Warning: Use of undefined constant referer - assumed 'referer' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 102

Warning: Use of undefined constant host - assumed 'host' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 105

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 106

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 109
Cellular Metabolism And Fermentation - School Essays

Cellular Metabolism And Fermentation

Glycolysis, the Universal Process | Anaerobic Pathways | Aerobic Respiration
Glycolysis, the Universal Process | Nine reactions, each catalyzed by a specific enzyme, makeup the process we call glycolysis. ALL organisms have glycolysis occurring in their cytoplasm.
At steps 1 and 3 ATP is converted into ADP, inputting energy into the reaction as well as attaching a phosphate to the glucose. At steps 6 and 9 ADP is converted into the higher energy ATP. At step 5 NAD+ is converted into NADH + H+.
The process works on glucose, a 6-C, until step 4 splits the 6-C into two 3-C compounds. Glyceraldehyde phosphate (GAP, also known as phosphoglyceraldehyde, PGAL) is the more readily used of the ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

information to do so. These biochemical pathways, with their myriad reactions catalyzed by reaction-specific enzymes all under genetic control, are extremely complex. We will only skim the surface at this time and in this course.
Alcohol fermentation is the formation of alcohol from sugar. Yeast, when under anaerobic conditions, convert glucose to pyruvic acid via the glycolysis pathways, then go one step farther, converting pyruvic acid into ethanol, a C-2 compound.

Fermentation of ethanol. Image from W.H. Freeman and Sinauer Associates, used by permission.
Many organisms will also ferment pyruvic acid into, other chemicals, such as lactic acid. Humans ferment lactic acid in muscles where oxygen becomes depleted, resulting in localized anaerobic conditions. This lactic acid causes the muscle stiffness couch-potatoes feel after beginning exercise programs. The stiffness goes away after a few days since the cessation of strenuous activity allows aerobic conditions to return ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.

Already a member? Login

CITE THIS PAGE:

APA
MLA
Chicago
Turabian

Cellular Metabolism And Fermentation. (2007, January 1). Retrieved January 22, 2025, from http://www.essayworld.com/essays/Cellular-Metabolism-And-Fermentation/57984

"Cellular Metabolism And Fermentation." Essayworld.com. Essayworld.com, 1 Jan. 2007. Web. 22 Jan. 2025. <http://www.essayworld.com/essays/Cellular-Metabolism-And-Fermentation/57984>

"Cellular Metabolism And Fermentation." Essayworld.com. January 1, 2007. Accessed January 22, 2025. http://www.essayworld.com/essays/Cellular-Metabolism-And-Fermentation/57984.

JOIN NOW

Join today and get instant access to this and 50,000+ other essays

PAPER DETAILS

Added: 1/1/2007 01:18:17 AM
Category: Science & Nature
Type: Free Paper
Words: 948
Pages: 4

Save |