Question

Which of the following amino acid is helpful in the synthesis of plastoquinone?

• A. Valine
• B. Isoleucine
• C. Leucine
• D. Tyrosine

Answer 1

Answer:

D. Tyrosine

• Plastoquinone is a branched chain unsaturated quinone, which helps in the electron transport chain of photosynthesis.

• P-hydroxyphenylpyruvate is synthesized from tyrosine which then converts finally to plastoquinone.