Chemical coordination in plants — Biology STD 10 — Question
ICSE BoardEnglish MediumSTD 10BiologyChemical coordination in plants1 Mark
MCQ
A phytohormone existing in gaseous state is:
A
Auxin
✓
Ethylene
C
Abscisic acid
D
Cytokinin
✓
Answer
Correct option: B.
Ethylene
(b) Ethylene Explanation : Ethylene is a phytohormone existing in a gaseous state. It is involved in various plant processes including fruit ripening and response to stress.
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