Textbook Question
Where does the citric acid cycle occur in eukaryotes? a. in the cytosol of cells b. in the intermembrane space of mitochondria c. in the inner membrane of mitochondria d. in the matrix of mitochondria
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Ch. 9 - Cellular Respiration and Fermentation
Freeman7th EditionBiological ScienceISBN: 9783584863285
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Table of contents
- Ch. 1 - Biology: The Study of Life11
- Ch. 2 - Water and Carbon: The Chemical Basis of Life10
- Ch.3 - Protein Structure and Function11
- Ch.4 - Nucleic Acids and the RNA World10
- Ch. 5 - An Introduction to Carbohydrates10
- Ch. 6 - Lipids, Membranes, and the First Cells10
- Ch. 7 - Inside the Cell10
- Ch. 8 - Energy and Enzymes: An Introduction to Metabolism10
- Ch. 9 - Cellular Respiration and Fermentation16
- Ch. 10 - Photosynthesis14
- Ch. 11 - Cell-Cell Interactions14
- Ch. 12 - The Cell Cycle12
- Ch. 13 - Meiosis13
- Ch. 14 - Mendel and the Gene32
- Ch. 15 - DNA and the Gene: Synthesis and Repair8
- Ch. 16 - How Genes Work35
- Ch. 17 - Transcription, RNA Processing, and Translation16
- Ch. 18 - Control of Gene Expression in Bacteria19
- Ch. 19 - Control of Gene Expression in Eukaryotes17
- Ch. 20 - The Molecular Revolution: Biotechnology, Genomics, and New Frontiers23
- Ch. 21 - Genes, Development, and Evolution13
- Ch. 22 - Evolution by Natural Selection17
- Ch. 23 - Evolutionary Processes13
- Ch. 24 - Speciation15
- Ch. 25 - Phylogenies and the History of Life13
- Ch. 26 - Bacteria and Archaea17
- Ch. 27 - Diversification of Eukaryotes19
- Ch. 28 - Green Algae and Land Plants18
- Ch. 29 - Fungi19
- Ch. 30 - An Introduction to Animals9
- Ch. 31 - Protostome Animals20
- Ch. 32 - Deuterostome Animals19
- Ch. 33 - Viruses16
- Ch. 34 - Plant Form and Function16
- Ch. 35 - Water and Sugar Transport in Plants16
- Ch. 36 - Plant Nutrition13
- Ch. 37 - Plant Sensory Systems, Signals, and Responses16
- Ch. 38 - Flowering Plant Reproduction and Development16
- Ch. 39 - Animal Form and Function16
- Ch. 40 - Water and Electrolyte Balance in Animals16
- Ch. 41 - Animal Nutrition16
- Ch. 42 - Gas Exchange and Circulation16
- Ch. 43 - Animal Nervous Systems16
- Ch. 44 - Animal Sensory Systems16
- Ch. 45 - Animal Movement11
- Ch. 46 - Chemical Signals in Animals16
- Ch. 47 - Animal Reproduction and Development18
- Ch. 48 - The Immune System in Animals16
- Ch. 49 - An Introduction to Ecology16
- Ch. 50 - Behavioral Ecology16
- Ch. 51 - Population Ecology16
- Ch. 52 - Community Ecology20
- Ch. 53 - Ecosystems and Global Ecology16
- Ch. 54 - Biodiversity and Conservation Ecology16
Chapter 9, Problem 1
Where does the citric acid cycle occur in eukaryotes?a. in the cytosol of cellsb. in the intermembrane space of mitochondriac. in the inner membrane of mitochondriad. in the matrix of mitochondria
Verified step by step guidance1
Identify the location of the citric acid cycle, also known as the Krebs cycle, which is a key metabolic pathway that contributes to the energy supply of the cell.
Understand that the citric acid cycle involves a series of enzyme-catalyzed chemical reactions that are crucial for the production of ATP and other high-energy compounds.
Recognize that the mitochondrion is the organelle where the citric acid cycle occurs in eukaryotic cells.
Distinguish between the different parts of the mitochondrion: the outer membrane, the intermembrane space, the inner membrane, and the matrix.
Conclude that the specific location within the mitochondrion where the citric acid cycle takes place is the matrix.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Citric Acid Cycle (Krebs Cycle)
The citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions used by all aerobic organisms to generate energy. It plays a crucial role in cellular respiration by oxidizing acetyl-CoA to produce ATP, NADH, and FADH2, which are essential for energy production in cells.
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01:37
Krebs Cycle
Mitochondria Structure
Mitochondria are double-membraned organelles found in eukaryotic cells, often referred to as the 'powerhouses' of the cell. They consist of an outer membrane, an inner membrane, and an internal space called the matrix, where the citric acid cycle occurs. Understanding the structure of mitochondria is essential for grasping where specific metabolic processes take place.
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04:45Mitochondria Structure
Cellular Respiration
Cellular respiration is the metabolic process by which cells convert nutrients into energy, primarily in the form of ATP. It involves several stages, including glycolysis, the citric acid cycle, and oxidative phosphorylation. The citric acid cycle is a key component of this process, occurring in the mitochondrial matrix, where it contributes to the overall energy yield of the cell.
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Related Practice
Textbook Question
What does the chemiosmotic hypothesis claim?
a. ATP is generated using phosphates taken from intermediates in the electron transport chain.
b. ATP is generated using a phosphate gradient produced by glycolysis and the citric acid cycle.
c. ATP is generated using a proton-motive force that is produced by the electron transport chain.
d. Water is generated using electrons taken from NADH and FADH2 and transported through the electron transport chain.
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Textbook Question
After glucose is fully oxidized by glycolysis, pyruvate processing, and the citric acid cycle, where is most of its energy stored?
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Textbook Question
After glucose is fully oxidized by glycolysis, pyruvate processing, and the citric acid cycle, where is most of its energy stored?
1788
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