Summary Transport in animals A level Biology OCR revision notes
13 views 0 purchase
Course
Transport in animals
Institution
OCR
Book
A Level Biology A for OCR Student Book
In depth revision notes covering the whole of transport in animals. The topic is broken down into the individual specification points, shown by the numbers used throughout.
OCR A Biology H420 - 2.1.5 - Biological Membranes (Chapter 5) Short Summary Notes
Respiration notes or OCR biology A level
Biodiversity revision notes for Biology A level OCR
All for this textbook (126)
Written for
A/AS Level
OCR
Biology
Transport in animals
All documents for this subject (1)
Seller
Follow
lizziebowles
Content preview
, 3 7 2 TRANSPORT IN
.
.
ANIMALS
Need for transpor
se
histt
·
metabolic rate-large multicellular
organisms ↑
have metabolic rate
.
↳ diffusion alone enough
isn't
·
SA : Vol-in larger organisms diffusion ,
would
occur too slowly But , single-alled organisms
.
have a large SA : Vol because the diffusion
path is so short
circulatory
used to
transport normous 1)
systems are
systems
circulatory
- enzymes from a gland to other parts of the
body
, it is also needed to dispose of waste
·
products etc ...
when the
heart relaxes the
pumps
,
heart naemolymph blood
↑
naemolymph through issucked backwi by
short vessels these pores
↳ into
L
& Yish
naemocoel -locust
Blood is fully
-
enclosed <
withi blood
vessels
-
in the
In the capiaries S
naemocal
, substances
naemolymph diffuse his
&
-
directly out of the
bathes blood vito
organs aus
tissues So
diffusion of
substances can occur
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 lizziebowles. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.36. You're not tied to anything after your purchase.