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Biological Classification MCQs for NEET — Botany Questions with Answers

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Which of the following is not archaebacteria?

A. Halophile B. Thermoalkalophiles C. Methanogens D. Thermoacidophiles

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Explanation

NCERT page number 19, para-2 Archaebacteria

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Hot spring hosts which kind of archaebacteria?

A. Thermoacidophiles B. Thermoalkalophiles C. Thermophiles D. Thermoneutrophiles

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Explanation

NCERT page number 19, para-2

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The specialised cells to fix atmospheric nitrogen is called as

A. Heterocyst B. Heterocyte C. Heterocoem D. Heterolog

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Explanation

NCERT page number 19, para-3

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Which of the following is correct with respect to heterocyst

A. Nostoc, Anabena B. Only Anabena C. Nostoc D. All eubactetia

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Explanation

NCERT page number 19, para-3

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Chemosynthetic autotrophic bacteria does not help in recycling of

A. Nitrogen B. Iron C. Sulphur D. Mangnese

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Explanation

NCERT page number 19, para-3

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Chemosynthetic bacteria does not use which inorganic substrate?

A. Nitrites B. Nitrates C. Chlorides D. Both a and b

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Explanation

NCERT page number 19, para-3

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Chemosynthetic autotrophs derive energy by

A. By sunlight B. By oxidation of inorganic substances C. By reduction of inorganic substances D. By reduction followed by oxidation of inorganic substances

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Explanation

NCERT page number 19; para-3

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Which of the following is not a bacterial disease

A. Citrus canker B. Cholera C. Plague D. Mumps

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Explanation

NCERT page number 20, para-1

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------- mycoplasma are pathogenic in …….

A. Many, animals and plants B. All, animals and plants C. All, animals D. All, plants

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Explanation

NCERT page number 20, para-3

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Which of the following features does not go with characteristics of chrysophytes

A. Diatoms+ Desmids B. Rarely photosynthetic C. Plankton D. Found in both type of aquatic habitat ie marine and fresh water

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Explanation

Chrysophytes are photosynthetic protists that contain chloroplasts. They are commonly found in both freshwater and marine environments as plankton. Therefore, the option 'Rarely photosynthetic' does not align with the characteristics of chrysophytes.

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