Before carbohydrates are absorbed, __________ digest disaccharides into monosaccharides.
a) pancreatic enzymes
b) amylases
c) bile salts
d) brush border enzymes
Answer: d) brush border enzymes
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Increased levels of the hormone ________ will lead to decreased levels of calcium ion in the blood via inhibition of ________
A) thymosin; osteocytes B) calcitonin; osteoclasts C) PTH; osteocytes D) aldosterone; osteoclasts E) cortisol; osteoblasts
During the fetal period, there is an opening between the right and left atrium called the __________ __________.
Fill in the blank(s) with the appropriate word(s).
For convenience, gestation is usually divided into three integrated ________.
Fill in the blank(s) with the appropriate word(s).
Hemoglobin
a. plays a critical role in determining the total amount of O2 that is exchanged because it acts as a storage depot, removing dissolved O2 and thus keeping the PO2 low so that net diffusion is allowed to continue. b. combines only with O2. c. is found in erythrocytes. d. both (a) and (c) above. e. all of these answers.