what are heterocyclic amino acids? i mean understand how amino acids are cyclic in the first place.

plz explain this .. and tell me do i need to know it for NEET?

then what are non non protein amino acids?

which is the sweetest sugar?

amino acids exists as zwitterionic form.give its structure.why is it formed?

how we differentiate between elements it is micromolecule and macromolecule?

Describe the important properties of enzymes.

What is meant by K_m value in enzyme reaction? What does it indicate?

why do amino acids change their structure in different pH

What are proteins? Describe the primary, secondary, tertiary and quarternary structures of protein in detail.

differentiate between saturated and unsaturated fatty acids.give one example for each

which ar essential and non essential amino acids?

plz tell me about  primary and secondary metabolites.

describe different types of carbohydrates with examples

what are nucleotides and nucleosides?