WHAT IS LIFE? A GUIDE TO BIO W/PHYSIO
20th Edition
ISBN: 9781319421670
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 22, Problem 6MC
Summary Introduction
Introduction:
Birds have a supply of oxygen-rich air, during both inhalation and exhalation.
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For a frog, the disadvantage of cutaneous respiration (through the skin) is:
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e. Back to the brain, where the oxygen level is monitored
Chapter 22 Solutions
WHAT IS LIFE? A GUIDE TO BIO W/PHYSIO
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- Which statement is true for the heme group present myoglobin: a. Oxygen binding to heme group is influenced by serine residues within proteins’ sequences. b. Oxygen binding to heme can become irreversible as a result of interaction with certain protein residues. c. Oxygen reversibly binds to the heme prostetic group and this binding is influenced by histidine residues within the myoglobin sequence. d. The heme group dissociates from Mb after oxygen is released.arrow_forwardMyoglobin benefits muscle cells by ... A. binding with O2 just as strongly as hemoglobin does. B. releasing bound O2 at lower PO2 conditions than hemoglobin does. C. increasing the effectiveness of fast glycolytic muscle fibers used in short bursts. D. contributing to the elasticity of flight muscle in birds. E. using hemoglobin as a reserve source of oxygen.arrow_forwardGiven these characteristics:Matrix composed almost entirely of extracellular collagen fibers. It is able to withstand great pulling forces. Which of the tissue is described? A. Adipose. B.Cartilage. C.Bone. D. Dense connective tissue. E.Loose connective tissue 2. According to Frank-Starling law of the heart, A.increased preload causes increased cardiac output. B.increased afterload causes increased cardiac output. C.decreased preload causes increased afterload. D.afterload influences cardiac output more than preload. E.cardiac output is not influenced by preload.arrow_forward
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