EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
3rd Edition
ISBN: 9780137453092
Author: Urry
Publisher: SAVVAS L
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
. 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?
. The transition temperatures of the following membranes are -36°C, 23°C, and 41°C. Which
membrane correlates with which transition temperature? Explain your answer.
Membrane 1) made from entirely phosphatidylcholine and stearate fatty acids
Membrane 2) made from entirely phosphatidylcholine and oleate fatty acids
Membrane 3) made from entirely phosphatidylcholine and palmitate fatty acids
Rat heart muscle operating aerobically fills more than 90% of its ATP needs by oxidative phosphorylation. If each gram of tissue consumes O2 at the rate of 12.0 micromol/min, with glucose as the fuel source.
(a) Calculate the rate at which the heart muscle consumes glucose and produces ATP.
(b) Consider an alternate scenario – what would be the rate of consumption if the energy source was a solely triglycerides whose fatty acyl chains were each 14-C in length and saturated? (Assume the O2 consumption rate remains at 12.0 micromol/min)
(c) For a steady-state concentration of ATP of 6.0 micromol/g of heart muscle tissue, calculate the time required (in seconds) to completely turn over the cellular pool of ATP if glucose us used as the sole fuel source. What does this result indicate about the need for tight regulation of ATP production? (Note: Concentrations are expressed as micromoles per gram of muscle tissue because the tissue is mostly water.)
Chapter 7 Solutions
EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
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
Additional Science Textbook Solutions
Find more solutions based on key concepts
Single penny tossed 20 times and counting heads and tails: Probability (prediction): _______/20 heads ________/...
Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version
Why is it necessary to be in a pressurized cabin when flying at 30,000 feet?
Anatomy & Physiology
What are the cervical and lumbar enlargements?
Principles of Anatomy and Physiology
What are the cervical and lumbar enlargements?
Principles of Anatomy and Physiology
Some people compare DNA to a blueprint stored in the office of a construction company. Explain how this analogy...
Biology: Concepts and Investigations
2. A gene is a segment of DNA that has the information to produce a functional product. The functional product ...
Genetics: Analysis and Principles
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 293arrow_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_forwardhelp?arrow_forward
- Intracellular 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_forwardWhat would be the ATP yield per molecule of glucose in the muscle if glycogen were the source of the glucose?arrow_forward. Liver is primarily a gluconeogenic tissue, whereas muscle is primarily glycolytic. Why does this division of labor makegood physiological sense?arrow_forward
- a Imagine that creatine phosphate, rather than ATP, is the universal energy carrier molecule in the human body. Assume that the cellular concentrations of creatine phosphate, creatine, and phosphate are 21.6 mM, 2.16x10-3 mm, and 3.80 mM, respectively. Calculate the weight of creatine phosphate that would need to be consumed each day by a typical adult human if creatine phosphate could not be recycled. (Estimate the free energy of hydrolysis of creatine phosphate under cellular conditions to determine how many moles required. Use the standard free energy AG = -43.3 kJ/mol, and take the temperature to be 37 °C.) AG= kJ/mol Weight of creatine phosphate consumed = 9arrow_forwardAlso, briefly describe what happens in this scenario to: -Glucose - Glucose - Glycogen - Protein/Amino acids - Triglyceridesarrow_forwardThe most common fatty acid that exists in coconut oil is a fatty acid called lauric acid. This is a 12 carbon saturated (12:0) fatty acid. How many net ATP are produced from the complete oxidation of a single molecule of lauric acid after it enters into a muscle cell? Show steps pleasearrow_forward
- Muscles may become hypoxic during the early stages of exercise, causing lactate to build up. a) Describe in detail how a lack of oxygen might cause lactate to build up in the muscles. b) Explain how lactate (typically thought of as a waste product) may be converted to glucose via gluconeogenesis.arrow_forward5. The sprinter finishes 100 m run; the stayer runs the tenth km. Point out the differences in the energy supply of these runners. To solve the problem: a) draw a diagram of glucose catabolism, which is an energy source for muscles in the stayer; b) indicate the energy yield of the glycolysis and the complete oxidation of glucose, the mechanisms of ATP synthesis; c) write down the substrates involved in the dehydrogenation reaction, specify the path of hydrogen from one of the substrates to oxygen in the ETC; d) indicate the differences in the final products and the energy yield of the metabolic pathways providing ATP in the sprinter and stayer.arrow_forward● ● What is the role of oxygen in aerobic metabolism? How does exercise duration and intensity relate to the metabolic pathway (ATP-PC, Glycolysis, Kreb's Cycle and ETC) utilized?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning
Understanding Nutrition (MindTap Course List)Health & NutritionISBN:9781337392693Author:Eleanor Noss Whitney, Sharon Rady RolfesPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Understanding Nutrition (MindTap Course List)
Health & Nutrition
ISBN:9781337392693
Author:Eleanor Noss Whitney, Sharon Rady Rolfes
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
KINE 2310-Chapter 4: Philosophy of Physical Activity; Author: HBU Online Course Development;https://www.youtube.com/watch?v=8Ky6t3nvP_4;License: Standard youtube license