Which one of the following biomolecules is correctly characterised?giv...
Palmitic acid has 16carbon atoms including carboxyl group, alanine is a amino acid containing amino group n an ( alkyl group), means,methyl group, adenylic acid is formed by adenine n deoxyribose sugar. that's y lecithin is a Phosphorylated glyceride found in cell membranes. The option 2 is correctly matched over there.
Which one of the following biomolecules is correctly characterised?giv...
Correctly Characterized Biomolecules:
1. Palmitic acid - an unsaturated fatty acid with 18 carbon atoms:
This statement is incorrect. Palmitic acid is a saturated fatty acid with 16 carbon atoms. It does not contain any double bonds between carbon atoms.
2. Lecithin - a phosphorylated glyceride found in cell membrane:
This statement is correct. Lecithin is a phospholipid composed of glycerol, fatty acids, and a phosphate group. It is a major component of cell membranes and plays a crucial role in maintaining membrane integrity and fluidity.
3. Alanine - an amino acid containing an amino group and an acidic group anywhere in the molecule:
This statement is incorrect. Alanine is a non-polar, neutral amino acid. It contains an amino group (-NH2) and a carboxyl group (-COOH) on the same carbon atom, making it an alpha amino acid. However, it does not possess any additional acidic group in its structure.
4. Adenylic acid - adenosine with a glucose phosphate molecule:
This statement is incorrect. Adenylic acid, also known as adenylate or adenosine monophosphate (AMP), is composed of adenosine (adenine + ribose sugar) and a phosphate group. It does not have a glucose phosphate molecule attached to it.
Explanation:
- Palmitic acid is a long-chain fatty acid commonly found in animals and plants. It is saturated, meaning it does not contain any double bonds between carbon atoms. It has 16 carbon atoms in its structure.
- Lecithin, also known as phosphatidylcholine, is a phospholipid that contains a phosphate group attached to a glycerol backbone. It is an essential component of cell membranes, helping to maintain their structure and function.
- Alanine is one of the 20 standard amino acids found in proteins. It is a non-polar, neutral amino acid with a methyl group as its side chain. It contains an amino group and a carboxyl group on the same carbon atom, making it an alpha amino acid.
- Adenylic acid, or AMP, is a nucleotide composed of adenosine (adenine + ribose sugar) and a phosphate group. It plays a crucial role in cellular energy metabolism and is a building block for nucleic acids like RNA.
In conclusion, the correctly characterized biomolecule is "Lecithin - a phosphorylated glyceride found in cell membrane."
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