100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Plant Responses and Hormones $10.35   Add to cart
Quickly navigate to
Preview
  2.  
  3. OCR
  4.  
  5. Biology A
  6.  
  7. Unit 5

Summary

Summary Plant Responses and Hormones
 26 views  0 purchase
  • Course
  • Unit 5
  • Institution
  • OCR

Revision notes on plant responses and hormones. A level biology OCR A revision notes. Notes on module 5: Communication, homeostasis and energy. Summary/ information you need to memorize for a level biology OCR A exams. A* student's revision notes.

Preview 1 out of 1  pages

Document information

  • December 4, 2023
  • 1
  • 2022/2023
  • Summary

Subjects

  • plant response
  • plant hormones
  • hormones
  • plants
  • auxins
  • gibberellins
  • ethene
  • mechanical responses
  • chemical responses
  • biology
  • a level
  • ocr a
  • revision notes
  • module 5
  • homeostasis
  • communication
  • energy

Written for

  • A/AS Level
  • OCR
  • Biology A
  • Unit 5
All documents for this subject (112)

Seller

avatar-seller
flcarr23

Content preview

Plant Responses and Hormones:
 Plant responses are important to increase their chance of
survival by:
o Responding to changes in their environment. E.g. shoots
growing towards light, roots growing with gravity &
climbing plants having a sense of touch to grab on to
things.
o Responding to the presence of herbivores. E.g. producing
toxic chemicals (like alkaloids or tannins), producing
pheromones (which can attract predators of the
herbivore or signal other plants to start producing toxins),
& mechanical responses (like folding leaves).
o Responding to abiotic stress. E.g. carrots produce
antifreeze proteins at low temperatures.


 Tropisms – growth responses to directional stimuli.
 Positive tropism = growth towards a stimuli.
 Negative tropism = growth away from a stimuli.


STIMULUS NAME OF RESPONSE OF RESPONSE OF
RESPONSE SHOOTS ROOTS
Positive Most have no
LIGHT Phototropism. (grows response.
towards light). Some have
negative.
GRAVITY Geotropism. Negative Positive
(grows away (grows with
from gravity). force of
gravity).

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller flcarr23. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $10.35. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

73918 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$10.35
  • (0)
  Add to cart