NEET2002ChemistryBiomoleculesActual
Which of the following statement(s) is incorrect?
Options
- A-carbon of -amino acid is asymmetric
- BAll proteins are found in the L-form
- CHuman body can synthesize all proteins they need
- DAt pH =7 both amino and carboxylic groups exist in the ionized form
Correct answer
B. All proteins are found in the L-form
Step-by-step solution
Amino acids are organic compounds that contain amine ( (- NH ₂ ) ) and carboxyl ((- COOH ) ) functional groups, along with a side chain (R group) specific to each amino acid. a-carbon of cc-amino acid is asymmetric. Hence this statement is true. Proteins exist in both D and L -form. Human body can synthesize all proteins they need. At ( pH =7 ), both amino and carboxylic groups exist in ionised form.