A polymer is made up of several subunits called ________.
Fill in the blank(s) with the appropriate word(s).
monomers
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Opening a Na+ channel in a non-neural sensory receptor cell would cause that cell to
A) generate an action potential. B) decrease neurotransmitter release. C) depolarize. D) hyperpolarize.
In fetal circulation the descending aorta carries the less oxygenated blood from the
_________. A) ligamentum arteriosum. B) foramen ovale. C) ductus arteriosus. D) ductus venosus.
Despite the fact that the partial pressure difference is so much smaller for CO2, why is there as much CO2 exchanged between the alveoli and blood as there is O2, ?
a) CO2 is much more soluble in blood than O2. b) The capillary walls are more permeable to CO2 than O2. c) CO2 is a smaller molecule and diffuses faster than O2.
How many hydrogen molecules are released in glycolysis?
A. One B. Two C. Three D. Four