Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 7, Problem 10SQ
Which of the following is not produced by an animal muscle cell operating under anaerobic conditions?
- a. heat
- b. pyruvate
- c. PGAL
- d. ATP
- e. lactate
- f. oxygen
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The “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 ethanol
Which of the following is NOT a stock form of the key molecules for energy generation in muscle?
A. Creatine phosphate
B. Hemoglobin
C. Glycogen
D. Myoglobin
Which of the following statements is (are) accurate about aerobic and anaerobic respiration?a. Aerobic respiration is best for sprints.b. Anaerobic respiration is best for long distances because it does not need large amounts of oxygen.c. Aerobic respiration is faster.d. Aerobic respiration produces more energy per glucose molecule.e. Both aerobic respiration and anaerobic respiration start with glycolysis.
Chapter 7 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 7 - Prob. 1DAACh. 7 - Prob. 2DAACh. 7 - Prob. 3DAACh. 7 - Is the following statement true or false? Unlike...Ch. 7 - Glycolysis starts and ends in the ___. a. nucleus...Ch. 7 - Which of the following pathways requires molecular...Ch. 7 - Which molecule does not form during glycolysis? a....Ch. 7 - In eukaryotes, the final reactions of aerobic...Ch. 7 - Prob. 6SQCh. 7 - Prob. 7SQ
Ch. 7 - Most of the energy that aerobic respiration...Ch. 7 - Put the following pathways in the order they occur...Ch. 7 - Which of the following is not produced by an...Ch. 7 - Prob. 11SQCh. 7 - Prob. 12SQCh. 7 - Which of the following molecules can be oxidized...Ch. 7 - Prob. 14SQCh. 7 - Match the term with the best description. _____...Ch. 7 - Prob. 1CTCh. 7 - Prob. 2CT
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- Which of the following is not produced by an animal muscle cell operating under anaerobic conditions? a. heat d. ATP b. pyruvate e. lactate c. PGAL f. oxygenarrow_forwardIn the presence of high ratio of NADH/NAD in a muscle cell glucose will continue towards which metabolic pathway: a. Formation of lactic acid b. Formation of acetyl CoA c. Storage of glycogen d. Production of 34 ATP + H20 and CO2 e. Krebs cyclearrow_forwardWhich of the following best describes the DIFFERENCE between aerobic and anaerobic? A. aerobic respiration involves oxygen B. anaerobic respiration involves oxygen C. aerobic respiration occurs during glycolysis and anaerobic during the citric acid cycle and electron transport D. anaerobic respiration produces a much greater amount of ATP compared to aerobicarrow_forward
- Which of the following statements describes smoothmuscle cells?a. They are resistant to fatigue.b. They have a rapid onset of contractions.c. They cannot exhibit tetanus.d. They primarily use anaerobic metabolism.arrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Stored ATP and creatine phosphate are immediate energy sources for muscle fibers. b. Glycolytic catabolism occurs in the mitochondria and requires oxygen. c. Glycolytic catabolism provides enough ATP to fuel from several minutes to a few hours of activity. d. Oxidative catabolism may oxidize the products of glycolysis, fatty acids, and amino acidsarrow_forwardA muscle tissue in a highly active metabolic state (llihä jayl ib) will have - ATP/ADP and ---NADH/NAD+ -- Select one: O a. high / high O b. low / high O c. medium/medium d. high / lowarrow_forward
- Which of these conditions would you expect to find within the legmuscle fibers of a world-class marathon runner?a. myoglobin-poor c. primarily anaerobicb. contract very quickly d. numerous mitochondriaarrow_forwardWhich of the following is associated with the H+ proton? a. Acts as a buffer against changes to muscle pH b. Accumulation impairs calcium handling by the sarcoplasmic reticulum (SR) c. Necessary molecule for the re-synthesis of ATP within the mitochondria d. All of the above e. Both B and C are correctarrow_forwardMuscle contraction is the result of critical steps characterized by conformational changes to protein structures in the supramolecule. Which of the following conformational changes requires energy, i.e. ATP hydrolysis? A. Binding of calcium to tropomyosin changing its conformation and exposing a binding site in troponin B. Binding of myosin to troponin resulting in the power stroke and cross-bridge cycle of muscle contraction. C. Disruption in the binding of the myosin head to troponin preceding its release and relaxation back to its activated form. D. Binding of ATP to the myosin head bound to troponin.arrow_forward
- In muscle cells, myosin molecules continue moving along actin molecules as long as: A. ATP is present and intracellular Ca2+ is high. B. ADP is present and intracellular acetylcholine is high. C. ATP is present and troponin is not bound to Ca2+. D.ATP is present and intracellular Ca2+ is low. E. ADP is present and tropomyosin is released from intracellular stores. QUESTION 27 Lamellipodia and filopodia frequently occur near the edges of cells. These membrane features: A. are supported by intermediate filaments, such as keratin. B. result from the polymerization of actin filaments. C. result from the contraction of actin-myosin. D. probably do not serve any useful purpose to the cell. E. are directly linked to the microtubule organizing center. QUESTION 28 Sort the following events to reflect the sequence during smooth muscle contraction upon delivery of muscle stimu 3. Activation of the myosin light-chain kinase 5. Interaction of myosin head with actin 4. Phosphorylation of myosin 1.…arrow_forwardWhich of the following statements about skeletal muscle is CORRECT? Select one: a. An increase in Na+ concentration in the cytosol starts muscle filament sliding. b. The muscle is non-striated and involuntary. c. The muscle is involved in shivering thermogenesis. d. The muscle contracts in response to parasympathetic stimulation. e. The muscle contracts in response to hormones.arrow_forwardWhich of the following is NOT true about glycolytic fast-twitch cells? A. They are only found in invertebrates. B. They primarly get ATP through glycoloysis and lactic acid fermentation C. They are powerful for short bursts of time. D. They do not require oxygenarrow_forward
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