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Indicate whether each of the descriptions in COLUMN B applies to A ONLY, B ONLY, BOTH A AND B, or NONE of the items in COLUMN A. Write A only, B only, both A and B, or none next to the question number (1.2.1-1.2.5) in the ANSWER BOOK, for example, 1.2.6 B only.

\begin{tabular}{|l|l|l|}
\hline
\multicolumn{2}{|c|}{COLUMN A} & COLUMN B \\
\hline
1.2.1 & A: Propanoic acid & Monomers of proteins \\
& B: Amino acids & \\
\hline
1.2.2 & A: Saturated fatty acid & Have one or more double bonds between carbon atoms \\
& B: Unsaturated fatty acid & \\
\hline
\end{tabular}

[tex]\((5 \times 2)\)[/tex]



Answer :

GinnyAnswer
Sure, let's go through this step-by-step, using the information provided in the question and our knowledge.

Column B: Descriptions that need to be matched to Column A.

### 1.2.1 Monomers of proteins:

- A: Propanoic acids - Propanoic acids are not the building blocks or monomers of proteins.
- B: Amino acids - Amino acids are indeed the building blocks or monomers of proteins.

For 1.2.1, the description in Column B ("Monomers of proteins") applies to B only. So, the answer to 1.2.1 is "B only".

### 1.2.2 Have one or more double bonds between carbon atoms:

- A: Saturated fatty acids - Saturated fatty acids do not contain double bonds between carbon atoms; they have only single bonds.
- B: Unsaturated fatty acids - Unsaturated fatty acids do contain one or more double bonds between carbon atoms.

For 1.2.2, the description in Column B ("Have one or more double bonds between carbon atoms") applies to B only. Therefore, the answer to 1.2.2 is "B only".

To summarize:
- 1.2.1: B only
- 1.2.2: B only

This detailed step-by-step analysis corresponds to the final results, ensuring correct answers based on understanding of biochemistry.

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