Ch.9 - RespirationWorksheetSee all chapters
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Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
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Ch.23 - Evolution by Natural Selection
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Ch.25 - Speciation
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Ch.28 - Prokaryotes
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Ch.32 - Overview of Animals
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Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
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Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
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Ch.47 - Nervous System
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Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology

Solution: What is the key metabolic difference between anaerobic respiration and fermentation?

Problem

What is the key metabolic difference between anaerobic respiration and fermentation?

Solution

Fermentation: The process by which glucose is completely oxidized in absence of oxygen, to form alcohol or lactic acid and a small amount of energy is said to be fermentation. 

  • In this case, different enzymes formed within the cells secrete out of the cells and take part in the reaction. Here, the external glucose is used.
  • It extends glycolysis, the first stage of metabolism, to produce usable energy. It is an extremely common way of gaining energy from food in the absence of sufficient oxygen.
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