A2 Booklet 4- Muscles and Homeostasis Flashcards
What is homeostasis?
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What is the structure of skeletal muscle?
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What is the structure of a muscle fibre?
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What is the ultrastructure of skeletal muscle?
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How does a relaxed muscle fibre look?
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How does a tensed muscle fibre look?
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How do actin and myosin work together in muscle fibres?
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What is the mechanism of muscle contraction?
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What is the structure of the neuromuscular junction?
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How does transmission across a neuromuscular junction happen?
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What are the differences between slow twitch and fast twitch muscle fibres?
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How is ATP provided during muscle contraction?
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What is the phosphocreatine system?
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Describe the graph with energy on the y axis, time on x, has ATP, Creatine phosphate, anaerobic and aerobiv metabolism.
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Describe Anaerobic respiration and Aerobic respiration and why they are suited to specific exercise
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What is meant by the term antagonistic?
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What is antagonistic muscle action?
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What different features are maintained in homeostasis?
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Why is a stable core temperature important?
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Why is a stable blood pH important?
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Why is a stable blood glucose concentration important?
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Why is a stable water potential of blood important?
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How is an increase in blood glucose controlled?
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How is a decrease in blood glucose controlled?
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What is a negative feedback mechanism? What triggers it? Draw the diagram
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How is adrenaline controlled?
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What are the two types of diabetes? How do they differ? How are they treated?
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How does osmoregulation work?
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What parts of the kidney do what in osmoregulation?
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What is ultrafiltration?
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What is the function of the proximal convoluted tubule?
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What is the function of the loop of Henle?
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What happens at the distal convoluted tube and collecting duct?
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What happens with a decrease if water potential in the blood?
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What happens with a increase if water potential in the blood?
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What is positive feedback?
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