Biology Questions Answers

• 57. The quantity of human blood is what percent of total weight ?

  1. 5%
  2. 6%
  3. 7%
  4. 8%

  Answer And Explanation

  Answer: Option C

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• 58. Pigmentation of skin is due to :

  1. leucocytes
  2. lymphocytes
  3. monocytes
  4. melanocytes

  Answer And Explanation

  Answer: Option D

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• 59. What is pH value of human blood ?

  1. 7
  2. 7.2
  3. 7.4
  4. 7.8

  Answer And Explanation

  Answer: Option C

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• 60. On an average how many litres of blood a human body have ?

  1. 2-3 litre
  2. 5-6 litre
  3. 8-10 litre
  4. 12-14 litre

  Answer And Explanation

  Answer: Option B

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• 61. Liver is largest gland of Human body ?

  1. True
  2. False

  Answer And Explanation

  Answer: Option A

  Explanation:

  Its weight is approx 1.5 - 2 kg

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• 62. The blood pressure of normal human is ?

  1. 120 / 80
  2. 110 / 90
  3. 120 / 90
  4. 110 / 80

  Answer And Explanation

  Answer: Option A

  Explanation:

  The blood pressure of normal human is Systolic - 120 and Diastolic - 80

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• 63. Which is not a type of protein ?

  1. Simple Protein
  2. Complex Protein
  3. Conjugated Protein
  4. Derived Protein

  Answer And Explanation

  Answer: Option B

  Explanation:

  On the basis of chemical composition, proteins are of three types :
  Simple Protein,
  Conjugated Protein,
  Derived Protein.
  

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