Biology-Objective Related Question Answers
651. Which converts starch into maltose?
Saliva
652. Which is the largest sense organ of the human body?
Skin
653. Which blood group is known as 'universal donor'?
The 'O' group
654. Which blood group is called universal recepient?
The AB group
655. Which substance present in the skin is converted into Vitamin D by ultra violet radiations of the sun?
Ergosterol
656. The human organ that destroys the worn out or damaged red cells and produces lymphocytes?
Spleen
657. What is the life of a red blood cell?
The life of a red blood cell is 120 days
658. Which is the first bone of the vertebral column?
Atlas
659. Which is the second vertebral column?
Axis
660. Which is the largest and strongest vertebrae in the vertebral column?
Lumbar vertebrae
661. Number of spinal nerves in man?
31 pairs
662. Where is Rods and Cones present?
Retina
663. How is Myopia corrected?
Concave lens
664. How many cranial nerves are present in man?
12 pairs
665. Which is the master gland of the body?
Pituitary gland
666. Which hormone helps in childbirth?
Oxytocin
667. What is the blood pressure of a normal adult man?
120/80 mm Hg
668. Name a vestigial organ in the alimentary canal of man:?
Vermiform appendix
669. Which vitamin is produced inside the human body?
Vitamin-D
670. Bacteria residing in the intestine produce a particular vitamin called?
Vitamin K
671. Which enzyme works in an acidic medium?
Pepsin
672. Which material is essential for the formation of Red blood cells?
Folic acid
673. Which gland helps to maintain the calcium content in blood?
Parathyroid
674. Which disease is caused by the infection of HIV virus?
AIDS
675. What is the name of the test for the detection of AIDS?
Eliza test
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