Explanation of phototropism

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now

Explanation of phototropism

Posted by Sparsh Tyagi 5 years, 10 months ago

CBSE > Class 10 > Science

3 answers

Yogita Ingle 5 years, 10 months ago

The directional movement of a plant in response to light is called phototropism. The shoot responds by bending towards light and roots respond by bending away from light.
This happens as follows:
(i) When sunlight falls straight on the plant, the auxin hormone synthesised at the tip of the stem spreads uniformly down the stem and due to equal concentration of auxin, stem grows straight.
(ii) When sunlight fells on only one side of the plant, the auxin diffuses towards the shady side of shoot. The concentration of auxin stimulates the cells to grow longer. Therefore, the stem appears to bend towards the source of light.

0Thank You

Devika Yadav 5 years, 10 months ago

0Thank You

Devika Yadav 5 years, 10 months ago

Phototropism is the movement of plant part towards light . Eg movement of leaves towards sunlight

1Thank You

ANSWER

Test

Related Questions

How does our body respond when adrenaline is Secreated into the blood

Posted by Aadarsh Tripathi 1 year, 5 months ago

CBSE > Class 10 > Science

2 answers

What effect does the concentration of H+(aq) ions have on the nature of the solution

Posted by Tushar Sharma 1 year, 5 months ago

CBSE > Class 10 > Science

2 answers

Explain three stages of resource planning

Posted by Harshita Tondey 1 year, 5 months ago

CBSE > Class 10 > Science

3 answers

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Pandey Ji 6 months ago

CBSE > Class 10 > Science