Practice question
Question
Phototropin-mediated stomatal opening requires:
Explanation
The right choice is C: Zeaxanthin. In Phototropin+All, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Phytochrome; B) Cryptochrome; D) Anthocyanin. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.