Biological Molecules (a)

.A polypeptide chain has –COOH group at one end.Which would be present at the other end?

.If a protein consist of only one polypeptide chain,which structural level is not possible

Protein synthesis in an animal cell occurs

Tertiary structure is maintained by

In Insulin the 2 chains are hold together by

.Which of the following correctly represents the primary structure of proteins?

The number of amino acids in haemoglobin is

.Usually a polypeptide chain bends and folds upon itself to form a globular shape.This is protein’s

quaternary conformation

Name the elements which occur  in nucleic acid macromolecules

29.The reaction between the phosphate group of one nucleotide and -OH group of another is

Replication is

.A promoter site on DNA

.All the terminator codons begin with the nucleotide of

Most important RNA from genetic point of view is

.Maximum formation of mRNA in eukaryote occurs in

Double helix of DNA show

Transcription starts at the RNA polymerase binding site called

Enzymes are essential in our body because these

Which of following combines with non-protein part to form a functional enzyme?

Why do cells contain many different enzymes?

if a non protein part is covalently bonded to enzyme it is called as

An enzyme with its co enzyme and prosthetic group removed is called

enzymes important in photosynthesis are found in

the active site of enzyme is made of how many regions?

The rate of reaction of enzyme depends on____ of enzyme present at a specific time at unlimited substrate conc.

Optimum temperature for enzymes of human body is

Optimum pH for salivary amylase is

The effect of which inhibitor can be neutralized partly or completely by increasing substrate conc

.The rate of an enzyme catalyzed reaction

Antibiotics are useless against viruses because

Which of the following cannot multiply outside the living cells?

Influenza viruses are

Which of the following are well known RNA tumour viruses?

Poliomyelitis is caused by

.Bacteriophage for their reproduction use the biosynthetic machinery of

The first stage in the replication of bacteriophage is

All of  the following are  true about lytic cycle of bacteriophage except

AIDS patient can suffer fromIn

A chemical component found in all viruses is