Question

vi. organic chemistry quiz
matching
a. amino acid (or more than one)
b. glucose (or more than one)
c. nucleotide (or more than one)
d. glycerol
e. fatty acid
f. both glycerol and fatty acids
1.

1. h - n - c - c - oh

| |
h r

1. sugar - base

|
phosphate

1. h - n - c - c - n - c - c - oh

h r h r

1. h - c - o - c - (ch₂)ₙ - ch₃

h - c - o - c - (ch₂)ₙ - ch₃

h - c - o - c - (ch₂)ₙ - ch₃
|
h

1. nucleic acid __, protein , polysaccharide , tripeptide , disaccharide , cellulose __
2. gene __, quick energy , enzyme , long - term stored energy , plant cell wall __
3. peptide bond __, unsaturated , straight chain of ring compounds , hydrocarbon (only carbon and hydrogen) chain , ribose , glycogen , hydrogen bond __

Explanation:

1. Two linked hexagons indicate a disaccharide, which consists of glucose units (option b).
2. Structure with -NH2, -COOH, and R group is an amino acid (option a).
3. Sugar-base-phosphate describes a nucleotide (option c).
4. Two amino acids linked by a peptide bond are amino acids (option a).
5. Glycerol backbone with three fatty acid chains includes both (option f).
6. Nucleic acids form genes; proteins include enzymes; polysaccharides like glycogen; tripeptides are proteins; disaccharides provide quick energy; cellulose is in plant cell walls.
7. Genes are nucleic acids; quick energy from carbohydrates; enzymes are proteins; long-term energy is fat; plant cell walls have cellulose.
8. Peptide bonds in proteins; unsaturated refers to lipids; ring chains are polysaccharides; hydrocarbon chains are fatty acids; ribose is a sugar; glycogen is a polysaccharide; hydrogen bonds in nucleic acids.

Answer:

1. b
2. a
3. c
4. a
5. f
6. gene, enzyme, glycogen, protein, quick energy, plant cell wall
7. nucleic acid, carbohydrates, protein, fat, cellulose
8. protein, lipid, polysaccharide, fatty acid, sugar, polysaccharide, nucleic acid