UNIT I & UNIT V

The two main intermediate IPP and DMAPP are called as ------------ unit for isoprenoid compounds

• Active isoprene

• Inactive isoprene

• Active diterpenes

• Active monoterpenes

------------ becomes precursor for argenine, ornithine and proline

• Aspartic acid

• Oxaloacetic acid

• Pyruvic acid

• Glutamic acid

-------------- is biosynthesized from cysteine and homoserine

• Methionine

• Glycine

• Cystathionine

• Ornithine

The precursor of indole alkaloids is

• Ornithine

• Phenyl alanine

• Tryptophan

• N-methionine

Which of the following is precursor for biosynthesis of atropine?

• L-Ornithine

• Phenyl alanine

• Tryptophan

• Tyrosine

In gel permeation chromatography molecules are separated on the basis of their

• Chemical nature

• Size and shape

• Absorptive properties

• Partition coefficient

The study of radiofrequency radiation by nuclei is known as

• NMR

• Mass

• Flame photometry

• Voltammetry

Separation of constituents takes place in paper chromatography by

• Adsorption

• Absorption

• Partition

• Polarity

The best locating agent for amino acids after they are separated is

• Sulphuric acid

• Ammonia

• Sodium hydroxide

• Ninhydrine

Soxhletion implicates the process of

• Reflux

• Evaporation

• Distillation

• Sublimation