The disease caused by deficiency of vitamin B₁ is:

Which of the following is not a fat-soluble vitamin?

1. Vitamin A 

2. Vitamin B complex

3. Vitamin D 

4. Vitamin E

Which of the following hormones contains iodine?

1. Insulin

2. Testosterone

3. Adrenaline

4. Thyroxine

Which one of the following vitamins is water-soluble?

During the process of digestion, the proteins present in food materials are
hydrolysed to amino acids as shown below.

Proteins  \(\xrightarrow[]{\textbf{Enzyme(A)}}\mathrm{}\) Polypeptides  \(\xrightarrow[]{\textbf{Enzyme(B)}}\mathrm{}\)  Amino acids
 
Enzymes (A) and (B)  are respectively:
 

Which one of the following is a peptide hormone?

1. Glucagon

2. Testosterone

3. Thyroxin

4. Adernaline