Compare and contrast the two types of diabetes mellitus.
What will be an ideal response?
Type I diabetes mellitus is a condition of insulin deficiency due to pancreatic beta cell destruction. Type 2 diabetes
mellitus is insulin-resistant, due to a variety of causes. Figure 22.20 in the chapter provides a detailed summary of
the characteristics of type I diabetes.
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The agonist curare irreversibly binds to the Ach receptor-channels on the motor end plate
a. True b. False Indicate whether the statement is true or false
What is the importance of the delay in the action potential in the AV node?
A. It allows the action potential to reach both ventricles at the same time. B. It allows an action potential to reach the left atrium so both atria contract together, before the ventricles contract. C. It allows time for the atria to fill with blood. D. It allows an action potential to reach the left atrium so both atria contract together.
Which one of the following is NOT true of the constant (C) regions of antibodies?
A) The constant regions are the same or nearly the same on all antibodies of a given class. B) The constant regions form the "stem" of an antibody. C) The constant regions determine the specific type of antibody class formed. D) The constant regions form an antigen-binding site. E) The constant regions determine how an antibody class will carry out its immune role.
During fasting, ketones produced by the liver:
A. are a waste product of amino acid metabolism that the kidneys must excrete. B. can be used by the brain as an energy source. C. are a by-product of anaerobic metabolism. D. are converted to fatty acids and released into the blood. E. are used to synthesize glucose by gluconeogenesis.