IA MODIFIED MASTERING BIOLOGY WITH E TEX
12th Edition
ISBN: 9780136781752
Author: Urry
Publisher: PEARSON
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Question
Chapter 9.6, Problem 4CC
Summary Introduction
To explain: Whether fat can be used as a concentrated source of chemical energy by muscle cells during intense exercise.
Introduction: Fatty acids and glycerol, the monomers of fat, enter the glycolysis step in the presence of oxygen. From there, they progress to the citric acid cycle and the electron transport chain, where energy is generated in the form of ATP.
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Students have asked these similar questions
23. The diagram below represents an experimental set-up to demonstrate an aspect
during muscle construction.
fixed support
String
Kymograph-
Frog
muscle
Pivot
(a) State what would happen if a solution of ATP was added to the muscle.
(b) Explain why it is necessary to use muscle from a freshly killed animal.
(c) Name the part of the mammal represented by:
(1) pivot.
(ii) string.
(iii) fixed support.
4. The apparatus below were used to investigate a certain physiological process
in plants.
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.)
Predict whether creatine kinase will operate in the direction of ATP synthesis or phosphocreatine synthesis at 25°C when [ATP] = 4 mM, [ADP] = 0.15 mM, [phosphocreatine] = 2.5 mM, and [creatine] = 1 mM.
Chapter 9 Solutions
IA MODIFIED MASTERING BIOLOGY WITH E TEX
Ch. 9.1 - Compare and contrast aerobic and anaerobic...Ch. 9.1 - WHAT IF? If the following redox reaction...Ch. 9.2 - Prob. 1CCCh. 9.3 - Prob. 1CCCh. 9.3 - What process in your cells produce the CO2 that...Ch. 9.3 - Prob. 3CCCh. 9.4 - Prob. 1CCCh. 9.4 - WHAT IF? In the absence of O2 as in question 1,...Ch. 9.4 - MAKE CONNECTIONS Membranes must be fluid to...Ch. 9.5 - Consider the NADH formed during glycolysis. What...
Ch. 9.5 - WHAT IF? A glucose-fed yeast cell is moved from...Ch. 9.6 - MAKE CONNECTIONS Compare the structure of a fat...Ch. 9.6 - Prob. 2CCCh. 9.6 - Prob. 3CCCh. 9.6 - Prob. 4CCCh. 9 - Describe the difference between the two processes...Ch. 9 - Which reactions in glycolysis are the source of...Ch. 9 - What molecular products indicate the complete...Ch. 9 - Briefly explain the mechanism by which ATP...Ch. 9 - Prob. 9.5CRCh. 9 - Prob. 9.6CRCh. 9 - Level 1: Knowledge/Comprehension 1. The immediate...Ch. 9 - Prob. 2TYUCh. 9 - Prob. 3TYUCh. 9 - Prob. 4TYUCh. 9 - What is the oxidizing agent in the following...Ch. 9 - When electrons flow along the electron transport...Ch. 9 - Prob. 7TYUCh. 9 - Prob. 8TYUCh. 9 - Prob. 9TYUCh. 9 - Prob. 10TYUCh. 9 - INTERPRET THE DATA Phosphofructokinase is an...Ch. 9 - DRAW IT The graph here shows the pH difference...Ch. 9 - EVOLUTION CONNECTION AIP synthases are found in...Ch. 9 - SCIENTIFIC INQUIRY In the 1930s, some physicians...Ch. 9 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Coenzyme Q (CoQ) is sold...
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Similar questions
- 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??arrow_forwardIs aerobic respiration more or less efficient than glycolysis? Explain your answer.arrow_forwardWhat are two major functions of ATP hydrolysis in skeletal muscleactivity?arrow_forward
- 99.arrow_forwardis this stement false? Intracellular concentrations in resting muscle are as follows: Fructose-6-phosphate (1.0 mM)Fructose-(1-6)-bisphosphate (10.0 mM)AMP (0.1 mM)ADP (0.5 mM)ATP (5.0 mM)Pi (10.0 mM)Under the above conditions the Phosphofructokinase reaction in muscle is more exergonic than under standard conditions.arrow_forwardVISUAL SKILLS What will happen in a muscle cell thathas used up its supply of oxygen and ATP? (ReviewFigures 9.18 and 9.20.)arrow_forward
- 2arrow_forwardLET'S APPLY 2: COMPUTATION - Directions: Compute the following questions. Write your solution and answer on your answer sheet. 1 GLUCOSE = 40 ATP MOLECULES (TOTAL) 1 GLUCOSE = 36 ATP MOLECULES (NET) 1 ATP MOLECULE = 7.3 kCal 1. How many ATP molecules will be produced when 100 molecules of glucose undergo cellular respiration? a. Total ATP produced: b. Total net ATP produced: 2. Compute for the amount of energy in kcal of 1a and 1b. a. Energy in kcal of the total ATP produced: b. Energy in kcal of the total net ATP produced:arrow_forwardVitamin D is produced in the skin when 7‑dehydrocholesterol reacts with UVB rays (ultraviolet B) having wavelengths between 270 nm and 300 nm. What is the energy range ?min≤?≤?max of the UVB photons?arrow_forward
- C7 Q9:arrow_forwardWhy hydrotropic movements are powerful than geotropic movements?arrow_forwardCalculate the rate enhancement for the enzyme pair: Enzyme 1: Kcat (sec-1)= 5.5 KM (µ M) = 1245 Kcat / KM = 0.00442 (µ M-1 sec-1) Enzyme 2: Kcat (sec-1)= 3.2 KM (µ M) = 1785 Kcat / KM = 0.00179 (µ M-1 sec-1)arrow_forward
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