6.3 Plant Responses

Question	Answer
What is phototropism?	Plants are sensitive to light
What is hydrotropism?	Plants are sensitive to moisture
What is gravitropism?	Plants are sensitive to gravity
Which way do plant shoots grow?	Towards light and against the force of gravity
Which way do plant roots grow?	Towards moisture and in the direction of the force of gravity
What do plants produce to coordinate and control growth?	Hormones
What does the hormone auxin control?	Phototropism and gravitropism (geotropism??)
What are the responses of plant roots and shoots to light, gravity and moisture the result of?	Unequal distribution of auxin, causing unequal growth rates
How are plant growth hormones used in agriculture and horticulture?	Weed killers Rooting Hormone

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	Created by Anisha Rai almost 8 years ago