After passage through the nephron loop, the filtrate is __________.
extremely alkaline
more concentrated
unchanged
less concentrated
more concentrated
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Pancreatic juice is secreted by the exocrine pancreatic acini.
Answer the following statement true (T) or false (F)
A beta sheet is an example of a secondary structure of a protein.
Indicate whether this statement is true or false.
Where are intercalated cells found and what do they do?
A. Distal convoluted tubules; reabsorption of sodium B. Collecting duct; reabsorption of sodium C. Distal convoluted tubule; secretion of hydrogen or bicarbonate ions D. Collecting duct; secretion of hydrogen or bicarbonate ions E. Nephron loop; reabsorption of sodium
During implantation, the
A) trophoblast erodes a path through the endometrium. B) inner cell mass begins to form the placenta. C) maternal blood vessels in the endometrium are walled off from the blastocyst. D) entire trophoblast becomes syncytial. E) inner cell mass is temporarily deprived of nutrients.