Question

A sample of food was subjected to enzymes that could degrade (break down) all types of macromolecules. The following results were obtained upon testing the end products of the sample.Based on this information, what can be said about the original food that was present before it was broken down by the enzymes?

Question 7 options:

The food contained all nucleic acids since that macromolecule was not tested and should have been.


The food contained only lipids since no disaccharides were found in the sample after digestion.


The food contained both carbohydrates and lipids since monosaccharides, fatty acids and glycerol were found.


The food contained no macromolecules since they were not present in the sample.

Answers

GPT-4o mini
Based on the information provided, after subjecting the food sample to enzymes that break down all types of macromolecules, it was found that monosaccharides, fatty acids, and glycerol were present as end products.

Here’s the analysis of the options:

1. **The food contained all nucleic acids since that macromolecule was not tested and should have been.**
- This statement is not necessarily correct. Just because nucleic acids were not mentioned as an end product does not imply their presence. There could be other explanations for their absence.

2. **The food contained only lipids since no disaccharides were found in the sample after digestion.**
- This statement is incorrect. The presence of monosaccharides (simple sugars) indicates that carbohydrates were also broken down, not just lipids.

3. **The food contained both carbohydrates and lipids since monosaccharides, fatty acids, and glycerol were found.**
- This statement is accurate. The presence of both monosaccharides (indicating carbohydrates) and fatty acids and glycerol (indicating lipids) confirms that the original food contained both types of macromolecules.

4. **The food contained no macromolecules since they were not present in the sample.**
- This option is also incorrect because the presence of breakdown products implies the original food must have contained macromolecules.

Given this analysis, the most accurate conclusion is:

**The food contained both carbohydrates and lipids since monosaccharides, fatty acids, and glycerol were found.**