MindTap Biology, 1 term (6 months) Printed Access Card for Starr/Taggart/Evers/Starr's Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305269842
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 7, Problem 1CT
Summary Introduction
To explain: The reason that the cyanide poisoning starts with the same symptoms as altitude sickness.
Concept introduction:
At a higher altitude, oxygen concentration decreases in the air. It creates shortness of breath due to the low oxygen concentration. Cyanide binds to cytochrome c oxidase that prevents the reduction of the oxygen molecule as it stops the transfer of electrons in the final steps of electron transfer chain.
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The higher the altitude the lower the oxygen level in air. Climbers of very tall mountains risk altitude sickness which is characterized by shortness of breath, weakness, dizziness, and confusion. The early symptoms of cyanide poisoning are the same as those for altitude sickness.
Cyanide binds tightly to cytochrome c oxidase, a protein complex that is the last component of the mitochondrial electron transfer chain. Cytochrome c oxidase with bound cyanide can no longer transfer electrons.
Explain why cyanide poisoning starts with the same symptoms as altitude sickness.
During aerobic respiration in the inner mitochondrial membrane, what happens to the oxygen atoms that were originally present in substrate O2 molecules?
they end up in carbon dioxide, glucose, and water molecules
they end up in both glucose and water molecules
they end up in carbon dioxide molecules only
they end up in glucose molecules only
they end up in water molecules only
A What is the main driving force for massive production of ATP molecules in the mitochondria?
1 point proton gradient established from electron transport system
2 electrons obtained from the citric acid cycle
3 reduction of oxygen by glycolysis
4 transport of water via ATP synthase
B What are major products from the citric acid cycle?
1 GTP, oxygen
2 NADH, carbon dioxide
3 water, NADH
4 ATP, oxygen
Chapter 7 Solutions
MindTap Biology, 1 term (6 months) Printed Access Card for Starr/Taggart/Evers/Starr's Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 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 metabolic pathways...Ch. 7 - Which molecule does not form during glycolysis? a....Ch. 7 - Prob. 5SQCh. 7 - Which of the following reaction pathways is not...Ch. 7 - Prob. 7SQCh. 7 - Prob. 8SQCh. 7 - Prob. 9SQCh. 7 - Mitochondrial Abnormalities in Tetralogy of Fallot...
Ch. 7 - Mitochondrial Abnormalities in Tetralogy of Fallot...Ch. 7 - Mitochondrial Abnormalities in Tetralogy of Fallot...Ch. 7 - Prob. 10SQCh. 7 - Most of the energy that aerobic respiration...Ch. 7 - Prob. 12SQCh. 7 - Prob. 13SQCh. 7 - Prob. 14SQCh. 7 - Match the term with the best description. _____...Ch. 7 - Prob. 1CTCh. 7 - As you learned, membranes impermeable to hydrogen...Ch. 7 - Prob. 3CT
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