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The type of fracture that occurs in osteoporosis:
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Ch. 3 Cells: The Living Units
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091
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TOC.tableOfContents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units24
- Ch. 4 Tissue: The Living Fabric19
- Ch. 5 The Integumentary System10
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton11
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue23
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity28
- Ch. 14 The Autonomic Nervous System18
- Ch. 16 The Endocrine System26
- Ch. 17 Blood27
- Ch. 18 The Cardiovascular System: The Heart22
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues16
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses29
- Ch. 22 The Respiratory System20
- Ch. 23 The Digestive System30
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System25
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System23
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Capitolo 3, Problema 18
Differentiate between primary and secondary active transport processes.
Guida verificata passo dopo passo1
Step 1: Define primary active transport as the process where energy, usually from ATP hydrolysis, is directly used to move molecules against their concentration gradient through a membrane protein pump.
Step 2: Define secondary active transport as the process where the movement of one molecule down its concentration gradient provides the energy to transport another molecule against its gradient, without direct ATP usage.
Step 3: Explain that in primary active transport, the energy source is direct (e.g., ATP), while in secondary active transport, the energy is indirect, relying on the electrochemical gradient established by primary active transport.
Step 4: Differentiate the types of secondary active transport: symporters move two substances in the same direction, while antiporters move them in opposite directions.
Step 5: Summarize by highlighting that primary active transport creates the gradient, and secondary active transport uses that gradient to move other substances, emphasizing their interdependence in cellular processes.
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Primary Active Transport
Primary active transport directly uses energy, usually from ATP hydrolysis, to move molecules against their concentration gradient. This process involves specific transport proteins like pumps, such as the sodium-potassium pump, which maintain essential cellular gradients.
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02:53
Primary Active Transport
Secondary Active Transport
Secondary active transport uses the energy stored in the electrochemical gradient created by primary active transport to move other substances against their gradient. It does not use ATP directly but relies on co-transporters or exchangers, such as symporters and antiporters.
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06:57Secondary Active Transport
Concentration Gradient and Energy Coupling
Both transport types move substances against their concentration gradients, requiring energy. Primary active transport uses ATP directly, while secondary active transport couples the movement of one molecule down its gradient to drive the uphill transport of another molecule.
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04:51Concentration Gradients and Diffusion
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Comment on the role of the sodium-potassium pump in maintaining a cell's resting membrane potential.
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