Summary
Summary Alevel OCR Biology A notes on Photosynthesis
Alevel OCR Biology A notes on Photosynthesis from an A* Biology student
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
Seller
FollowContent preview
Photosynthesis permeable outer layer lice small-
molecule (
I
-
chloroplasts double
-
membrane envelope inver membrace:
transport protein:certain morecules/inn can enter/leave
↳
Stroma thylanoide (flatened shid filled sacs) 70s ribosomes DNAloop starch grains
= +
+ +
-
thylaucid membrace pigments, enzymes
=
election
+
carriers
-
Hylancial stack:
grana, connected by lamellal
grand membrane:large surface areat many pigment
4
molecules: light absorption plotosystems
=
selectivetransparproteinconnectareen
Merma
!)}@#5.
~>
3 envelope
asananaputs
grain
e
↓
/ light absorptich
stroma
photosystems-t ylaloid membrace =
light independent
dI**I
d grana= light
absorb
light energy
dependent
7
↓
surrounds grana
+
p roduct
membranes: transport rapid.
get like did has enzymes catalyse light independent stage
=
distance by pigmen
rf distance by scent
-
=
accessary pigments surrounding primary pigment:similar different
+
wavelengths
(yellow-green)
chlorophyle=a
chomarcgraphy
-
b
+
(blue-green):reflect green light
-carotenoids =
B carotere (orange) Xanthophyle
+
(yellow)
3 separated by
-light dependent thylaucids
=
-> plotolysis
-light energy break down water: hydrogen ion, electrons 02
+
Hylahcid
in lumen
=protongradient:4 cone & H wren
in
(ETC)
-electrons in
electron transport chain withmembrace
=
HT
OILRIG
NADPHproduced when s troma
in + electrons combine w/NADP
=plotophosphorylation ATP
=
-
-Plotophosphorylation excited
=
electrons move along ETC, electron carries reduced (gaindectrons +
oxidised (lose
->proton purp
electrons, gradually release actively transport
energy: protone across thylaloid membrace to
cycic" on cyclic wien=
proton graders:
p rotone return stroma
to via facilitated diffusion via transmembrane
↓ ↓
arePhoto batter- ATP synthase (chenicosmosis):ABD+Pi=AT
(PSI)
-
cyclic photophosphorylation:
election primary pigment
in excited to 4
energy wal (photoactivation), captured by
↓ electron acceptor
doesnt produce NADPH
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 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 lottiemcgowan1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £3.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53068 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