Question

match the type of organic molecule with its description and function. 1. composed mostly of carbon, hydrogen, and oxygen in approximately 1:2:1 proportions. (click to select) 2. mostly composed of carbon and hydrogen, with few oxygen atoms. (click to select)▼ 3. always contain carbon, hydrogen, oxygen, and nitrogen. (click to select)▼ 4. poorly soluble in water. (click to select)▼ 5. composed of repeats of n-c-c that are linked by peptide bonds and carry one of 20 side groups. ( 6. as an example, enzymes control chemical reactions. (click to select)▼

Explanation:

To solve this, we analyze each description and match it to the correct organic molecule (carbohydrates, lipids, proteins, nucleic acids - but here focusing on carbs, lipids, proteins):

1.

**: Carbohydrates (like sugars, starches) have a general formula of $C_n(H_2O)_n$, so C:H:O is ~1:2:1.
Match: Carbohydrates

2.

**: Lipids (fats, oils) are mostly C and H, with very few O atoms (unlike carbs/proteins).
Match: Lipids

3.

**: Proteins are made of amino acids, which contain C, H, O, and N (and sometimes S).
Match: Proteins

4.

Answer:

**: Enzymes are biological catalysts, and most enzymes are proteins.
Match: Proteins

Final Matches:

1. Carbohydrates
2. Lipids
3. Proteins
4. Lipids
5. Proteins
6. Proteins