In the autumn, the leaves of some trees change colour. This happens because chlorophyll breaks down and the accessory pigments become visible. What hormone is responsible for this?
A) phototropin
B) abscisic acid
C) cytokinin
D) ethylene
Correct Answer:
Verified
Q2: Which of the following can function in
Q9: The detector of light during de-etiolation (greening)
Q16: Generally, each hormone has multiple functions in
Q17: Plant hormones _.
A) in plant cells naturally
Q17: Which of the following conclusions is supported
Q22: Which of the colours of visible light
Q23: Phytochrome plays a critical role in seed
Q24: Mammalian eyes sense light because the photoreceptor
Q25: _ prevents seeds from germinating until conditions
Q26: The biological clock controlling circadian rhythms must
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents