Contraction of __________ cells closes off a portion of the filtering capillaries, reducing the surface area available for filtration within the glomerular tuft
Fill in the blank(s) with correct word
mesangial
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DNA is organized into discrete units called ________ that provide information for the production of specific proteins.
Fill in the blank(s) with the appropriate word(s).
During the Cori cycle, in the liver
A) lactic acid is produced from glucose B) lactic acid is produced from pyruvic acid C) lactic acid is shuffled to muscle cells D) glucose is produced from lactic acid E) glucose is released from glycogen
Parathyroid hormone increases the activity of ________ in bone and increases the rate of Ca2+ ________ in the kidney tubules.
A. osteocyte; reabsorption B. osteoblast; secretion C. osteoclast; reabsorption D. osteoblast; reabsorption E. osteocyte; secretion
The smallest structural unit that exhibits the characteristics of living things is
A. an organ. B. an individual. C. a system. D. a cell. E. tissue.