Question

_____ is the precursor of IAA, while _____ is the precaution of ethylene.

• A. Glycine, Tryptophan
• B. Lysine, methionine
• C. Methionine, Lysine
• D. Tryptophan, Methionine

Answer 1

Answer:

D. Tryptophan, Methionine

• Tryptophan is the precursor for the plant hormone IAA (Indole-3-acetic acid), which is a type of auxin responsible for cell elongation and growth.

• Methionine is the precursor for the plant hormone ethylene, which is responsible for fruit ripening and senescence.