Home
Class 12
CHEMISTRY
In L-Phenyl alanine the amino group lies...

In L-Phenyl alanine the amino group lies at

A

right side to chiral centre

B

left side to chiral centre

C

para position to -COOH in benzene ring

D

ortho position to -COOH in benzene ring

Text Solution

AI Generated Solution

The correct Answer is:
To determine the position of the amino group in L-Phenylalanine, we can follow these steps: ### Step 1: Understand the Structure of L-Phenylalanine L-Phenylalanine is an amino acid that contains a central carbon atom (the chiral center) bonded to four different groups: an amino group (-NH2), a carboxyl group (-COOH), a hydrogen atom (H), and a phenyl group (the benzene ring). ### Step 2: Draw the Structure 1. Start by drawing the central carbon (the chiral center). 2. Attach the amino group (-NH2) to one side of the central carbon. 3. Attach the carboxyl group (-COOH) to the opposite side of the central carbon. 4. Attach a hydrogen atom (H) to one side of the central carbon. 5. Finally, attach the phenyl group (C6H5) to the last side of the central carbon. ### Step 3: Identify the Chiral Center The chiral center is the central carbon atom that is bonded to four different groups. In L-Phenylalanine, this carbon is the one we are focusing on. ### Step 4: Determine the Position of the Amino Group In the standard representation of amino acids, the amino group is typically placed at the left side of the chiral center when drawn in the Fischer projection. ### Conclusion In L-Phenylalanine, the amino group lies at the left side of the chiral center. ### Final Answer The amino group in L-Phenylalanine lies at the left side of the chiral center (Option B). ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Alanine is

A tetrapeptide has -COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on complete hydrolysis. For this tetrapeptide, the number of possible sequences (primary structures) with -NH_(2) group attached to a chiral centre is

Amino acids can be classified as alpha-,beta-,gamma-,delta -and so depending upon the relative position of amino group with respect to carboxyl group. Which type of amino acids form polypeptide chain in proteins?

In which of the following amino acid . R . group is a " Hydroxy methyl " moeity ?

How many tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine?

Carboxylic acids containing an amino group (-NH_(2)) as a substituent are called amino acids. When this amino group substitution is at alpha position with respect to carboxylic group, the aminoacid is called alpha -amino acid. The aminoacids with two carboxylic acids are called acidic amino acids whereas aminoacids with two amino group are called basic amino acids Amino acids show amphoteric character. Ali chiral natural amino acids exist in L-form. : Each of the following represent natural alanine (an amino acid) except

Carboxylic acids containing an amino group (-NH_(2)) as a substituent are called amino acids. When this amino group substitution is at alpha position with respect to carboxylic group, the aminoacid is called alpha -amino acid. The aminoacids with two carboxylic acids are called acidic amino acids whereas aminoacids with two amino group are called basic amino acids Amino acids show amphoteric character. Ali chiral natural amino acids exist in L-form. : Which of the following is not an alpha -amino acid?

Carboxylic acids containing an amino group (-NH_(2)) as a substituent are called amino acids. When this amino group substitution is at alpha position with respect to carboxylic group, the aminoacid is called alpha -amino acid. The aminoacids with two carboxylic acids are called acidic amino acids whereas aminoacids with two amino group are called basic amino acids Amino acids show amphoteric character. Ali chiral natural amino acids exist in L-form. : What would be the net charge on the given amino acid at pH=14?

Amino acids are the organic compounds containing an amino group and an acidic group on _________carbon.

Amino acids have both an amino group and a carboxy group in their structure. Which amongst the following is an amino acid ?