Match the substance necessary for clotting with its particular role.A. A mixture of lipoproteins released from injured tissueB. Converts prothrombin to thrombinC. The insoluble protein that forms the network of the clotD. Needed by the liver to produce prothrombinE. Fibrin-stabilizing factorFactor XIII
Fill in the blank(s) with the appropriate word(s).
Answer: E
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Which of the following most accurately describes the renal transport of Na+?
A. Na+ is actively transported in all segments of the tubule. B. Primary active transport of Na+ allows for secondary active transport of glucose and H+ in the proximal tubule. C. Most of the Na+ transport occurs in the distal convoluted tubule and collecting ducts. D. Na+ is actively secreted into the nephron lumen by cells in the cortical collecting ducts. E. Na+ is actively transported across the luminal membrane of proximal tubule cells in exchange for K+, by Na+/K+ ATPase pumps.
Acidosis occurs when the:
a. blood concentration of hydrogen ions drop b. blood pH drops c. concentration of the hydroxide ion increases d. pH of the blood rises
Identify which statement best describes variation in human structure.
a. The common structures learned in anatomy texts are valid for about 50% or less of the human population b. The common structures learned in anatomy texts are valid for about 70% or less of the human population c. All humans have identical internal structures d. Only genetic mutants have variations in their internal structure
Which relatively weak type of bond helps stabilize the three dimensional structure of large molecules like proteins and DNA?
a) nonpolar covalent b) polar covalent c) hydrogen d) ionic e) atomic