Chap. 3 + 4

Question 1

Acid, Neutral, Base

Answer 1

1. Acid- More Hydrogen ions
2. Neutral- Equal hydrogen and hydroxide ions
3. Base- More Hydroxide ions

Question 2

7 Chemical groups in chemical reactions

Answer 2

1. Hydroxyl
2. Carbonyl
3. Carboxyl
4. Amino
5. Sulfhydryl
6. Phospate
7. Methyl (Non-reactive)

Question 3

Hydroxyl

Answer 3

1. OH-
2. Polar due to negative oxygen
3. Forms hydro bonds with water
4. Alchohol

Question 4

Carbonyl

Answer 4

1. C=O
2. Acetone
3. Ketoses
4. Aldoses

Question 5

Carboxyl

Answer 5

1. -COOH
2. Acts as acid

Question 6

Amino

Answer 6

1. -NH2
2. Acts as base

Question 7

Sulfhydryl

Answer 7

1. -SH
2. Cystine; sulfur-containing amino acid
3. Stabalize protein structure
4. Thiol

Question 8

Phosphate

Answer 8

1. -OPO3^2-
2. Negative charge
3. Grants molecule ability to react with water, releasing energy

Question 9

Methyl

Answer 9

1. -CH3
2. Affects expression of genes
3. Affects shape and function of sex hormones

Question 10

Hydrogen (elec)

Answer 10

1

Question 11

Oxygen (elec)

Answer 11

8

Question 12

Nitrogen (elec)

Answer 12

7

Question 13

Carbon (elec)

Answer 13

6

Question 14

Methane Formula

Answer 14

CH4

Question 15

Ethane

Answer 15

C2H6

Question 16

Ethene

Answer 16

C2H4

Question 17

Hydrocarbon Properties

Answer 17

1. Hydrophobic
2. Nonpolar
3. Good source of stored energy

Question 18

Found in all amino acids

Answer 18

1. Carboxyl ( -COOH)
2. Amino ( - NH)

Question 19

(MS) Hydroxyl

Answer 19

1. -OH

Question 20

(MS) Carbonyl

Answer 20

1. C=O

Question 21

(MS) Carboxyl

Answer 21

1. O=C-O or OH

Question 22

(MS) Amino

Answer 22

1. H-N-H

Question 23

(MS) Sulfhydryl

Answer 23

1. -SH

Question 24

(MS) Phosphate

Answer 24

1. O-P-O

Question 25

(MS) Methyl

Answer 25

1. CH3
2. Will have N and O