Which one of the following rotates the plane polarized light towards left?

(a)

D(+) Glucose

(b)

L(+) Glucose

(c)

D(-) Fructose

(d)

D(+) Galactose

Which one given below is a non-reducing sugar?

(a)

Glucose

(b)

Sucrose

(c)

maltose

(d)

Lactose

\(\text { Glucose } \stackrel{(\mathrm{HCN})}{\longrightarrow} \text { Product } \stackrel{(\text { hydrolysis })}{\longrightarrow} \text { Product } \stackrel{(\mathrm{HI}+\text { Heat })}{\longrightarrow} \mathrm{A}\) , the compound A is______.

(a)

Heptanoic acid

(b)

2-Iodohexane

(c)

Heptane

(d)

Heptanol

The central dogma of molecular genetics states that the genetic information flows from______.

(a)

Amino acids Protein DNA

(b)

DNA Carbohydrates Proteins

(c)

DNA RNA Proteins

(d)

DNA RNA Carbohydrates

In a protein, various amino acids linked together by ______.

(a)

Peptide bond

(b)

Dative bond

(c)

\(\alpha\) - Glycosidic bond

(d)

\(\beta\) - Glycosidic bond

In aqueous solution of amino acids mostly exists in ______.

(a)

NH₂-CH(R)-COOH

(b)

NH₂-CH(R)-COO^-

(c)

H₃N⁺-CH(R)-COOH

(d)

H₃N⁺-CH(R)-COO^-

Which one of the following is not produced by body?

(a)

DNA

(b)

Enzymes

(c)

Hormones

(d)

Vitamins

Vitamin B₂ is also known as ______.

(a)

Riboflavin

(b)

Thiamine

(c)

Nicotinamide

(d)

Pyridoxine

The pyrimidine bases present in DNA are ______.

(a)

Cytosine and Adenine

(b)

Cytosine and Guanine

(c)

Cytosine and Thiamine

(d)

Cytosine and Uracil

Which of the following vitamins is water soluble?

(a)

Vitamin E

(b)

Vitamin K

(c)

Vitamin A

(d)

Vitamin B

Complete hydrolysis of cellulose gives ______.

(a)

L-Glucose

(b)

D-Fructose

(c)

D-Ribose

(d)

D-Glucose

If one strand of the DNA has the sequence ‘ATGCTTGA’, then the sequence of complementary strand would be ______.

(a)

TACGAACT

(b)

TCCGAACT

(c)

TACGTACT

(d)

TACGRAGT

Insulin, a hormone chemically is ______.

(a)

Fat

(b)

Steroid

(c)

Protein

(d)

Carbohydrates

α -D (+) Glucose and β-D (+) glucose are ______.

(a)

Epimers

(b)

Anomers

(c)

Enantiomers

(d)

Conformational isomers

Which of the following amino acids are achiral?

(a)

Alanine

(b)

Leucine

(c)

Proline

(d)

Glycine

What type of linkages hold together monomers of DNA?

Give the differences between primary and secondary structure of proteins.

Write the Zwitter ion structure of alanine

Write a short note on peptide bond.

Give two difference between Hormones and vitamins.

What are reducing and non – reducing sugars?

How are vitamins classified?

What are harmones? Give examples

Define enzymes

What are different types of RNA which are found in cell

What are the functions of lipids in living organism.