All of the followings are the effects of red light on plant, EXCEPT:
Correct answer: C. Elongation of internodes is promoted
- A. Causes epicotyl (plumule) hook to unbend
- B. Induces increase in leaf area
- C. Elongation of internodes is promoted
- D. Stimulate flowering in long day plants
- E. Phytochrome 660 changes to phytochrome 730
Explanation
Red light does not promote internode elongation in plants. Promoting elongation of internodes: This is known as the stem elongation response. It is thought to be caused by the production of auxin, which stimulates cell elongation in the internodes.
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