Biologymedium · Past Paper
Which plant hormone is primarily responsible for cell elongation and phototropism?
AEthylene
BAbscisic acid
CAuxin
DGibberellin
✓ Correct Answer: C — Auxin
Auxin promotes cell growth and causes plants to bend toward light by accumulating on the shaded side.
Share this question
More from Biology
- Where does the majority of nutrient absorption occur in the digestive system?
- Which of the following describes a frame-shift mutation?
- The Endosymbiotic Theory suggests that mitochondria and chloroplasts originated from:
- Which type of protein is embedded across the entire lipid bilayer?
- What is the main function of the nucleolus?