4.5-4.6 Anaerobic respiration

Fermentation occurs in the cell's 

• cytoplasm
• nucleus
• cell membrane
• cristae

What is a disadvantage of fermentation as a process? 

• It produces too much ATP
• It only produces 2 ATP
• It occurs in the absence of oxygen
• It is only for quick bursts of energy

What cells in the body may undergo lactic acid fermentation during exercise? 

• Muscle cells
• Fat cells
• Liver cells
• Skin cells

Which compounds are produced by the two main types of fermentation? 

• NAD+ or ATP
• alcohol or lactic acid
• glucose or carbon dioxide
• ADP or ATP

Cellular respiration is called an aerobic process because it requires

• light
• exercise
• oxygen
• glucose

 In glycolysis, each glucose molecule is broken down into 

• six molecules of carbon dioxide
• four molecules of ATP
• two molecules of pyruvic acid
• two molecules of ATP

Glycolysis provides a cell with a net gain of

• 2 ATP
• 4 ATP
• 18 ATP
• 36 ATP

Glycolysis requires

• ATP
• oxygen
• sunlight
• NADP+

During both alcoholic and lactic acid fermentation,

• NAD+ is regenerated, allowing glycolysis to continue.
• glucose is split into 3 pyruvic acid molecules.
• oxygen is required.
• carbon dioxide is produced.

Why is yeast used to bake bread? 

• The waste gas, CO_2, makes bread rise
• The alcohol produced makes bread dangerous
• The yeast consumes O₂, causing bread to rise