Biology Questions

Q:

The thymus gland produces a hormone called

A) thyroxine B) thymosin
C) thyronine D) calcitonin
 
Answer & Explanation Answer: B) thymosin

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Q:

Which of the following is not a plant hormone?

A) Gibberellic B) Auxins
C) Cytokinins D) Thyroxin
 
Answer & Explanation Answer: D) Thyroxin

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Q:

Which of the following is a structural and functional unit of kidneys?

A) Renette Cells B) Flame Cells
C) Nephrites D) Nephrons
 
Answer & Explanation Answer: D) Nephrons

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Q:

In humans, the sound is produced by the ________.

A) oesophagus B) larynx
C) medulla D) epiglottis
 
Answer & Explanation Answer: B) larynx

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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:

Name the source from which Aspirin is produced?

A) Willow bark B) Oak Tree
C) Acacia D) Eucalyptus
 
Answer & Explanation Answer: A) Willow bark

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Q:

Among plants, three different genera Solanum, Petunia and Datura are placed in which family?

A) Cancidae B) Solanaceae
C) Felis D) Felidae
 
Answer & Explanation Answer: B) Solanaceae

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