Q51. Damage to hearing is caused by sounds which exceed
[A] 100 decibels
[B] 70 decibels
[C] 120 decibels
[D] 80 decibels
Q52. ________ are called the ‘Power houses’ of the cell.
[A] Lungs
[B] Arteries
[C] Pituitary glands
[D] Mitochondria
Q53. What holds the sides of the DNA ladder together?
[A] Ionic bonds
[B] Covalent bonds
[C] Polar covalent bonds
[D] Metallic bonds
Q54. Which of the following is a mixed gland?
[A] Pancreas
[B] Ovary
[C] Pituitary
[D] Adrenal
Q55. The enzyme that is necessary to bring about clotting of blood is
[A] thrombokinase
[B] peptidase
[C] amylase
[D] lipase
Q56. Yellow color of urine is due to presence of
[A] Lymph
[B] Cholesterol
[C] Urochrome
[D] Bile juice
Q57. The total number of pairs of Peripheral nerves in man are
[A] 43
[B] 41
[C] 42
[D] 44
Q58. In diseases like Polio, the cells that get destroyed by virus, are
[A] Erythrocytes
[B] Motor neurons
[C] Monocytes
[D] Sensory neurons
Q59. Which one of the following vitamins is known as the anti sterile factor?
[A] Riboflavin
[B] Niacin
[C] Retinol
[D] Ascorbic acid
Q60. How many ‘canine teeth’ does an adult human have?
[A] 4
[B] 8
[C] 3
[D] 2