During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process

$\mathrm{Proteins} \stackrel{\mathrm{Enzyme} \left(\mathrm{A}\right)}{\to } \mathrm{Polypeptides}$
$\stackrel{\mathrm{Enzyme} \left(\mathrm{B}\right)}{\to } \mathrm{Amino} \mathrm{acids},$

are respectively                

1. amylase and maltase

2. diastase and lipase

3. pepsin and trypsin

4. invertase and zymase

The helical structure of proteins is established by

1. dipeptide bonds

2. hydrogen bonds

3. ether bonds

4. peptide bonds

The a-D-glucose and b-D-glucose differ from each other due to difference in carbon atom with respect to its

1. conformation

2. configuration

3. number of OH-groups

4. size of hemiacetal ring

Glycolysis is

1. oxidation of glucose to pyruvate

2. conversion of glucose to haem

3. oxidation of glucose to glutamate

4. conversion of pyruvate to citrate

Sucrose in water is dextrorotatory, ${\left[\mathrm{\alpha }\right]}_D=+66.4°$ when boiled with dil.HCl, the solution becomes leavorotatory, ${\left[\alpha \right]}_D=-39.9°.$ In this process the sucrose breaks into

1. L-glucose + D-fructose

2. L-glucose + L-fructose

3. D-glucose + D-fructose

4. D-glucose + L-fructose

Which is not a true statement?

1. a-carbon of a-amino acid is asymmetric except glycine

2. All proteins are found in L-form

3. Human body can synthesis all proteins they need

4. At pH = 7 both amino and carboxylic groups exist in ionised form

Which of the following is correct statement ?

1. Starch is a polymer of a-glucose

2. Amylose is a component of cellulose

3. Proteins are composed of only one type of amino acid

4. In cyclic structure of fructose, there are 6 carbons and one oxygen atom

Glucose molecule reacts with 'X' number of molecules of phenylhydrazine to yield

osazone. The value of 'X' is

1. four

2. one

3. two

4. three

The number of molecules of ATP produced in the lipid metabolism of a molecule of

palmitic acid is

1. 130

2. 36

3. 56

4. 86

The human body does not produce

1. DNA

2. vitamins

3. hormones

4. enzymes