Thyroid hormone (a small iodinated amine) enters target cells in a manner similar to ________.
A) insulin, because insulin is a small peptide
B) steroid hormones, because both diffuse easily into target cells
C) growth hormone, because the thyroid works synergistically with thyroid hormone
D) glucagon, because the structure of glucagon is similar to that of thyroid hormone
B) steroid hormones, because both diffuse easily into target cells
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What is/are the major role(s) of the phospholipid bilayer?
A) the formation of a barrier that is selectively permeable to lipid-soluble molecules and to provide a framework for membrane proteins B) the absorption of fats only C) to carry water-soluble molecules through a hydrophobic environment only D) to provide a framework for membrane proteins only E) the formation of a barrier that is selectively permeable to lipid-soluble molecules only
Sodium reabsorption in the proximal tubule plays a pivotal role in reabsorbing glucose, amino acids, H2O, chloride ions and urea
a. True b. False Indicate whether the statement is true or false
Axons terminate in a series of fine extensions known as
A) telodendria. B) terminals. C) collaterals. D) dendrites. E) synapses.
How are vertebrosternal ribs distinguished from vertebrochondral ribs?
A) Vertebrosternal ribs connect to the sternum by shared costal cartilages, whereas vertebrochondral ribs do not connect to the sternum. B) Vertebrosternal ribs do not connect to the sternum, whereas vertebrochondral ribs connect to the sternum by shared costal cartilages. C) Vertebrosternal ribs are connected to the sternum by individual costal cartilages, whereas vertebrochondral ribs are connected to the sternum by shared costal cartilages. D) Vertebrosternal ribs are connected to the sternum by shared costal cartilages, whereas vertebrochondral ribs are connected to the sternum by individual costal cartilages. E) Vertebrosternal ribs are connected to the sternum at the manubrium, whereas vertebrochondral ribs are connected to the sternum at the body.