121. |
What is main source of keratin ?
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Answer:
Option (d) |
122. |
By which bond, the polypeptide chains are joined in tertiary structure of protein ?
(P) van der Waal's attraction (Q) H- bond
(R) Ionic bond (S) Disulphide bond
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Answer:
Option (c) |
123. |
By which type secondary structure of protein can be shown ?
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Answer:
Option (d) |
124. |
In α–helix shaped protein, polypeptide chain is coiled in _____ shape.
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Answer:
Option (c) |
125. |
Approximate _____ amino acids are included per turn of the helix in α–helix shaped protein.
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Answer:
Option (b) |
126. |
In β–pleated sheet shaped protein, one peptide chain forms intermolecular _____ bond with adjacent polypeptide chain.
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Answer:
Option (b) |
127. |
What is the effect of denaturation on proteins ?
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Answer:
Option (b) |
128. |
Most globular proteins become denatured when heated above _____ temperature.
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Answer:
Option (a) |
129. |
Mention use of trichloro acetic acid ?
|
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Answer:
Option (d) |
130. |
How many times enzymes can increases the rate of reaction ?
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Answer:
Option (c) |