Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 7.6, Problem 3CC
WHAT IF? During intense exercise, can a muscle cell use fat as a concentrated source of chemical energy? Explain.
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. Intracellular concentrations in resting muscle are as follows: fructose-
6-phosphate, 1.0 mM; fructose-1,6-bisphosphate, 10 mM; AMP, 0.1
mM; ADP, 0.5 mM; ATP, 5 mM; and P;, 10 mM. Is the phosphofruc-
tokinase reaction in muscle more or less exergonic than under stan-
dard conditions? By how much?
Explain why engaging in 30–60 minutes of “aerobics” is promoted as an activity that “burns fat.” Would you get this same “fat burning” from several 20-second sprints? Explain your answer in biochemical terms.
Question:-
Skeletal muscle tissue produces energy in a particular sequence using several separate mechanisms. Of the following options, which best represents the correct sequence?
Answer: glycogen, direct phosphorylation, glycolysis, cellular respiration
Is this the answer??
Chapter 7 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 7.1 - Compare and contrast aerobic and anaerobic...Ch. 7.1 - Name and describe the two ways in which ATP is...Ch. 7.1 - Prob. 3CCCh. 7.2 - During step 6 in Figure 7.9, which molecule acts...Ch. 7.3 - Name the molecules that conserve most of the...Ch. 7.3 - Prob. 2CCCh. 7.4 - Prob. 1CCCh. 7.4 - Prob. 2CCCh. 7.4 - MAKE CONNECTIONS Membranes must be fluid to...Ch. 7.5 - Prob. 1CC
Ch. 7.5 - WHAT IF? A glucose-fed yeast cell is moved from an...Ch. 7.6 - MAKE CONNECTIONS Compare the structure of a fat...Ch. 7.6 - Prob. 2CCCh. 7.6 - WHAT IF? During intense exercise, can a muscle...Ch. 7 - The immediate energy source that drives ATP...Ch. 7 - Which metabolic pathway is common to both...Ch. 7 - In mitochondria, exergonic redox reactions A. are...Ch. 7 - The final electron acceptor of the electron...Ch. 7 - What is the oxidizing agent in the following...Ch. 7 - When electrons flow along the electron transport...Ch. 7 - Most co, from catabolism is released during A....Ch. 7 - DRAW IT The graph here shows the pH difference...Ch. 7 - INTERPRET THE DATA Phosphofructokinase is an...Ch. 7 - Prob. 10TYUCh. 7 - FOCUS ON EVOLUTION ATP synthases are found in the...Ch. 7 - Prob. 12TYUCh. 7 - Prob. 13TYU
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- Chapter: Lipid Metabolism Individuals with abnormally low levels of carnitine in their muscles suffer from muscular weakness during moderate exercise. In addition, their muscles have significantly increased levels of triacylglycerols. (a) Explain these two effects. (b) Can these individuals metabolize muscle glycogen aerobically?arrow_forwardMuscle protein, fat, and glycogen are all reservoirs of energy. In what order are they used during a prolonged fast?arrow_forwardDiscuss briefly (in less than 100 words) the practice of carbohydrate loading for endurance in aerobic exercise. What is the role of glycogen metabolism (glycogenesis and glycogenolysis) and glycolysis in carbohydrate loading? Why is this practice more productive than usual without carbohydrate loading?arrow_forward
- please help! please draw! Starting as a lipid in some holiday prime rib, trace the path that energy and biomass make as that lipid is consumed by a college freshman, transported to a cell in the liver and converted into a carbohydrate, and finally as that carbohydrate is burned for energy in a cell in the cells of the shoulder muscles. Following your diagram/model, provide a written explanation for what you diagram/model depicts. Make sure both your model and explanation are clear, concise, and have the appropriate level of detail to clearly demonstrate you understand cellular respiration and the movement of mass and energy in animals.arrow_forwardIntracellular concentrations in resting muscle are as follows: fructose6-phosphate, 1.0 mM; fructose-1,6-bisphosphate, 10 mM; AMP, 0.1 mM;ADP, 0.5 mM; ATP, 5 mM; and Pi, 10 mM. Is the phosphofructokinasereaction in muscle more or less exergonic than under standard conditions?By how much?arrow_forwardProtein is essential to the building block of muscles. Muscle protein synthesis is a naturally occurring process in which protein is produced to repair muscle damage caused by intense exercise. It is an opposing force to muscle protein breakdown (MPB) in which protein is lost as a result of exercise. (Source: https://www.encyclopedia.com/sports/sports-fitness-recreation-and-leisuremagazines/muscle-protein-synthesis). For example, you are an athlete, and you want to maintain the strength and mass of your muscles. 1. How important is protein synthesis in your body?2. How are you going to boost the protein synthesis in your body? How are you going to boost the amount of essential amino acids and proteins in your body?arrow_forward
- Question:- Use the data below to answer the following question: How much more energy is stored in a gram of fat than in a gram of hydrated glycogen?Fat: 39.1 kJ/gGlycogen: 17.5 kJ/g. In its hydrated form in cells, glycogen binds twice its weight in water. (Please Explain Answer)arrow_forwardA) weight of ATP used in human adult in 24hr Calculated 69.2 kg B) Help - percentage of the persons body weight that this represents?arrow_forwardWhat would be the ATP yield per molecule of glucose in the muscle if glycogen were the source of the glucose?arrow_forward
- The CrossFit workouts you and River perform consist of many bodyweight activities like pushups, pull-ups, and squats. Based on what you have been learning about muscles, what specific events are taking place at the cellular and molecular level of actin and myosin that allow you to AEROBICALLY CONTRACT muscles during these workouts? Hint! Make sure to include in your answer: Ca2+, sliding filament model, and ATParrow_forwardWhat counts as aerobic activity? What are three examples of aerobic activities. How does your heart rate/breathing help you tell the difference between light, moderate, and vigorous intensity activity?arrow_forward. Liver is primarily a gluconeogenic tissue, whereas muscle is primarily glycolytic. Why does this division of labor makegood physiological sense?arrow_forward
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