A substance that produces an allergic reaction is a/an __________
Fill in the blank(s) with correct word
allergen
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In smooth muscle, Ca2+ binds with the protein ____________________, which is structurally similar to troponin
Fill in the blank(s) with correct word
Some cells contain large numbers of mitochondria while others have relatively few or none. This suggests that
A) cells with large numbers of mitochondria are short-lived. B) cells with large numbers of mitochondria have a high energy demand. C) cells with small numbers of mitochondria have a large ATP supply. D) cells with large numbers of mitochondria have a low energy demand. E) some cells are older than others.
A man was found trapped in a car that had been left running. He was still breathing but had turned blue. A blood test will most likely reveal an abundance of which gas bound to his heme molecules?
A) carbon dioxide B) oxygen C) carbon monoxide D) nitrogen
Facultative water loss is loss that
A. is controlled by hormone effects on the kidney. B. occurs regardless of the state of hydration of the body. C. occurs through sweating and breathing.