Biology Questions

Q:

Which of the following plays an important role in photosynthesis?

A) Chloroplast B) Centrosome
C) Tonoplast D) Nematoblast
 
Answer & Explanation Answer: A) Chloroplast

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Q:

__________ are made up of sclerenchymatous cells. These are generally absent in the primary phloem but are found in the secondary phloem.

A) Xylem fibres B) Xylem parenchyma
C) Phloem parenchyma D) Phloem fibres
 
Answer & Explanation Answer: D) Phloem fibres

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Q:

Which of the following is not among the 3 main classes of Algae?

A) Chlorophyceae B) Rhodophyceae
C) Phaeophyceae D) Gymnosperms
 
Answer & Explanation Answer: D) Gymnosperms

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Q:

What is commonly known as 'white plague'?

A) Typhoid B) Malaria
C) Tuberculosis D) Plague
 
Answer & Explanation Answer: C) Tuberculosis

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Q:

A human body works within the pH range of

A) 6.0 to 7.0 B) 6.0 to 6.8
C) 7.0 to 8.6 D) 7.0 to 7.8
 
Answer & Explanation Answer: D) 7.0 to 7.8

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Q:

Which cells give rise to various organs of the plant and keep the plant growing?

A) Permanent B) Dermal
C) Meristematic D) Mature
 
Answer & Explanation Answer: C) Meristematic

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Q:

Majority of the fungal bionts of lichens belong to

A) Baridiomycetes B) Ascomycetes
C) Gomycetes D) Deuteromycetes
 
Answer & Explanation Answer: B) Ascomycetes

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Q:

Ethylene is a ______ molecule.

A) polar B) ionic
C) covalent D) nonpolar
 
Answer & Explanation Answer: D) nonpolar

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