Which of the following enzymes catalyses the hydrolysis of triglycerides into fatty acids and glycerol?
1. Lipase
2. Zymase
3. Pepsin
4. Maltase
Enzymes are composed of which of the following?
1. Edible proteins.
2. Proteins with specific structures.
3. Nitrogen-containing carbohydrates.
4. Carbohydrates.
Which of the following is not a correct statement?
| 1. | α-carbon of α-amino acid is asymmetric except for glycine. |
| 2. | All proteins of the human body are found in L-form. |
| 3. | The human body can synthesize all the proteins it needs. |
| 4. | At pH = 7, both amino and carboxylic groups exist in ionized form. |
Among the following, reducing sugar is:
1. Galactose
2. Gluconic acid
3. β-methyl galactoside
4. Sucrose
A compound that gives a positive Fehling solution test is:
| 1. | Sucrose | 2. | Glucose |
| 3. | Fats | 4. | Protein |
Which is the correct statement among the following?
| 1. | Starch is a polymer of α-glucose |
| 2. | Amylose is a component of cellulose |
| 3. | Proteins are composed of only one type of amino acid |
| 4. | In the cyclic structure of fructose, there are four carbons and one oxygen atom |
Reducing sugars are -
| 1. | Carbohydrates that reduce Fehling’s solution and Tollen’s reagent. |
| 2. | Carbohydrates that reduce only Tollen’s reagent. |
| 3. | Carbohydrates that reduce only Fehling’s solution . |
| 4. | Carbohydrates that reduce HI |
The term glycosidic linkage means :
| 1. | Two monosaccharide units bonded by an oxygen atom. |
| 2. | Two monosaccharide units bonded by a sulphur atom. |
| 3. | Two peptide units bonded by an oxygen atom. |
| 4. | Two peptide units bonded by an hydrogen atom. |
α-helix structure of proteins is stabilized by :
| 1. | H-bonds formed between the −SH and C=O group. |
| 2. | H-bonds formed between the −NH and C=O group. |
| 3. | Ionic bonds formed between the −SH and C=O group. |
| 4. | Ionic bonds formed between the −NH and C=O group. |