Anaerobic Respiration and Fermentation Concepts

The video explains anaerobic respiration, focusing on glycolysis and lactate formation. It discusses the impact of lactate on the body, including its effect on blood pH and the nervous system. The video also covers anaerobic respiration in yeast, highlighting fermentation and its applications in brewing and baking. A comparison of ATP yield in aerobic and anaerobic respiration is provided, along with a demonstration of using a respirometer in experiments.

What is the primary molecule that pyruvate is converted into during anaerobic respiration?

• Lactate

• Carbon Dioxide

• Ethanol

• Acetyl-CoA

How many ATP molecules are produced during glycolysis in anaerobic respiration?

• 6

• 1

• 4

• 2

What happens to the pH of the blood when lactate accumulates?

• It fluctuates

• It remains constant

• It decreases

• It increases

What is the term used to describe the heavy breathing after exercise to repay the oxygen debt?

• Oxygen debt

• Lactate threshold

• Respiratory compensation

• Anaerobic threshold

Which organism is commonly used in fermentation to produce ethanol and carbon dioxide?

• Mold

• Yeast

• Bacteria

• Algae

What is the main byproduct of fermentation in yeast that is used in baking?

• Acetic acid

• Lactic acid

• Ethanol

• Carbon dioxide

What was the previously believed ATP yield from aerobic respiration before recent research?

• 36 ATP

• 30 ATP

• 24 ATP

• 40 ATP

What is the corrected ATP yield from aerobic respiration according to recent research?

• 38 ATP

• 28 ATP

• 31 ATP

• 34 ATP

What is the purpose of using soda lime in a respirometer experiment?

• To release oxygen

• To release carbon dioxide

• To absorb carbon dioxide

• To absorb oxygen

Why is it important to consider ethical implications when using animals in respirometer experiments?

• To reduce costs

• To ensure accurate results

• To maintain experimental control

• To adhere to ethical standards