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Biology

Biology
Which of the following is the cellular respiratory centre?

Mitochondria
Nucleus
Ribosome
Golgi body

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Biology
The corner of the cells of collenchyma tissue in plant are thickened due to deposition of ________

Chitin and lignin
Cellulose and pectin
Lignin and suberin
Suberin and cutin

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Biology
Image of object is is formed on which part of eye

Retina
Iris
Cornea
Choroid

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Biology
The first heart transplantation was performed by

Dr. C. Barnard
Dr. Louis Pasteur
Sir F.G. Hafkin
Dr. W. Harbe

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Biology
The trypsinogen is an enzyme secreted by the

Illeum
Pancrease
Duodenum
Liver

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Biology
Our skin, when exposed to excess sunlight, becomes dark. This is because our skin pigments called

melanin
carotene
flavoxanthin
Xanthophyll

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MORE MCQ ON Biology

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