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.
- 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.
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.
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.
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.
