Nucleic acids

Question 1

What does the primary structure do

Answer 1

The primary structure determines is the subsequent high structures due to positioning of the amino acids

Question 2

Secondary Structure

Answer 2

Primary structure folds due to positive and and negative charge on -C=0 group and N-H group in the peptide bond forming h- bonds.

Question 3

Tertiary Structure-

Answer 3

It folding to a tertiary structure depends on the arrangement of amino acids which lead to the formation ionic bonds and disulfide bridges.

Question 4

Quaternary Structure

Answer 4

two or more polypeptides

Question 5

Properties of enzymes

Answer 5

1. Globular tertiary structures
2. Act as biological catalysts
3. Never used up in a reaction

Question 6

Activation energy

Answer 6

Energy required to break existing bonds
Needed to stop repulsion between reacting molecules
By holding substrate in active site, the reduce repulsion and activation energy

Question 7

Specific

Answer 7

Enzyme is complementary to the substrate

Question 8

Lock and key

Answer 8

Substrate complementary active site
fit together
Undergo catalysis

Question 9

Induced fit theory

Answer 9

During E-S formation, a small change occurs on the conformational shape of the protein. Co factors as well affect whether an active site is induced.