Lectures 2 and 3 Amino Acid

Question 1

Chiral

Answer 1

When an alpha carbon has 4 different substitutes

Question 2

Non-Polar

Answer 2

Hydrophobic(water fearing)
Unable to form H-Bonds because mainly Carbons

Question 3

Polar

Answer 3

Hydrophilic
Mainly associated w/ O, N and S
Can form Hydrogen bonds, ionic bonds and covalent bonds

Question 4

Hydrophobic Effect

Answer 4

When uncharged tend to aggregate in aqueous environments

Question 5

Covalent Bond

Answer 5

Main covalent bonds are those when forming a peptide chain
Sharing of Electrons
Strongest one

Question 6

Polar Covalent Bond

Answer 6

When electrons are shared by atoms w/ different E- Negativity

Question 7

Permanent Dipole

Answer 7

When atoms share electrons but unequally resulting in a net + or -

Question 8

Peptide bond

Answer 8

When the Carboxyl and amino groups form a non covalent bond

Question 9

Disulfide bond

Answer 9

When S-S bond

Question 10

Ionic bond

Answer 10

Transfer of electrons
not so strong

Question 11

pH

Answer 11

pH=-log[H+]

Question 12

pKA

Answer 12

pH=pKa + log [Conj base]/[Conj acid]

Question 13

pI

Answer 13

Isoelectric Point

Question 14

Amino Group

Answer 14

the R group do not need to know them