Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Continued strenuous activity can cause lactate to accumulate in muscles. After the activity stops, the lactate is converted into pyruvate and used as an energy source. Explain how pyruvate can be used to produce ATP.
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- Explain the role of vitamin C in the synthesis of stable collagenarrow_forwardWhich of the following is the correct summary of the anaerobic breakdown of glucose in the skeletal muscle? Glucose + ADP + Pi ⟶ lactate + ATP Glucose + 2ADP + 2Pi ⟶ 2 lactate + 2ATP Glucose + 2ADP + 2Pi + 2NAD+ ⟶ 2 pyruvate + 2ATP + 2NADH + 2H+ Glucose + ADP + Pi ⟶ pyruvate + ATP Glucose + 2ADP + 2Pi ⟶ 2 pyruvate + 2ATParrow_forwardIn muscles, anaerobic respiration has an advantage over aerobic respiration in that it: A) Has a high energy lactic acid waste, rather than CO2 B) Produces alcohol and carbon dioxide C) is a shorter, quicker way to produce ATParrow_forward
- Explain in detail why fast-twitch fibers will use anaerobic respiration rather than aerobic respiration even though aerobic respiration is about 20 times more efficient in terms of ATP produced per each glucose molecule?arrow_forwardDescribe why lactic acid is produced during a prolonged strenuous activity and how lactic acid affects the muscle(s) that are being exposed to lactic acid. Lastly, in your response please indicate where lactic acid goes to be safely decomposed and stored. In your response, you should mention fatigue, anaerobic respiration, and the liver.arrow_forwardWhat are the three major mechanisms by which exercise increases glycolytic rate?arrow_forward
- Why is oxygen consumption a good measure of overall metabolic rate of an aerobic organism?arrow_forwardThe “glycolytic” white fibers in Human Skeletal Muscle: a. lack myosin b. are used for rapid contraction “burst” exercise c. oxidize glucose to pyruvate and then release lactic acid into the bloodstream d. produce ketone bodies e. produce ethanolarrow_forwardI played field hockey for 1 hour and my Fitbit Watch says that I expended 1,085 Calories. If triglycerides in my adipose (fat) cells powered all that activity, how may grams of fat were consumed in powering that exercise? (Hint: the Calorie Content of Fats you determined in Lab Exercise 9A was 8.9 Calories/g): Show your calculation…arrow_forward
- What happens, metabolically, to the body id the lactate is not cleared from the muscles?arrow_forwardList (in order) the steps of aerobic respiration when glucose is oxidized as the fuel source and briefly describe what is happening during each step.arrow_forwardWhat is the advantage of converting pyruvate into lactate in skeletal muscle?arrow_forward
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