Biological Classification (11Th Neet)

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#1. The term prokaryote :

Lack a true nucleus

Contain chlorophyll

Are multicellular

Have a well-defined nuclear membrane

#2. 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.

#3. .) Identify the correct statements regarding Mycoplasma: (a) Mycoplasma lacks a cell wall. (b) It is the smallest living organism. (c) Mycoplasma cannot survive without oxygen. (d) Mycoplasma can cause diseases in animals and plants. (e) True sexual reproduction is absent in bacteria. (f) A primitive form of DNA transfer occurs between bacteria.

All except (c).

All of these.

Only (c).

Only (a), (c), and (f).

#4. Which of the following statements is true about bacteria?

All bacteria are unicellular and lack a true nucleus.

Some bacteria are multicellular.

Bacteria have a complex internal structure like eukaryotic cells.

Bacteria are only found in harmful environments.

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

#6. 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.

#7. In the classification system which kingdom includes only multicellular eukaryotic autotrophic organisms?

Animalia

Protista

Fungi

Plantae

#8. What is the main characteristic of organisms in the kingdom Animalia?

They are autotrophic.

They are unicellular.

They are heterotrophic and multicellular.

They have a cell wall made of cellulose.

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

Bacteriophage

Free infectious RNA

Free infectious DNA

Infectious protein

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

"Five"

"Seven"

"Nine"

"Ten"

#11. 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.

#12. 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

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

Fungi

Protozoa

Archaebacteria

Eubacteria

#14. Assertion (A): Diatoms are considered the chief producers in the oceans. Reason (R): Diatoms have silica-embedded cell walls that are indestructible and accumulate over time.

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

#15. 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.

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

Akinetes

Heterocysts

Homocysts

Nodules

#17. The term ‘Prokaryotae’ was coined by Whittaker for which kingdom?

Monera

Plantae

Animalia

Fungi

#18. Which of the following bacteria is responsible for causing cholera?

Streptococcus pneumoniae

Vibrio cholerae

Escherichia coli

Salmonella typhi

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

Autotrophic

Heterotrophic

Saprotrophic

Photoautotrophic

#20. 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"

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

"Malaria"

"Sleeping sickness"

"Amoebiasis"

"Giardiasis"

#22. Which of the following is true about the kingdom Monera?

It consists only of multicellular organisms.

It includes both prokaryotic and eukaryotic organisms.

It contains only unicellular organisms.

It includes both autotrophic and heterotrophic organisms.

Explanation : cyanobacteria is autotrophic member of kingdom monera

#23. Which of the following statements about the Kingdom Monera is correct?

All Monera are multicellular.

Monera are prokaryotic

unicellular organisms.

Monera are mostly heterotrophic.

Monera do not have cell walls.

#24. The pathogen responsible for white rust on mustard belongs to which group?

"Ascomycetes"

"Basidiomycetes"

"Phycomycetes"

"Deuteromycetes"

#25. Which of the following is a key characteristic of Archaebacteria?

Presence of a nuclear membrane

Adaptation to extreme environments

Presence of chloroplasts

Multicellularity

#26. _______ are protists that have two flagella arranged in a unique way: one longitudinally and the other transversely in a groove.

Euglenoids

Dinoflagellates

Chrysophytes

Slime moulds

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

Chrysophytes

Euglenoids

Slime moulds

Ciliated protozoans

#28. 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.

#29. Which of the following statements about methanogens is incorrect?

Methane serves as their preferred carbon source.

They are present in the intestines of various ruminants and produce biogas from their dung.

They belong to the archaebacteria group.

They are typically found in marshy habitats.

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

Euglenoids

Dinoflagellates

Slime moulds

Sporozoans

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

"Zygomycetes"

"Chytridiomycetes"

"Ascomycetes"

"Basidiomycetes"

#32. What is the main distinction between Archaebacteria and Eubacteria?

Archaebacteria are more complex than Eubacteria.

Archaebacteria have a different type of cell wall and live in extreme environments.

Eubacteria have a different type of cell wall and live in extreme environments.

Archaebacteria are larger than Eubacteria.

#33. 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.

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

Plantae

Animalia

Protista

Monera

#35. 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

#36. Which of the following is a correct characteristic of members of the kingdom Protista?

Unicellular and eukaryotic.

Multicellular and prokaryotic.

Unicellular and prokaryotic.

Multicellular and eukaryotic.

#37. ) 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

#38. 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

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

Autotrophic

Heterotrophic

Saprophytic

Both (2) and (3)

#40. Which of the following organisms is not classified within the five kingdom system?**

Protozoans

Viruses

Lichens

Both (2) and (3)

#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 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.

#43. Which of the following statements is correct about the kingdom Animalia?

Animals are multicellular and eukaryotic.

All animals have a cell wall.

Animals are autotrophic.

All animals can perform photosynthesis

#44. These features correspond to: (a) They exhibit colors such as yellow, green, brown, blue, and red based on pigments. (b) Their cell wall is made of stiff cellulosic plates. (c) They possess one longitudinal and one transverse flagellum. (d) They are photosynthetic.

Diatoms

slime moulds

Dinoflagellates

Euglenoids

#45. 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.

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

Mycelium

Hyphae

Basidiocarp

Spores

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

Lichens

Mushrooms

Yeast

Protozoa

#48. What is the main component of the cell wall in fungi?

Cellulose

Chitin

Lignin

Glycogen

#49. 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

#50. 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.

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. The term prokaryote :

#2. Identify the correct statement.

#4. Which of the following statements is true about bacteria?

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

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

#7. In the classification system which kingdom includes only multicellular eukaryotic autotrophic organisms?

#8. What is the main characteristic of organisms in the kingdom Animalia?

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

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

#11. 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.

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

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

#14. Assertion (A): Diatoms are considered the chief producers in the oceans. Reason (R): Diatoms have silica-embedded cell walls that are indestructible and accumulate over time.

#15. 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.

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

#17. The term ‘Prokaryotae’ was coined by Whittaker for which kingdom?

#18. Which of the following bacteria is responsible for causing cholera?

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

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

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

#22. Which of the following is true about the kingdom Monera?

#23. Which of the following statements about the Kingdom Monera is correct?

#24. The pathogen responsible for white rust on mustard belongs to which group?

#25. Which of the following is a key characteristic of Archaebacteria?

#26. _______ are protists that have two flagella arranged in a unique way: one longitudinally and the other transversely in a groove.

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

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

#29. Which of the following statements about methanogens is incorrect?

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

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

#32. What is the main distinction between Archaebacteria and Eubacteria?

#33. Which statement is incorrect?**

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

#35. 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.

#36. Which of the following is a correct characteristic of members of the kingdom Protista?

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

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

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

#40. Which of the following organisms is not classified within the five kingdom system?**

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

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

#43. Which of the following statements is correct about the kingdom Animalia?

#44. These features correspond to: (a) They exhibit colors such as yellow, green, brown, blue, and red based on pigments. (b) Their cell wall is made of stiff cellulosic plates. (c) They possess one longitudinal and one transverse flagellum. (d) They are photosynthetic.

#45. Which of the following statements is accurate?

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

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

#48. What is the main component of the cell wall in fungi?

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

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

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