Lecture 3: Biomolecular Structure

Question 1

What color is oxygen, nitrogen, sulfur, and hydrogen?

Answer 1

Oxygen = red

Nitrogen = blue

Sulfur = yellow

Hydrogen = white

Question 2

Amine (primary, secondary, tertiary)

Answer 2

Question 3

Imidazole

Answer 3

Pka = 6.5

In histidine

Question 4

Amide

Answer 4

Question 5

Primary, secondary, tertiary carbon

Answer 5

Question 6

Primary, secondary, tertiary alcohol

Answer 6

Question 7

Phenol

Answer 7

Question 8

What are dioxanes?

Answer 8

Are cyclic molecules with two oxygens

Question 9

What are Pyrans

Answer 9

Pryans have 6 membered rings: 5 carbons and one oxygen

Question 10

What are furans

Answer 10

Have 5 membered rings: 4 carbons and one oxygen

Question 11

Who has increased susceptibility to attack by a nucleophile carbonyl, ketone, or aldehyde?

Answer 11

1. Carbonyl
2. Aldehyde
3. Ketone

Question 12

Name up to 11 alkane

Answer 12

Methyl

Ethyl

Propyl

Butyl

Pentyl

Hexyl

Heptyl

Octyl

Nonyl

Decyl

Undecyl

Question 13

What are electrophile and nucleuphiles

Answer 13

Nucleophiles love nucleu and are attracted to positive charges so more negatively charged itself

Electrophile: love electrons

Does not have to be formally charged

Question 14

If a structure is a ring, what is added to the name

Answer 14

Cycle and then the name

Question 15

What macromolecules takes the form of pyrans and furans?

What other functional groups do these contain?

Answer 15

Ketones and Aldehydes

Question 16

Who is more acidic a ketone or aldehyde?

Answer 16

aldehyde > ketone

Question 17

What is a tautomer?

Answer 17

Two molecules are tautomers of each other if they are structural isomer and can interconvert

Question 18

What is guanidine

Answer 18

Pka = 12

Found in arginine

Question 19

What functional groups can take part in oxidation reduction?

Answer 19

thioester