Lesson 6 Fermentation PDF
Document Details
Uploaded by CoolThermodynamics9507
Yanbu Elite International School
Tags
Summary
This document explains the process of fermentation, a biological process that occurs in the absence of oxygen. It describes lactic acid fermentation and alcoholic fermentation. It also covers the applications of fermentation in food production and discusses the energy involved in exercise.
Full Transcript
. Biology Lesson 6 Fermentation Lesson 6 Fermentation YANBU_YEIS. Fermentation allows glycolysis to continue. Fermentation allows glycolysis to continue making ATP when oxygen is unavailable....
. Biology Lesson 6 Fermentation Lesson 6 Fermentation YANBU_YEIS. Fermentation allows glycolysis to continue. Fermentation allows glycolysis to continue making ATP when oxygen is unavailable. Fermentation is an anaerobic process. occurs when oxygen is not available for cellular respiration does not produce ATP Lesson 6 Fermentation YANBU_YEIS. Fermentation allows glycolysis to continue making ATP when oxygen is unavailable. NAD+ is recycled to glycolysis Lesson 6 Fermentation YANBU_YEIS. There are 2 types of fermentation Named for the products produced Lactic acid fermentation Alcoholic fermentation Lactic acid fermentation occurs in muscle cells. – glycolysis splits glucose into two pyruvate molecules – pyruvate and NADH enter fermentation – energy from NADH converts pyruvate into lactic acid – NADH is changed back into NAD+ Lesson 6 Fermentation YANBU_YEIS. Energy and Exercise Quick Energy 1. Cells contain only enough ATP for a few seconds of intense activity 2. Then cells rely on lactic acid fermentation (can supply for about 90 seconds) 3. Lactic acid build-up causes burning in muscles. Only way to get rid of lactic acid is chemical pathway that requires oxygen (why you breathe heavy after heavy excercise.) Build up of lactic acid in muscles cause burning sensation Lesson 6 Fermentation YANBU_YEIS. Fermentation its products are important in several ways. Alcoholic fermentation is similar to lactic acid fermentation. glycolysis splits glucose and the products enter fermentation – energy from NADH is used to split pyruvate into an alcohol and carbon dioxide – NADH is changed back into NAD+ – NAD+ is recycled to glycolysis Lesson 6 Fermentation YANBU_YEIS. Yeast do alcoholic fermentation Fermentation is used in food production. Lesson 6 Fermentation YANBU_YEIS. Lesson 6 Fermentation YANBU_YEIS
