The green pigment resulting from the breakdown of hemoglobin is converted into a yellow substance called _____ which is secreted by the liver as a digestive juice called bile.
A) biliverdin
B) transferrin
C) bilirubin
D) erythopoietin
Answer: C) bilirubin
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Calcium that enters the cell during smooth muscle excitation binds with
a. calmodulin b. inactive myosin kinase c. troponin d. myosin e. actin
Name the sutures that mark the boundaries of each parietal bone
A) coronal and squamous sutures B) coronal and sagittal sutures C) squamous, sagittal, and lambdoid sutures D) squamous, coronal, and lambdoid sutures E) squamous, coronal, and sagittal sutures
Secretin and cholecystokinin are hormones produced in the
A) stomach B) gallbladder C) liver D) duodenum
Which of these is a function of intrinsic factor?
A. It is secreted by salivary glands, and is necessary for digestion of vitamin B12. B. It is secreted by parietal cells in the gastric mucosa, and its main function is causing insulin release. C. It is secreted in the stomach, and its main function is activating pepsinogen into pepsin. D. It is secreted by the small intestine mucosa, and its main function is initiating the intrinsic electrical activity of the pacemaker cells in the stomach. E. It is secreted in the stomach, and a deficiency of it would cause anemia.