Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

10. Anerobic Respiration

Fermentation

Cell Biology

10. Anerobic Respiration

Fermentation

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Multiple Choice

True or False:The creation of pyruvate in the absence of oxygen is more energetically favorable than the creation of pyruvate in the presence of oxygen.

True

False

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Verified step by step guidance

Understand the context: Pyruvate is a key intermediate in several metabolic pathways, and its formation can occur under both aerobic (with oxygen) and anaerobic (without oxygen) conditions.

Consider the process of glycolysis: Glycolysis is the pathway that converts glucose into pyruvate, yielding ATP and NADH. This process occurs in the cytoplasm and does not require oxygen.

Analyze the role of oxygen: In the presence of oxygen, pyruvate can enter the mitochondria and be further oxidized in the citric acid cycle, leading to more ATP production through oxidative phosphorylation.

Compare energy yields: Under anaerobic conditions, pyruvate is converted to lactate or ethanol, yielding less ATP compared to aerobic respiration where pyruvate oxidation leads to a higher ATP yield.

Conclude based on energy favorability: The creation of pyruvate in the presence of oxygen is more energetically favorable due to the higher ATP yield from subsequent aerobic processes, making the statement 'True' incorrect.