Biology Questions

Q:

A US team of scientists has found that the mechanism responsible for the ageing process is located --

A) Inside the face B) Inside the skin
C) Inside the brain D) Inside the heart
 
Answer & Explanation Answer: C) Inside the brain

Explanation:
The US team of scientists found the mechanism in the hypothalamus, which is located deep inside the brain and showed that it is responsible for the ageing process.
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Q:

Which of the following is responsible for giving colour to human skin?

A) Luciferin B) Haemoglobin
C) Flavonoids D) Melanin
 
Answer & Explanation Answer: D) Melanin

Explanation:
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Q:

Which is the largest gland in human body?

A) Liver B) Thyroid
C) Pituitary D) Salivary gland
 
Answer & Explanation Answer: A) Liver

Explanation:
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Q:

All respiratory equipment must be approved byl  

A) RPSEC B) OSHA
C) NIOSH D) CDC
 
Answer & Explanation Answer: C) NIOSH

Explanation:

The National Institute for Occupational Safety and Health (NIOSH) will approve all respiratory equipment.

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Q:

The largest artery in human body is

A) Aorta B) Capillary
C) Vena cava D) Pulmonary vein
 
Answer & Explanation Answer: A) Aorta

Explanation:
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1 1775
Q:

Which of the following is an emergency hormone in humans?

A) Thyroxine B) Insulin
C) Adrenalin D) Progestrone
 
Answer & Explanation Answer: C) Adrenalin

Explanation:
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Q:

Kwashiorkor  disease  in  children  is  caused by

A) sufficient carbohydrates but less fats in diet B) sufficient  carbohydrates  and  fats  but deficient proteins in diet
C) sufficient  vitamins  but  deficient  fats  in diet D) sufficient  fats  but  deficient  vitamins  in diet
 
Answer & Explanation Answer: B) sufficient  carbohydrates  and  fats  but deficient proteins in diet

Explanation:

Kwashiorkar is produced by protein deficiency unaccompanied by calorie  deficiency.  It  results  from the  replacement  of  mother’s  milk by a high calorie-low protein diet in a child more than one year in age. Like marasmus, kwashiorkor shows wasting   of   muscles,   thinning   of limbs,  failure  of  growth  and  brain development

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Q:

Which among the following is used to treat Indigestion?

A) Antacid B) Antiseptic
C) Analgesic D) Antibiotic
 
Answer & Explanation Answer: A) Antacid

Explanation:
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