Cellular Respiration and Fermentation

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Questions and Answers

During cellular respiration, which of the following correctly identifies the role of glucose and oxygen?

  • Glucose and oxygen are both reactants. (correct)
  • Glucose and oxygen are both products.
  • Glucose is a product, and oxygen is a reactant.
  • Glucose is a reactant, and oxygen is a product.

Which stage of aerobic cellular respiration includes the Krebs cycle and the electron transport chain (ETC)?

  • Fermentation
  • Oxidative phosphorylation (correct)
  • Glycolysis
  • Hydrolysis

Where does glycolysis take place in a eukaryotic cell?

  • Endoplasmic Reticulum
  • Cytoplasm (correct)
  • Mitochondria
  • Nucleus

What is the net ATP production from glycolysis per molecule of glucose?

<p>2 ATP (D)</p> Signup and view all the answers

In alcoholic fermentation, what compound is pyruvate converted into?

<p>Ethanol (A)</p> Signup and view all the answers

Which of the following lists energy storage molecules other than ATP?

<p>Glycogen, Fat, Starch (D)</p> Signup and view all the answers

Which process is common in both aerobic and anaerobic respiration pathways?

<p>Glycolysis (D)</p> Signup and view all the answers

In lactic acid fermentation, what compound is the final product?

<p>Lactic acid (D)</p> Signup and view all the answers

Which type of cell typically performs lactic acid fermentation?

<p>Muscle cells (C)</p> Signup and view all the answers

Which of the following foods or drinks typically results from lactic acid fermentation?

<p>Yogurt (C)</p> Signup and view all the answers

Flashcards

Cellular Respiration Equation

C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy (ATP)

Glycolysis Starting Molecule

Glucose is the starting molecule.

ATP from Glycolysis

2 ATP molecules are produced.

Glycolysis Location

Cytoplasm

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Types of Fermentation

Alcoholic and lactic acid

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Pyruvate in Alcoholic Fermentation

Ethanol

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Organism that performs Alcoholic Fermentation

Yeast

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Pyruvate in Lactic Acid Fermentation

Lactic acid

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Cells that Perform Lactic Acid Fermentation

Muscle cells

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Physical Result of Lactic Acid Fermentation

Muscle fatigue

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Study Notes

  • The chemical equation for cellular respiration is C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy
  • During cellular respiration:
    • Glucose and oxygen gas function as reactants
    • Carbon dioxide, water and ATP function as products
  • Glycolysis takes place in the cytoplasm
  • Glycolysis starts with glucose
  • Glycolysis is anaerobic
  • Three other "storage" molecules for energy besides ATP are glycogen, starch, and fat
  • There are two types of fermentation: alcoholic fermentation and lactic acid fermentation
  • In alcoholic fermentation, pyruvate is converted into ethanol
  • Yeast performs alcoholic fermentation
  • In lactic acid fermentation, pyruvate is converted into lactic acid
  • Muscle cells perform lactic acid fermentation
  • Muscle fatigue is the physical result of lactic acid fermentation in humans
  • Lactic acid fermentation is used to make yogurt

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