Biological Classification (11Th Neet)

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#1. 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.

#2. Which of the following viruses is typically composed of a double-stranded DNA genome?

Tobacco mosaic virus

Hepatitis C virus

Bacteriophage

Influenza virus

#3. Coenocytic mycelium can be found in which of the following?

"Deuteromycetes"

"Phycomycetes"

"Ascomycetes"

"All of these"

#4. ) Fill in the blanks: Fungi are (1) organisms and their cell walls are made up of (2).

1) Heterotrophic, 2) Chitin and cellulose

1)Heterotrophic , 2)Chitin and polysaccharides

1) Photosynthetic, 2) Polysaccharides and proteins

1) Symbiotic, 2) Proteins and cellulose

#5. The structure that forms the fruiting body of mushrooms is called:

Mycelium

Hyphae

Basidiocarp

Spores

#6. Which of the following statements regarding Protista is false?

"Boundaries are not defined"

"Primarily aquatic"

"Lack sexual reproduction"

"Have membrane-bound organelles"

#7. 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.

#8. Which of the following is not a characteristic of fungi?

Heterotrophic nutrition

Eukaryotic cell structure

Cell wall made of chitin

Multicellular with chloroplasts

#9. The black rust of wheat is caused by which fungal disease?

"Albugo candida"

"Puccinia"

"Ustilago"

"Claviceps"

#10. 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.

#11. 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.

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

"Ascospore"

"Basidiospore"

"Oospore"

"Zygospore"

#13. Which of the following statements about viruses is true?

Viruses are considered living organisms because they have a cell structure.

Viruses can replicate only within their host cells and are inert outside the host.

All viruses contain both RNA and DNA.

Viruses can independently carry out metabolic processes without the help of a host cell.

#14. Which of the following pairs is incorrectly matched?

Viroid - RNA

Chief producer in ocean - Diatoms

itin plates - Dinoflagellates

Gonyaulax - Red sea

#15. Identify the odd pair among the following.

"Phycomycetes - Aquatic fungi"

"Basidiomycetes - Sac fungi"

"Ascomycetes - Penicillium"

"Basidiomycetes - Puff balls"

#16. 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).

#17. What is the mode of nutrition in kingdom Animalia?

Autotrophic

Heterotrophic

Saprotrophic

Photoautotrophic

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

Streptococcus

Rhizobium

Methanogens

Cyanobacteria

#19. Assertion: The existence of prions challenges the traditional understanding of infectious agents. Reason: Prions, unlike viruses, do not contain nucleic acids but cause diseases by altering the conformation of normal proteins.

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 assertion is correct because prions challenge the traditional view of pathogens, and the reason explains that prions replicate by misfolding other proteins without involving nucleic acids.

#20. Which organisms are microscopic and float freely in both fresh and marine waters?

Chrysophytes

Dinoflagellates

Euglenoids

Slime molds

#21. Phycomycetes display which of the following characteristics?

"Motile zoospores"

"Cellulose in cell walls"

"Asexual spores are produced endogenously"

"All of the above"

#22. Which characteristic defines members of the kingdom Plantae?

Autotrophic, multicellular, with a cell wall made of chitin.

Autotrophic, multicellular, with a cell wall made of cellulose.

Heterotrophic, multicellular, with a cell wall made of chitin.

Heterotrophic, multicellular, with a cell wall made of cellulose.

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

Bacteriophage

Free infectious RNA

Free infectious DNA

Infectious protein

#24. 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.

#25. 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.

#26. How many of the following fungi belong to the Ascomycetes class?

"Five"

"Seven"

"Nine"

"Ten"

#27. Which characteristic defines the artificial system established by Carlous Linnaeus?

Based on evolutionary trends.

Phylogenetic in nature.

Determined by the number of traits.

Relies on a few superficial morphological similarities and differences.

#28. Which of the following protists are known for their photosynthetic ability and have pigments similar to higher plants?

Euglenoids

Slime moulds

Amoeboid protozoans

Flagellated protozoans

#29. Which kingdom includes organisms that are unicellular, prokaryotic, and do not have a membrane-bound nucleus?

Plantae

Animalia

Protista

Monera

#30. Select the correct statement(s) regarding Euglenoids: Statement I: Euglenoids have a cell wall made of cellulose. Statement II: Euglenoids can switch to a heterotrophic mode of nutrition in the absence of sunlight.

Only Statement II is correct.

Only Statement I is correct

Both Statements I and II are correct

Neither Statement I nor II is correct

#31. 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

#32. Which of the following groups of protists are known for leaving behind ‘diatomaceous earth’ as deposits due to their silica cell walls?

Euglenoids

Chrysophytes

Slime Moulds

Dinoflagellates

#33. 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.

#34. The two-kingdom classification system does not differentiate between which of the following categories?

Eukaryotes and prokaryotes.

Unicellular and multicellular organisms.

Photosynthetic (e.g., green algae) and non-photosynthetic (e.g., fungi) organisms.

All of the above.

#35. 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.

#36. Which of the following is correctly matched?

"Agaricus - Smut"

"Ustilago - Mushroom"

"Puccinia - Insectivorous plant"

"Deuteromycetes - Imperfect fungi"

#37. The reproductive structures that produce ascospores are known as:

Basidia

Asci

Spores

Setae

#38. Which group of fungi primarily reproduces asexually by means of conidia?

"Zygomycetes"

"Chytridiomycetes"

"Ascomycetes"

"Basidiomycetes"

#39. Which of the following organisms are known to have a symbiotic relationship with fungi?

Lichens

Mushrooms

Yeast

Protozoa

#40. Which is not a feature of viruses?

They have a cellular structure.

They can replicate within living host cells.

They can cause diseases in plants animals and humans.

They are acellular and consist of DNA or RNA inside a protein coat.

#41. 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.

#42. Which of the following is an example of a eukaryotic organism from the kingdom Protista?

Bacteria

Mushrooms

Paramecium

Blue-green algae

#43. 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.

#44. Which of the following is a unique feature of marine forms of amoeboid protozoans?

"Presence of flagella for locomotion"

"A silica-based shell covering the cell body"

"Ability to photosynthesize in low light"

"Formation of colonies in freshwater environments"

#45. The following characteristics are assigned to which group? (a) Mycelium is branched and septate. (b) Generally, no asexual spores are formed. (c) Vegetative reproduction through fragmentation is common. (d) Absence of sex organs, but sexual reproduction occurs via somatogamy. (e) Karyogamy and meiosis occur in basidia, forming four haploid basidiospores. (f) Basidia are arranged in basidiocarp

Penicillium

Agaricus

Algal fungi

Fungi imperfecti

#46. Which of the following is a characteristic feature of fungi?

Presence of chlorophyll

Cell walls containing cellulose

Absence of cell wall

Cell walls containing chitin

#47. Assertion (A): Penicillium belongs to the Ascomycetes class and produces antibiotics. Reason (R): Ascomycetes are known for their fruiting body ascospores.dies and reproduction

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.

Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.

Assertion is true, but Reason is false.

Both Assertion and Reason are false.

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

#49. Coprophilous fungi grow on:

"Bark of trees"

"Animal dung"

"Dead organic matter"

"Soil"

#50. 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.

Finish

2 thoughts on “Biological Classification (11Th Neet)”

Rupesh chaudhari

November 10, 2024 at 11:08 am

Such a wonderful interface this website has! Nice and challenging questions. Keep posting such quizzes as it helps to improve the score.
YK47

November 11, 2024 at 3:23 pm

Very nice questions for revision.
This quiz is much helpful.
Absolutely worth for preparation
Kudos to Adesh Walke sir

Results

#1. Dinoflagellates possess:

#2. Which of the following viruses is typically composed of a double-stranded DNA genome?

#3. Coenocytic mycelium can be found in which of the following?

#4. ) Fill in the blanks: Fungi are __________ (1) organisms and their cell walls are made up of __________ (2).

#5. The structure that forms the fruiting body of mushrooms is called:

#6. Which of the following statements regarding Protista is false?

#7. 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.

#8. Which of the following is not a characteristic of fungi?

#9. The black rust of wheat is caused by which fungal disease?

#10. Identify the correct statement.

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

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

#13. Which of the following statements about viruses is true?

#14. Which of the following pairs is incorrectly matched?

#15. Identify the odd pair among the following.

#16. 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.

#17. What is the mode of nutrition in kingdom Animalia?

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

#19. Assertion: The existence of prions challenges the traditional understanding of infectious agents. Reason: Prions, unlike viruses, do not contain nucleic acids but cause diseases by altering the conformation of normal proteins.

#20. Which organisms are microscopic and float freely in both fresh and marine waters?

#21. Phycomycetes display which of the following characteristics?

#22. Which characteristic defines members of the kingdom Plantae?

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

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

#26. How many of the following fungi belong to the Ascomycetes class?

#27. Which characteristic defines the artificial system established by Carlous Linnaeus?

#28. Which of the following protists are known for their photosynthetic ability and have pigments similar to higher plants?

#29. Which kingdom includes organisms that are unicellular, prokaryotic, and do not have a membrane-bound nucleus?

#30. Select the correct statement(s) regarding Euglenoids: Statement I: Euglenoids have a cell wall made of cellulose. Statement II: Euglenoids can switch to a heterotrophic mode of nutrition in the absence of sunlight.

#32. Which of the following groups of protists are known for leaving behind ‘diatomaceous earth’ as deposits due to their silica cell walls?

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

#34. The two-kingdom classification system does not differentiate between which of the following categories?

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

#36. Which of the following is correctly matched?

#37. The reproductive structures that produce ascospores are known as:

#38. Which group of fungi primarily reproduces asexually by means of conidia?

#39. Which of the following organisms are known to have a symbiotic relationship with fungi?

#40. Which is not a feature of viruses?

#41. 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.

#42. Which of the following is an example of a eukaryotic organism from the kingdom Protista?

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

#44. Which of the following is a unique feature of marine forms of amoeboid protozoans?

#46. Which of the following is a characteristic feature of fungi?

#47. Assertion (A): Penicillium belongs to the Ascomycetes class and produces antibiotics. Reason (R): Ascomycetes are known for their fruiting body ascospores.dies and reproduction

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

#49. Coprophilous fungi grow on:

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

2 thoughts on “Biological Classification (11Th Neet)”

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#4. ) Fill in the blanks: Fungi are (1) organisms and their cell walls are made up of (2).