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Aminoacids, as the name suggests, have b...

Aminoacids, as the name suggests, have both an amino group and a carboxyl group in their structure. In addition, all naturally occurring aminoacids (those which are found in proteins) are called L-aminoacids. From this, can you guess from which compound can the simplest aminoacid be made

A

(a) Formic acid

B

(b) Methane

C

(c) Phenol

D

(d) Glycine

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the simplest amino acid and the compound from which it can be derived, we can follow these steps: ### Step 1: Understand the Structure of Amino Acids Amino acids consist of: - An amino group (-NH2) - A carboxyl group (-COOH) - A hydrogen atom - A variable R group (side chain) ### Step 2: Identify the Simplest Amino Acid The simplest amino acid is glycine. Its structure can be represented as: - Amino group: -NH2 - Carboxyl group: -COOH - Hydrogen atom: -H - R group: In glycine, the R group is a hydrogen atom (H). Thus, the structure of glycine can be summarized as: ``` H | H2N-C-COOH | H ``` ### Step 3: Determine Possible Precursors Now, we need to consider which compound can be transformed into glycine. The options provided are: - A) Formic acid - B) Methane - C) Phenol - D) Glycine itself ### Step 4: Analyze Each Option - **Formic Acid**: Its structure is HCOOH. It has a carboxyl group but lacks an amino group, so it cannot be converted into glycine. - **Methane**: Its structure is CH4. We can replace one hydrogen atom with an amino group (-NH2) and another hydrogen with a carboxyl group (-COOH) to form glycine (NH2-CH2-COOH). - **Phenol**: Its structure is C6H5OH. It has a hydroxyl group and a benzene ring, which does not provide the necessary groups to form an amino acid. - **Glycine**: This is the amino acid itself and cannot be used to derive itself. ### Step 5: Conclusion Based on the analysis, the compound that can be transformed into the simplest amino acid (glycine) is **B) Methane**. ### Final Answer The simplest amino acid can be made from **B) Methane**. ---
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