Chp 4.6 Fermentation Study Guide Set

Why does fermentation happen?

Fermentation happens so cells can regenerate NAD+ needed to keep glycolysis going!!!

Why is fermentation considered an anaerobic process?

because it occurs without oxygen

Name one commercial use of alcoholic fermentation.

bread

What occurs in lactic acid fermentation?

pyruvate and NADH from glycolysis enter the fermentation process. Two NADH molecules provide energy to break down pyruvate into lactic acid. This regenerates the supply of NAD+ needed for the continuation of glycolysis.

What are 3 ways that lactic acid fermentation and alcoholic fermentation are similar?

1. Pyruvate and glycolysis enter fermentation. 2. NADH is changed into NAD+. 3. NAD+ is recycled to glycolysis

What is the importance of fermentation?

Fermentation allows glycolysis to continue making ATP when oxygen is unavailable for cellular respiration.

How is fermentation involved in the production of ATP?

Fermentation allows glycolysis to take place, which yields 2 net ATP

What is the function of fermentation?

It removes electrons from NADH molecules and recycles NAD+ molecules for glycolysis

What is needed to start glycolysis and split glucose?

uses 2 ATP to split glucose

What organisms do Alcoholic Fermentation?

yeast and bacteria; In yeast the CO2 bubbles make the bread rise, the alcohol evaporates when baked. Bacteria - make wine and champagne the same way

What are the products of glycolysis?

2 pyruvate, 2 ATP, 2 NADH

Name one commercial use of lactic acid fermentation.

Cheese and yogurt

When does fermentation take place in your muscle cells?

During hard exercise, when not enough oxygen is available.

What is the total number of ATP produced in Anaerobic Respiration?

Glycolysis = 2 ATP Fermentation = 0 ATP Grand Total = 2 ATP

What organisms do Lactic Acid Fermentation?

Humans and all animals - •Happens in muscle cells during exercise when body can't get oxygen to tissues fast enough. •Lactic Acid builds up in muscles and causes soreness.

What is 1 way that lactic acid fermentation and alcoholic fermentation are different?

In lactic acid fermentation, NADH is used to convert pyruvate into lactic acid, and in alcoholic fermentation the pyruvate is converted into alcohol and carbon dioxide.

What is fermentation?

anaerobic process by which ATP is produced by glycolysis.

Where in the cell does lactic acid and alcoholic fermentation take place?

cytoplasm

Where does glycolysis occur?

cytoplasm of the cell

What are the two stages of Anaerobic Respiration?

glycolysis and fermentation

What are the two types of fermentation?

lactic acid fermentation and alcoholic fermentation

What is lactic acid?

product of fermentation in many types of cells, including human muscle cells.

What occurs in alcohol fermentation?

pyruvate and NADH from glycolysis enter alcoholic fermentation. Two NADH molecules provide energy to break down pyruvate into an alcohol and carbon dioxide. This regenerates the supply of NAD+ needed for the continuation of glycolysis.