100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
ATP tutorial Class notes Physiology Of Microorganisms Brock Biology of Microorganisms plus Pearson Mastering Microbiology with Pearson eText, Global Edition, ISBN: 9781292235226 $3.74
Add to cart

Class notes

ATP tutorial Class notes Physiology Of Microorganisms Brock Biology of Microorganisms plus Pearson Mastering Microbiology with Pearson eText, Global Edition, ISBN: 9781292235226

 3 views  0 purchase
  • Course
  • Institution
  • Book

This document covers one of the lectures given during a tutorial about ATP.

Preview 2 out of 6  pages

  • June 16, 2021
  • 6
  • 2020/2021
  • Class notes
  • Hanna koch
  • All classes
avatar-seller
ATP TUTORIAL




THE CELL’S ENERGY CYCLE

ATP GENERATION VS ATP CONSUMPTION

- Aerobic respiration - Chemical work
- Anaerobic respiration - Transport work
- Fermentation - Mechanical work
- Chemolithotrophy
- Phototrophy
- Transport work

ATP ENERGY RICH COMPOUND

- ATP as E currency
- High phosphoryl transfer potential: tendency of an organic molecule to transfer a P group to
an acceptor molecule
- Thermodynamically unfavourable reaction can be converted into a favourable reaction by
coupling it to hydrolysis of the sufficient number of ATPs

- Anhydride bonds act like a coil
- Storage of E
- The bond itself is not special, breakage releases E bc of the chemical/structural properties of
the bond
- ADP is more stable than ATP

Other energy rich compounds: PEP, 1,3-bisphosphate, acetyl-P, acetyl-CoA

, WAYS OF ATP GENERATION

- Substrate level phosphorylation
- Oxidative phosphorylation
- Photophosphorylation

SUBSTARTE LEVEL PHOSPHORYLATION

DEFINITION: SYNTHESIS OF ATP FROM ADP BY PHOSPHORYLATION COUPLED WITH THE EXERGONIC
BREAKDOWN OF A HIGH ENERGY ORGANIC MOLECULE WITH A HIGHER PHOSPHORYL TRANSFER
TENDENCY THAN ATP

1. E from the oxidation of GAP with NAD+ as electron acceptor is used to add a P group to GAP
2. Generation of the E rich compound with a higher P transfer potential tendency, 1,3-
bisphosphoglycerate
3. Redox reaction is coupled to E incorporation, free E is trapped in E rich molecule
4. Substrate level phosphorylation: 1,3-bisphosphoglycerate has a higher P transfer potential tendency
than ATP, the P group is transferred onto ADP to form ATP (reversible reaction)

OXIDATIVE PHOSPHORYLATION

DEFINITION: ELECTRON TRANSPORT INITATED BY THE OXIDATION OF CHEMICAL COMPOUND

- Charge separation leads to the built-up of the membrane potential (pmf)
- Proton motive force is used for ATP synthesis by ATP-synthase

PHOTOPHOSPHORYLATION

DEFINITION: THE SYNTHESIS OF ATP FROM ADP USING E MADE AVAILABLE DURING ELECTRON
TRANSPORT INITIATED BY THE ABSORPTION OF LIGHT E




AUTOTROPHIC PHOTOPHOSPHORYLATION

- The energy for ATP production comes from the light
- Carbon source is CO2
- Two types:
o Oxygenic (donor water to generate NADP for CO2 fixation)
o Anoxygenic (donor something else than water, no O2 production)

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 adrienngroza. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $3.74. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

52510 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
$3.74
  • (0)
Add to cart
Added