Question

take a small potted plant. Cover base portion of the plant tightly and hung the part upside down. Observe the plant for a week. Based on your observation how can you support phototropism​

Answer 1

Answer:

take away the cover base. Phototrosim takes place in the presence of sunlight. then take the plant to a sunny place. This can support phototrosim.

Answer 2

❖ Aim :

To prove that phototropism is a character that is carried by stem.

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❖ Apparatus :

• Potted plant
• a strong small rope

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❖ Procedure :

➤ Take a small potted plant.

➤ Cover the base portion of the plant tightly so that the plant along with soil do not fell down.

➤ Now take a rope and hang the potted plant upside down to a support firmly.

➤ Observe the plant after a week.

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❖ Observation :

We observe that the end of the stem which is upside down takes 'U' turn and growing towards light.

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❖ Conclusion :

Phototropism is a response towards light of plants that the stem grows towards light that is negatively to gravitation. Auxins are responsible for phototropism.

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