Which one of the following does not exhibit the phenomenon of mutarotation?
1. (+) Sucrose
2. (+) Lactose
3. (+) Maltose=
4. (-) Fructose
In DNA, the complementary bases are:
1. Adenine and thymine; guanine and cytosine
2. Adenine and thymine; guanine and uracil
3. Adenine and guanine, thymine and cytosine
4. Uracil and adenine; cytosine and guanine
Cellulose is a straight-chain polysaccharide composed of only :
1. D-glucose units joined by - glycosidic linkage.
2. D-glucose units joined by - glycosidic linkage.
3. D-galactose units joined by - glycosidic linkage.
4. D-galactose units joined by - glycosidic linkage.
-D (+) glucose and -D (+) glucose are :
1. Diastereomers
2. Epimers
3. Anomers
4. Enantiomers
An insoluble biomolecule in water is-
1. | -keratin | 2. | Haemoglobin |
3. | Ribonuclease | 4. | Adenine |
The biomolecule that contain non-transitional metal ion is:
1. Vitamin
2. Chlorophyll
3. Haemoglobin
4. Insulin
The human body does not produce :
1. | DNA | 2. | Vitamins |
3. | Hormones | 4. | Enzymes |
Insulin regulates the metabolism of :
1. | Minerals | 2. | Amino acids |
3. | Glucose | 4. | Vitamins |
An acids among the followingthat acts as vitamin is:
1. Benzoic acid
2. Ascorbic acid
3. Oxalic acid
4. Formic acid
A linkage present in proteins and peptides is:
1. | 2. | ||
3. | 4. |