Question

match the description on the left with the correct term on the right. answers will be used more than once.
column a

1. contains c, h, o in a 1:2:1 ratio
2. contains c, h, o, n, p, s
3. an example is vegetable oil
4. the monomer is an amino acid
5. enzymes belong to this group of macromolecules
6. contains c, h, o with less o
7. an example is dna
8. provides long - term energy
9. the monomer is a monosaccharide
10. contains an amino group

column b
a. lipid
b. protein
c. carbohydrate
d. nucleic acid

Explanation:

1. Carbohydrates have the general formula \(C_nH_{2n}O_n\), which shows a \(C:H:O\) ratio of \(1:2:1\).
2. Proteins can contain \(C\), \(H\), \(O\), \(N\), \(P\), and \(S\) (e.g., some amino - acids like cysteine have \(S\)).
3. Vegetable oil is a type of lipid (a triglyceride).
4. Amino acids are the monomers of proteins.
5. Enzymes are proteins that act as biological catalysts.
6. Lipids have \(C\), \(H\), \(O\) but with less \(O\) compared to carbohydrates. For example, the formula of a fatty acid (a component of lipids) is \(C_{n}H_{2n + 1}COOH\) which has relatively less \(O\) than a simple sugar (\(C_6H_{12}O_6\)).
7. DNA (deoxyribonucleic acid) is a nucleic acid.
8. Lipids are used for long - term energy storage in the body.
9. Monosaccharides (e.g., glucose) are the monomers of carbohydrates.
10. Amino acids (the building blocks of proteins) contain an amino group (\(-NH_2\)).

Answer:

1. c. carbohydrate
2. b. protein
3. a. lipid
4. b. protein
5. b. protein
6. a. lipid
7. d. nucleic acid
8. a. lipid
9. c. carbohydrate
10. b. protein