The most basic amino acid is

(a)

Arginine

(b)

Histidine

(c)

Glycine

(d)

Glutamine

An example of feedback inhibition is

(a)

Cyanide action on cytochrome

(b)

Sulpha drug on folic acid synthesiser bacteria

(c)

Allosteric inhibition of hexokinase by glucose-6-phosphate

(d)

The inhibition of succinic dehydrogenase by malonate

Enzymes that catalyse interconversion of optical, geometrical or positional isomers are ______________

(a)

Ligases

(b)

Lyases

(c)

Hydrolases

(d)

Isomerases

Proteins perform many physiological functions. For example some functions as enzymes. One of the following represents an additional function that some proteins discharge:

(a)

Antibiotics

(b)

Pigment conferring colour to skin

(c)

Pigments making colours of flowers

(d)

Hormones

Membrane lipids are ____________.

(a)

Phospholipids

(b)

Steroids

(c)

Waxes

(d)

Wax

Insulin is a polymer of____________________________  

(a)

sucrose

(b)

fructose

(c)

glucose

(d)

maltose

Distinguish between nitrogenous base and a base found in inorganic chemistry.

What is tRNA?

Define monosaccharide.

What is chitin made up of?

Define the term amphoteric.

Explain briefly anabolic reactions.

Define the terms nucleotide and nucleoside?

Mention any two sulphur containing amino acids.

Differentiate Prokaryotic mRNA and Eukaryotic mRNA?

Explain Polysaccharide with an example.

Describe the test for reducing sugars.

Define triglycerides. Explain with examples.

What are Allosteric enzymes? Explain with suitable example.

Explain ribosomal RNA. Add a note on its function.

Describe the types of RNA.

Explain the different types of protein bonding