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Questions and Answers
What is the primary role of the Electron Transport Chain?
What is the primary role of the Electron Transport Chain?
Anaerobic respiration produces more ATP than aerobic respiration.
Anaerobic respiration produces more ATP than aerobic respiration.
False
What are the end products of lactic acid fermentation?
What are the end products of lactic acid fermentation?
Lactic acid and 2 ATP
In alcoholic fermentation, glucose is converted to CO2 and _____.
In alcoholic fermentation, glucose is converted to CO2 and _____.
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Match the type of respiration with its location:
Match the type of respiration with its location:
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What is the primary purpose of cellular respiration?
What is the primary purpose of cellular respiration?
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The Kreb's cycle occurs in the cytoplasm.
The Kreb's cycle occurs in the cytoplasm.
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Name one product of glycolysis.
Name one product of glycolysis.
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Cellular respiration starts in the ______ and ends in the ______.
Cellular respiration starts in the ______ and ends in the ______.
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Which of the following stages of cellular respiration produces the most ATP?
Which of the following stages of cellular respiration produces the most ATP?
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Match the following components of cellular respiration with their respective stages:
Match the following components of cellular respiration with their respective stages:
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All organisms use glycolysis as part of cellular respiration.
All organisms use glycolysis as part of cellular respiration.
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What are the two main types of electron carriers produced in the Kreb's cycle?
What are the two main types of electron carriers produced in the Kreb's cycle?
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Study Notes
Cellular Respiration Overview
- All organisms perform cellular respiration
- Cellular respiration is a catabolic pathway
- Catabolism breaks down molecules, releasing energy
Cellular Respiration Details
- Cellular respiration is a chemical process
- It uses oxygen to convert glucose's chemical energy into ATP
- The balanced equation is: C6H12O6 + 6O2 → 6CO2 + 6H2O
- This yields 36-38 ATP molecules
Cellular Respiration Stages
- Glycolysis (in the cytoplasm)
- Glucose is converted to pyruvic acid
- 2 ATP and 2 NADH are created
- Every organism uses glycolysis
- Kreb's Cycle (in the mitochondrial matrix)
- Releases 6 CO2 molecules
- Creates 2 ATP molecules
- Forms NADH and FADH2 (electron carriers) for the final reaction
- Electron Transport Chain (in the inner mitochondrial membrane)
- Electrons from NADH and FADH2 create ATP
- Oxygen is used to form water (O2 → H2O)
ATP Production
- Total ATP production from cellular respiration is 32-38
Energy Producing Pathway
- Cellular respiration is the most common and efficient energy pathway
Types of Cellular Respiration
-
Anaerobic Respiration
- Does not require oxygen
- Occurs in the cytoplasm
- Stops after glycolysis
- Produces 2 ATP molecules per glucose
- Two types:
- Lactic acid fermentation
- Converts glycolysis products to lactic acid
- Occurs in animals and bacteria
- Produces no CO2
- Alcoholic fermentation
- Converts glycolysis products to CO2 and ethyl alcohol
- Used by microorganisms (e.g., yeast)
- Lactic acid fermentation
-
Aerobic respiration
- Requires oxygen
- Occurs in the cytoplasm and mitochondria
- Produces 36-38 ATP
- Involves glycolysis, Krebs cycle, and electron transport chain.
Mitochondria Structure
- Contains a double outer membrane
- Has a folded inner membrane (cristae)
- Possesses an outer compartment and a matrix
- Folding increases surface area
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Description
Test your knowledge on cellular respiration with this quiz. Explore the chemical processes, stages including glycolysis, Kreb's Cycle, and the electron transport chain, along with their energy outputs. Understand how organisms utilize these pathways to convert glucose into ATP effectively.
