Diffusion of a substance across the cell membrane may be influenced by all of the following except
A) the availability of ATP.
B) the presence of membrane channels for the substance.
C) its charge of the substance.
D) its concentration gradient.
E) its lipid solubility.
A
You might also like to view...
When the basilar membrane moves, what happens to the hair cells of the spiral organ?
A) They press against the spiral ganglion. B) They press against the basilar membrane. C) They press against the tectorial membrane. D) They press against the vestibular membrane. E) They push down into the ampulla.
Several pharynx muscles are innervated by Cranial Nerve X, the vagus nerve.
Answer the following statement true (T) or false (F)
The ______________ of the pathogenic bacterium was due to its ability to produce enzymes
Fill in the blank(s) with correct word
If it were not for the __________, osteocytes in the outer lamellae of an osteon would not be able to transport their wastes to the bloodstream for removal.
A. matrix B. nutrient canals C. canaliculi D. trabeculae E. ruffled border