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 Anaerobic Respiration £7.99   Add to cart
Quickly navigate to
Preview
  2.  
  3. OCR
  4.  
  5. Biology A
  6.  
  7. Unit 5

Summary

Summary Anaerobic Respiration
 10 views  0 purchase
  • Institution
  • OCR

Revision notes on anaerobic respiration. OCR A: A level biology revision notes. Module 5: Communication, Homeostasis and Energy. A* biology student's notes. Summary of key content to be memorised. Flowchart/ diagrams.

Preview 2 out of 5  pages

Document information

  • December 4, 2023
  • 5
  • 2022/2023
  • Summary

Subjects

Written for

All documents for this subject (112)

Seller

avatar-seller
flcarr23

Content preview

Anaerobic Respiration Through Alcohol Fermentation (OCCURS IN
YEAST):
GLYCOLYSIS (OCCURS IN CYTOPLASM):
GLUCOSE
(6 Carbon Compound)
Two phosphate groups added
by the hydrolysis of 2 ATP
molecules to ADP.
HEXOSE BIPHOSPHATE (ATP  ADP +P)
(6 Carbon Compound with
2 phosphate groups).




TRIOSE PHOSPHATE TRIOSE PHOSPHATE

(3 Carbon Compound with (3 Carbon Compound with
1 phosphate group). 1 phosphate group).


2H is removed from each molecule by a
dehydrogenase enzyme. A NAD molecule
converted to a reduced NAD molecule. The
phosphate groups are removed & 2 ATP
molecules are generated from ADP & P. This
is Substrate Level Phosphorylation.

PYRUVATE ADP + P  ATP
PYRUVATE
(3 Carbon Compound). NAD + H 
(3 Carbon Compound).
Reduced NAD

Net Products:
2 Pyruvate Molecules
2 Reduced NAD
2 ATP

, PYRUVATE PYRUVATE
(3 Carbon Compound). (3 Carbon Compound).

Pyruvate decarboxylase removes a carbon
from pyruvate to form ethanal.
This then forms CO2.

ETHANAL ETHANAL

(2 Carbon Compound). (2 Carbon Compound).

Ethanol dehydrogenase catalyses ethanal
accepting 2H from reduced NAD (produced
during glycolysis).
The NAD returns to be used in glycolysis.

ETHANOL ETHANOL
(2 Carbon Compound). (2 Carbon Compound).



Yeast can survive without oxygen; however it will die when
ethanol concentration builds up to 15%.
This process has a net 2 ATP production (from the substrate
level phosphorylation that occurs in glycolysis).

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 flcarr23. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

77254 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
£7.99
  • (0)
  Add to cart