control and coordination — Science STD 10 — Question
Gujarat BoardEnglish MediumSTD 10Sciencecontrol and coordination3 Marks
Question
Explain the movement in pea plant due to growth.
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Answer
The pea plant climb up other plants or fences with the help of tendrils.
These tendrils are sensitive to touch.
When tendrils come in contact with any support, the part of the tendril in contact with the object does not grow as rapidly as the part of the tendril away from the object.
This causes the tendril to circle around the object and thus cling to it.
Growth of pea plant is directional and respond slowly to stimuli.
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