231.

The human body does not produce:

• DNA

• Vitamins

• Hormones

• Hormones

Which one of the following is a peptide hormone?

• Glucagon

• Testosterone

• Thyroxin

• Thyroxin

Which of the following statements is not correct?

• Insulin maintains sugar level in the blood of ahuman body

• Ovalbumin is a simple food reserve in egg-white

• Blood proteins thrombin and fibrinogen are involved in blood clotting

• Blood proteins thrombin and fibrinogen are involved in blood clotting

The difference between amylose and amylopectin is

• Amylopectin have 1 → 4 α-linkage and 1 → 6 α-linkage

• Amylose have 1 → 4 α-linkage and 1 → 6 β-linkage

• Amylose is made up of glucose and galactose

• Amylopectin have 1 → 4 α-linkage and 1 → 6 β-linkage

On hydrolysis of starch, we finally get

• Glucose

• Fructose

• Both (a) and (b)

• Sucrose

In DNA, the complimentary bases are

• adenine and thymine; guanine and cy1osine

• adenine and thymine; guanine and uracil

• adenine and guanine, thymine and cytosine

• uracil and adenine; cytosine and guanine

The general molecular formula for disaccharide is

• C₁₂H₂₂O₁₁

• C₁₀H₂₀O₁₀

• C₁₂H₂₀O₁₀

• C₁₂H₂₂O₁₀

Which one of the following proteins transports oxygen in the blood stream?

• Myoglobin

• Insulin

• Albumin

• Haemoglobin

Proteins are composed of

• $\mathrm{\alpha }$- amino acids

• carbohydrates

• vitamins

• mineral salts

Which of the following does not reduce Fehling's solution?

• Benzaldehyde

• Formic acid

• Glucose

• Fructose