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
15 Control and coordination (diagrams, key points, summary) £5.97   Add to cart
Quickly navigate to
Preview
  2.  
  3. Gcse
  4.  
  5. Biology (9700)

Exam (elaborations)

15 Control and coordination (diagrams, key points, summary)

1 review
 44 views  1 purchase
  • Module
  • Biology (9700)
  • Institution
  • Gcse
  • Book
  • Cambridge International AS and A Level Biology Coursebook with CD-ROM

Scored an A* | A Level Biology notes with contents arranged according to the learner guide. Contains diagrams, easily understood by visual learners. Consists of key points, not too further elaborated, short, concise and straight to the point to equip you for the exam.

Preview 3 out of 19  pages

Document information

  • August 27, 2020
  • 19
  • 2019/2020
  • Exam (elaborations)
  • Only questions

Subjects

  • a level
  • biology
  • control and coordination
  • gcse
  • cie
  • nerves
  • nervous system

Connected book

book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:

More summaries for

  • PHOTOSYNTHESIS
  • Biology AS Best summary notes
  • Cell structure_ A level
All for this textbook (115)

Written for

  • Gcse
  • Biology (9700)
All documents for this subject (892)

1  review

review-writer-avatar

By: SK786 • 3 year ago

Seller

avatar-seller
jxlim28

Reviews received

Content preview

Control 7 Coordination
CIE A LEVEL BIOLOGY




Jia Xuan
by

,MAMMALS
NERVOUS VS ENDOCRINE SYSTEM




÷÷÷÷¥÷÷: i÷÷÷÷÷i÷
T




.fi/::::/
NERVOUS SYSTEM ENDOCRINE SYSTEM
-




both involve signalling
cell
signalling cell


detail both involve
signal molecule binding to receptor

chemicals both involve chemicals




response destination muscle l gland target organs 1 tissue 1 cells


transmission speed fast slow


effects specific / localised can be widespread

fast slow
response speed

\ duration I shor t -
lived
) long -
lasting I

\ ) ) )
receptor locator on cell sur face membrane on CSM / within cell



#




ACTION POTENTIAL


membrane

potential 1mV
^




ta
C
+ 30 -



T




.




-

70 ↳ E
F-



- time 1ms




A. F :
resting potential

B : de polarisation

D : re polarisation


E :
hyperpolarisation

, RESTING POTENTIAL




÷:÷÷÷÷: iii.
'




-
.




sodium 3 Nat and 2kt
I . -

potassium pump pumps out of neurone into neurone
by active


transport , against concentration gradient
membrane of to Kt
2 . neurone more
permeable
3 .
more Kt diffuse out than Nat diffuse in by facilitated diffusion

4- inside more negative than outside

5 . membrane is polarised t
I I I I
.




i. : : : :

is 60 to 70 mV
G resting potential
- -
.




D ion movement only at Nodes of Ranier




DE POLARISATION


't
Na



'




.




I Nat channels open
.




2 . Nat diffuse into the cell

3 .

potential across the membrane changes
than
4 . inside more
positive outside

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 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 jxlim28. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £5.97. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

84866 documents were sold in the last 30 days

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

Start selling
£5.97  1x  sold
  • (1)
  Add to cart