HUMAN PHYSIO W/ APR & PHILS (LL) PKG
15th Edition
ISBN: 9781265382353
Author: Fox
Publisher: MCGRAW-HILL HIGHER EDUCATION
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 12, Problem 39RA
Summary Introduction
To review:
The percent of energy expenditure by free fatty acids when:
A person does mild exercise from 90-120 minutes
Heavy exercise from 0-30 minutes.
Introduction:
The production of energy in the skeletal muscles takes place by
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
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.
How many ATP molecules (or equivalents) are consumedduring: a. activation of one fatty acids? _
Select the best answer or answers from the choices given: The net gain of ATP from the complete metabolism (aerobic) of glucose is closest to (a) 2, (b) 30, (c) 3, (d) 4.
Chapter 12 Solutions
HUMAN PHYSIO W/ APR & PHILS (LL) PKG
Ch. 12 - Describe the actions of muscles when they...Ch. 12 - Describe the different levels of muscle structure,...Ch. 12 - Define the terms motor unit and innervation ratio...Ch. 12 - Using the concept of recruitment, explain how...Ch. 12 - With reference to the sliding filament theory,...Ch. 12 - Prob. 3bCPCh. 12 - Describe a cycle of cross-bridge activity during...Ch. 12 - Prob. 4bCPCh. 12 - Use a flowchart to show the sequence of events...Ch. 12 - Prob. 5bCP
Ch. 12 - Explain how graded contractions and smooth,...Ch. 12 - Prob. 6bCPCh. 12 - Prob. 7aCPCh. 12 - Describe the relationship between the resting...Ch. 12 - Prob. 8CPCh. 12 - Prob. 9CPCh. 12 - Explain the different causes of muscle fatigue...Ch. 12 - Prob. 11CPCh. 12 - Prob. 12aCPCh. 12 - Describe all of the events that occur from the...Ch. 12 - Prob. 13CPCh. 12 - Explain the significance of reciprocal innervation...Ch. 12 - Describe the functions of gamma motor neurons and...Ch. 12 - Explain how cardiac muscle differs from skeletal...Ch. 12 - Contrast the structure of a smooth muscle cell...Ch. 12 - Distinguish between single-unit and multiunit...Ch. 12 - Describe the events by which depolarization of a...Ch. 12 - Prob. 1RACh. 12 - Prob. 2RACh. 12 - Prob. 3RACh. 12 - Prob. 4RACh. 12 - Prob. 5RACh. 12 - Prob. 6RACh. 12 - Prob. 7RACh. 12 - Electrical excitation of a muscle fiber most...Ch. 12 - The energy for muscle contraction is most directly...Ch. 12 - Prob. 10RACh. 12 - Prob. 11RACh. 12 - Prob. 12RACh. 12 - Which of these types of muscle cells are not...Ch. 12 - Prob. 14RACh. 12 - In an isotonic muscle contraction,...Ch. 12 - Prob. 16RACh. 12 - Prob. 17RACh. 12 - Prob. 18RACh. 12 - Using the concept of motor units, explain how...Ch. 12 - Prob. 20RACh. 12 - Explain why the myosin heads don't bind to the...Ch. 12 - Using the sliding filament theory of contraction,...Ch. 12 - Prob. 23RACh. 12 - Prob. 24RACh. 12 - Prob. 25RACh. 12 - What changes occur in muscle metabolism as the...Ch. 12 - Prob. 27RACh. 12 - Compare cardiac muscle, single-unit smooth muscle,...Ch. 12 - Your friend eats huge helpings or pasta for two...Ch. 12 - Prob. 30RACh. 12 - Prob. 31RACh. 12 - How is electrical excitation of a skeletal muscle...Ch. 12 - Prob. 33RACh. 12 - Prob. 34RACh. 12 - Prob. 35RACh. 12 - Prob. 36RACh. 12 - Refer to figure 12.22 to answer the following...Ch. 12 - Refer to figure 12.22 to answer the following...Ch. 12 - Prob. 39RACh. 12 - Refer to figure 12.22 to answer the following...
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
- Can you answer all the parts to following question, true or false: Q23: A: The breakdown of a fatty acid produces more energy than the breakdown of glucose (True or False) B: Acetyl-CoA can be directly converted to pyruvate through the TCA (True or False) C: Glucagon stimulates the liver to store energy by performing glycolysis (True or False) D: The keto diet is dangerous due to the risk of developing ketoacidosis (True or False)arrow_forwardBelow is a list of steps that occur after an exercising muscle cell begins degrading amino acids for ATP production. For each step, choose (A) if the process occurs in the muscle cell and (B) if the process occurs in the liver. It will be easiest to answer this question if you first put the steps in order, then decide in which organ they occur. ______ Alanine is transaminated with a-ketoglutarate.______ Branched chain amino acids are transaminated with a-ketoglutarate.______ Glutamate is deaminated.______ Glutamate is transaminated with pyruvate.______ Ketoacid skeletons resulting from branch chain amino acids enter the CAC.______ Pyruvate enters gluconeogenesis.______ Urea is formed from the nitrogen removed from the original branched chain amino acid.arrow_forwardWhat would be the ATP yield per molecule of glucose in the muscle if glycogen were the source of the glucose?arrow_forward
- How does a ketogenic diet decrease the level of urea in obese patients and increase the level of creatine in obese patients? (explain on a molecular level)arrow_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_forwardAccount for the fractions of ATP generated by fatty acid breakdown and the citric acid based on palmitic acid. (please do the math)arrow_forward
- During periods of prolonged exercise, muscles burn fat released from adipocytes in addition to glucose. Explain howthe need for additional fatty acids by muscle is communicated to the adipocytes.arrow_forwardOrder the following sources of energy (from first used to last used) when muscles are called upon to do extensive work:(a) Fatty acids from triacylglycerols(b) ATP(c) Glycogen(d) Creatine phosphate(e) Glucosearrow_forwardHow many ATP are produced from a triglyceride containing three 14 carbon fatty acids? NOTE: Assume that glycerol is converted to Glyceraldehyde-3-Phosphate (step 6 of glycolysis).arrow_forward
- What is the fate of hydrogen atoms removed from glucose during glycolysis when oxygen is present in muscle cells? How does it compare with the fate ofhydrogen atoms removed from glucose when the amount of available oxygen is insufficient to support aerobic respiration?arrow_forwardIn the absence of oxygen is glucose the major source of ATP?arrow_forwardSince ancient times it has been observed that certain game birds, such as grouse, quail, and pheasants, are easily fatigued. The Greek historian Xenophon wrote: “The bustards . . . can be caught if one is quick in starting them up, for they will fly only a short distance, like partridges, and soon tire; and their flesh is delicious.” The flight muscles of game birds rely almost entirely on the use of glucose 1-phosphate for energy, in the form of ATP . The glucose 1-phosphate is formed by the breakdown of stored muscle glycogen, catalyzed by the enzyme glycogen phosphorylase. The rate of ATP production is limited by the rate at which glycogen can be broken down. During a “panic flight,” the game bird’s rate ofglycogen breakdown is quite high, approximately 120 mmol/min of glucose 1-phosphate produced per gram of fresh tissue. Given that the flight muscles usually contain about 0.35% glycogen by weight, calculate how long a game bird can fly. (Assume the average molecular weight of a…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning