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Free download in PDF Fibrous and Globular Proteins Short Questions & Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
A mutation has changed an isoleucine residue of a protein to Glutamic acid, which statement best describes its location in a hydrophilic exterior-
[A]
On the surface since it is hydrophilic in nature
[B]
In side the core of the protein since it is hydrophobic in nature
[C]
Any where inside or outside
[D]
Inside the core of protein since it has a polar but uncharged side chain
Answer: On the surface since it is hydrophilic in nature
42
Glycine and proline are the most abundant amino acids in the structure of-
[A]
Hemoglobin
[B]
Myoglobin
[C]
Insulin
[D]
Collagen
43
Some proteins contain additional amino acids that arise by modification of an amino acid already present in a peptide, examples include-
[A]
4 -hydroxy proline
[B]
5- hydroxy Lysine
[C]
Gamma Amino Butyric Acid
[D]
All of the above
44
Choose the incorrect statement out of the followings-
[A]
Only L amino acids are found in the biological system
[B]
Glycine is optical inactive
[C]
Tyrosine is a modified amino acid
[D]
Seleno cysteine is 21 st amino acid
Answer: Tyrosine is a modified amino acid
45
Choose a nano peptide out of the followings-
[A]
Oxytocin
[B]
Vasopressin
[C]
Bradykinin
[D]
All of the above
46
Which out of the following amino acids carries a net positive charge at the physiological p H ?
[A]
Valine
[B]
Leucine
[C]
Isoleucine
[D]
None of the followings
Answer: None of the followings
47
Which out of the following amino acids is a precursor for a mediator of allergies and inflammation?
[A]
Histidine
[B]
Tyrosine
[C]
Phenyl Alanine
[D]
Tryptophan
48
Mother of a mal nourished child has been instructed to include a complete protein in diet for her child, which out of the followings proteins should be recommended?
[A]
Pulses
[B]
Wheat
[C]
Soy Protein
[D]
Milk
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