BI110 Lecture Notes - Lecture 18: Acetaldehyde, Catalase, Ethanol Fermentation

75 views3 pages
21 Dec 2015
School
Department
Course
Professor

Document Summary

Fermentation: non-oxygenic molecules (i. e. sulfate, nitrate) as electron, 25% less atp than aerobic respiration receptors, endogenous molecules (i. e. pyruvate, acetaldehyde) as, 93% less atp than aerobic respiration electron receptors. Although they lack mitochondria, prokaryotes have respiratory electron transport chains, located on internal membranes. Many prokaryotes do aerobic respiration; some prokaryotes use a molecule other than o2 as terminal electron acceptor: possess anaerobic respiration, sulphate, nitrate, and ferric ions are common electron receptors. Strict anaerobes: cannot grow in presence of oxygen. Facultative aerobes: can grow in presence of oxygen and can grow using fermentative pathways in the absence of oxygen: i. e. Although many organisms cannot exist without oxygen because it is required for electron transport, oxygen itself is inherently dangerous to all forms of life (even aerobic organisms) Reduction of oxygen to water-forms reaction oxygen species. Reactive oxygen species (ros: include superoxide and hydrogen peroxide, strong oxidizing agents.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Questions