1
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Given below are 4 statements about Insulin. Which of these statement/(s) is/are correct?

[A] Insulin is a globular protein consisting of 51 Amino acids.

[B] Insulin is constituted of 3 polypeptide chains linked together.

[C] Insulin is constituted of 2 polypeptide chains linked together by disulphide bonds.

[D] The 3 polypeptide chains in Insulin are linked together by Hydrogen bonding.

A
[D]
B
[A] & [C]
C
[B] & [D]
D
[B]
2
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following hexoses will form the same osazone when treated with excess phenyl hydrazine?

A
D-glucose, D-fructose and D-galactose
B
D-glucose, D-fructose and D-mannose
C
D-glucose, D-mannose and D-galactose
D
D-fructose, D-mannose and D-galactose
3
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Pick out the incorrect statement(s) from the following.

1. Glucose exists in two different crystalline forms, $$\alpha$$-D-glucose and $$\beta$$-D-glucose.

2. $$\alpha$$-D-glucose and $$\beta$$-D-glucose are anomers.

3. $$\alpha$$-D-glucose and $$\beta$$-D-glucose are enantiomers.

4. Cellulose is a straight chain polysaccharide made of only $$\beta$$-D-glucose units.

5. Starch is a mixture of amylase and amylopectin, both contain unbranched chain of $$\alpha$$-D-glucose units.

A
1 and 2 only
B
2 and 3 only
C
3 and 4 only
D
3 and 5 only
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following is an important component of chlorophyll?

A
Mn
B
Mg
C
Fe
D
Zn
COMEDK Subjects
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