnormally folded proteins.

Prions can cause neurological diseases such as mad cow disease and CJD.

Prions contain both DNA and RNA as their genetic material.

Prions are capable of inducing other proteins to misfold and become prions themselves.

#15. Dinoflagellates possess:

A single flagellum in the transverse groove between cell plates.

A single flagellum in the longitudinal groove between cell plates.

Two flagella, one lying longitudinally and the other transversely in a furrow between the wall plates.

No flagella.

#16. Assertion (A): Slime moulds form a structure called plasmodium under favorable conditions. Reason (R): Plasmodium in slime moulds serves to engulf organic material and can grow to cover a large surface area.

re true, and R is the correct explanation of A.Both A and R a

Both A and R are true, but R is not the correct explanation of A.

A is true, but R is false.

A is false, but R is true.

#17. In the life cycle of plants, the term

The presence of multicellular haploid and diploid stages that alternate in the plant life cycle.

The exclusive occurrence of either a haploid or a diploid phase in all plant groups.

The process by which plants develop vascular tissue to support alternation of life forms.

life cycle in which both sporophytic and gametophytic phases are dependent on each other.

#18. Which of the following statements is accurate?

Organisms in Kingdom Protista are mainly aquatic.

Dinoflagellates, euglenoids, and slime molds are classified under Kingdom Monera.

Cholera, typhoid, and tetanus are primarily viral diseases.

Dinoflagellates are key producers in marine ecosystems.

#19. Which of the following statements about the Kingdom Plantae is correct?

All members of the Kingdom Plantae are exclusively autotrophic.

The cell walls of plants are composed primarily of pectin.

Bladderwort and Venus flytrap are examples of partially heterotrophic plants.

All plants have a free-living diploid phase and a dependent haploid phase.

#20. Which of the following criteria did R.H. Whittaker use for his five-kingdom classification system? (a) Cell structure (b) Body organization (c) Mode of nutrition (d) Reproduction (e) Phylogenetic relationships (f) Habitat (g) Biochemical differences

All except (e) and (f)

All except (f) and (g)

All except (d) and (g)

All except (c) and (e)

#21. Which of the following is the primary reason why viruses are not classified as living organisms in Whittaker’s five-kingdom classification?

They do not exhibit any form of sexual reproduction.

They lack the cellular structure required for classification as living organisms.

They do not contain any genetic material.

They do not require a host for replication.

#22. According to the six-kingdom system, how many kingdoms are included within Domain Eukarya?

#23. Viral symptoms observed in plants can include:

Mosaic formation, leaf rolling, and leaf curling

Yellowing and vein clearing in leaves

Dwarfism and stunted growth

All of these

#24. Which of the following is the correct sequence of events in the sexual reproduction of fungi?

"Plasmogamy → Karyogamy → Meiosis"

"Karyogamy → Meiosis → Plasmogamy"

"Meiosis → Plasmogamy → Karyogamy"

"Plasmogamy → Meiosis → Karyogamy"

#25. Which of the following is an example of a parasitic plant?

Cuscuta

Venus flytrap

Oak

Pea

#26. Aristotle was one of the first to attempt a scientific classification of living organisms. How did he classify plants and animals?

Plants into trees, shrubs, and herbs based on size and structure, and animals into two groups based on the presence or absence of red blood.

Plants based on their ability to perform photosynthesis and animals based on their behavior.

Plants based on the number of petals and animals based on the number of legs.

Plants and animals based solely on their habitat.

#27. The term prokaryote :

Lack a true nucleus

Contain chlorophyll

Are multicellular

Have a well-defined nuclear membrane

#28. Assertion (A): Red tides are caused by rapid multiplication of red-colored euglenoids. Reason (R): Certain dinoflagellates, such as Gonyaulax, undergo rapid reproduction and release toxins.

A is false, but R is true.

Both A and R are true, but R is not the correct explanation of A.

A is true, but R is false.

Both A and R are true, and R is the correct explanation of A.

#29. The soap-box-like cell wall is characteristic of:

"Archaebacteria."

"Diatoms."

"Dinoflagellates."

"Euglenoids."

#30. Which of the following is NOT true regarding the function of algae and fungi in lichens?

Algae are autotrophic and provide food for fungi.

Fungi are heterotrophic and provide water and nutrients to algae.

The symbiotic relationship between algae and fungi in lichens is mutually beneficial.

Fungi can perform photosynthesis and produce food for algae.

#31. Viroids differ from viruses in that they are:**

Naked DNA molecules

Naked RNA molecules

Proteinaceous particles

None of these

#32. Which of the following is a unique feature of bacteria?

Presence of chloroplasts

Presence of mitochondria

Presence of a nucleoid region

Presence of a nucleus

#33. In which of the following environments can halophilic Archaebacteria be found?

Deep oceanic trenches

High-altitude mountain ranges

Salt lakes or salt flats

Acidic hot springs

#34. Which of the following protists exhibits a saprophytic lifestyle, moving along decaying matter and forming a plasmodium?

Chrysophytes

Euglenoids

Slime moulds

Ciliated protozoans

#35. Which of the following is a characteristic of Archaebacteria?

They live in extreme conditions like hot springssalt lakes and deep-sea vents.

They have a peptidoglycan layer in their cell walls.

They are exclusively found in oxygen-rich environments.

They are classified under the Kingdom Plantae.

#36. Which of the following best describes the mode of reproduction of viruses?

Viruses reproduce through binary fission.

Viruses can replicate only inside their host cells by taking over the host's cellular machinery.

Viruses reproduce asexually by budding.

Viruses can undergo sexual reproduction.

#37. T.O. Diener is known for discovering which of the following?

Bacteriophage

Free infectious RNA

Free infectious DNA

Infectious protein

#38. Which of the following is not a characteristic of the kingdom Monera?

Unicellular

Prokaryotic

Heterotrophic or autotrophic

Multicellular organisms with specialized organs

#39. Assertion (A): Diatomaceous earth is a valuable resource for various industrial applications, including filtration and polishing. Reason (R): Diatomaceous earth is composed of accumulated cell walls of dinoflagellates, rich in cellulose.

A is true, but R is false.

Both A and R are true, but R is not the correct explanation of A.

Both A and R are true, and R is the correct explanation of A.

Both A and R are false.

#40. Which of the following statements are correct regarding the morphology and reproduction of fungi? 1.Fungi are unicellular, with the exception of yeasts. 2.The mycelium of fungi consists of thread-like structures called hyphae. 3.Fungi reproduce sexually through the formation of conidia and asexual reproduction through basidiospores. 4.The process of plasmogamy involves the fusion of two nuclei in fungi.

1 and 2

2 and 3

1, 2, and 3

2 and 4

#41. If hyphae are continuous tubes filled with multinucleated cytoplasm, they are known as:

Septate hyphae

Coenocytic hyphae

Mycelium

None of these

#42. Which of the following bacteria is responsible for nitrogen fixation in the roots of leguminous plants?

Streptococcus

Rhizobium

Methanogens

Cyanobacteria

#43. Assertion: The protein coat (capsid) of a virus is responsible for protecting its genetic material and determining the host specificity. Reason: The capsid is composed of proteins called capsomeres that are arranged in helical or polyhedral forms, allowing the virus to infect specific host cells.

Both the assertion and reason are true, and the reason is the correct explanation for the assertion.

Both the assertion and reason are true, but the reason is not the correct explanation for the assertion.

The assertion is true, but the reason is false.

The assertion is false, but the reason is true.

Explanation: The capsid does indeed protect the viral genome and determines the virus’s ability to infect specific host cells. The capsomeres’ arrangement aids in the virus’s structural integrity and specificity.

#44. Which of the following statements about the disadvantages of the two-kingdom classification system is false?

The two-kingdom system does not differentiate between prokaryotic and eukaryotic organisms.

It fails to separate photosynthetic and non-photosynthetic organisms within the plant kingdom.

It groups unicellular and multicellular organisms into the same category.

It clearly distinguishes between autotrophic and heterotrophic organisms.

#45. Which of the following groups of organisms are known for their ability to produce antibiotics?

Fungi

Protozoa

Archaebacteria

Eubacteria

#46. Fungi develop fruiting bodies in which division occurs, resulting in the formation of spores.

mitotic, diploid

reduction, haploid

mitotic, haploid

reduction, diploid

#47. Lichens, which are composite organisms formed from a fungus and a photosynthetic alga, have which of the following incorrect statements?

They are sensitive to air pollution since they cannot excrete toxins.

The algal partner (phycobiont) and fungal partner (mycobiont) have a mutual relationship.

Algae produce food for fungi, while fungi provide shelter and absorb water and minerals for

None of these statements are incorrect.

#48. The statements below pertain to which organism? (a) They have a protein-rich pellicle instead of a cell wall, allowing flexibility. (b) They possess two flagella, one short and

Dinoflagellates.

Slime molds.

Desmids and diatoms.

Euglena

#49. The sole members of the kingdom Monera are __________.

Algae

Bacteria

Fungi

Protozoa

#50. Coprophilous fungi grow on:

"Bark of trees"

"Animal dung"

"Dead organic matter"

"Soil"

Finish

Results

#1. Assertion: Viruses are non-cellular organisms that do not have a cellular structure. Reason: Viruses are considered non-living because they cannot carry out metabolic processes on their own and require a host cell for replication.

#2. Which group of organisms is characterized by having a single-celled body structure and is known for its ability to cause malaria?

#3. Which of the following groups of protists are responsible for a significant portion of photosynthesis in marine environments?

#4. Certain cyanobacteria can fix atmospheric nitrogen in specialized cells known as:

#5. The protozoan Trypanosoma is responsible for which of the following diseases?

#6. Identify the correct statement.

#7. Which characteristics belong to slime moulds? (a) They are saprophytic. (b) They form plasmodium under favorable conditions. (c) Their spores have true cell walls. (d) Their spores are dispersed by water. (e) Their bodies move along decaying organic matter.

#8. What is the mode of nutrition in fungi?

#9. Which of the following is NOT a characteristic of dinoflagellates?

#10. Which statement is incorrect?**

#11. Which of the following statements about the structure of viruses is false?

#12. In the five-kingdom classification proposed by Whittaker, eukaryotic organisms are included in which kingdoms?

#13. What is the haploid sexual spore produced exogenously?

#14. Which of the following is NOT a characteristic of prions?

#15. Dinoflagellates possess:

#16. Assertion (A): Slime moulds form a structure called plasmodium under favorable conditions. Reason (R): Plasmodium in slime moulds serves to engulf organic material and can grow to cover a large surface area.

#17. In the life cycle of plants, the term

#18. Which of the following statements is accurate?

#19. Which of the following statements about the Kingdom Plantae is correct?

#20. Which of the following criteria did R.H. Whittaker use for his five-kingdom classification system? (a) Cell structure (b) Body organization (c) Mode of nutrition (d) Reproduction (e) Phylogenetic relationships (f) Habitat (g) Biochemical differences

#21. Which of the following is the primary reason why viruses are not classified as living organisms in Whittaker’s five-kingdom classification?

#22. According to the six-kingdom system, how many kingdoms are included within Domain Eukarya?

#23. Viral symptoms observed in plants can include:

#24. Which of the following is the correct sequence of events in the sexual reproduction of fungi?

#25. Which of the following is an example of a parasitic plant?

#26. Aristotle was one of the first to attempt a scientific classification of living organisms. How did he classify plants and animals?

#27. The term prokaryote :

#28. Assertion (A): Red tides are caused by rapid multiplication of red-colored euglenoids. Reason (R): Certain dinoflagellates, such as Gonyaulax, undergo rapid reproduction and release toxins.

#29. The soap-box-like cell wall is characteristic of:

#30. Which of the following is NOT true regarding the function of algae and fungi in lichens?

#31. Viroids differ from viruses in that they are:**

#32. Which of the following is a unique feature of bacteria?

#33. In which of the following environments can halophilic Archaebacteria be found?

#34. Which of the following protists exhibits a saprophytic lifestyle, moving along decaying matter and forming a plasmodium?

#35. Which of the following is a characteristic of Archaebacteria?

#36. Which of the following best describes the mode of reproduction of viruses?

#37. T.O. Diener is known for discovering which of the following?

#38. Which of the following is not a characteristic of the kingdom Monera?

#39. Assertion (A): Diatomaceous earth is a valuable resource for various industrial applications, including filtration and polishing. Reason (R): Diatomaceous earth is composed of accumulated cell walls of dinoflagellates, rich in cellulose.

#41. If hyphae are continuous tubes filled with multinucleated cytoplasm, they are known as:

#42. Which of the following bacteria is responsible for nitrogen fixation in the roots of leguminous plants?

#44. Which of the following statements about the disadvantages of the two-kingdom classification system is false?

#45. Which of the following groups of organisms are known for their ability to produce antibiotics?

#46. Fungi develop fruiting bodies in which ______ division occurs, resulting in the formation of ______ spores.

#47. Lichens, which are composite organisms formed from a fungus and a photosynthetic alga, have which of the following incorrect statements?

#48. The statements below pertain to which organism? (a) They have a protein-rich pellicle instead of a cell wall, allowing flexibility. (b) They possess two flagella, one short and

#49. The sole members of the kingdom Monera are __________.

#50. Coprophilous fungi grow on:

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#46. Fungi develop fruiting bodies in which division occurs, resulting in the formation of spores.