CTET Solved Paper - UPTET October 2017 Paper2
76. Islets of Langerhans are present in
- Option : C
- Explanation : (C) The islets of langerhaus cells are present in pancrease. β cells of this produce insulin and α cells produce glycogen. These are harmones.
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- Option : D
- Explanation : (D) All enzymes are chemically proteinaceous in nature. These are biological catalysts and every biological reactions are catalysed by them. These are more than 5000 enzymes present in ting cells.
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78. Which of the following acids is also a vitamin?
- Option : B
- Explanation : (B) Ascorbic acid is a chemical found in all citrus fruits. It is vitamin 'C', use-ful to develop resistance against infections in the body.
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79. If a, a + 2, a + 4 are prime numbers, then the number of values of a is
- Option : A
- Explanation : (A) Given, a, a + 2, a + 4 are prime numbers.
∴ If a = 2 (prime)
then 2, 4, 6 all are not prime numbers.
If a = 3 (prime)
then, 3, 5, 7 all are prime numbers.
If a = 5
then,5, 7, 9 all are not primer numbers.
If a = 7
then, 7, 9, 11 all are not prime numbers.
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80. Find the biggest 4- digit number which is a perfect square
- Option : D
- Explanation : (D) We know that any number which is square of any other number is called perfect square number. Here 9801 is square of 99.
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