Large protein anions do not leave the cell because there is no concentration or electrical gradient to drive it outward
Indicate whether the statement is true or false
F
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Who discovered that the brain had both white and gray matter and that fiber connect the two halves of the brain?
A. Spurzheim B. Hall C. Broca D. Gall E. Flourens
At the peak of an action potential,
a. the electrical gradient for K+ tends to move this ion outward. b. the concentration gradient for K+ tends to move this ion outward. c. K+ permeability greatly increases. d. two of these answers. e. all of these answers.
Peeper frogs freeze during the winter. As they begin to freeze, their livers break down glycogen and release glucose into the blood, which can then be taken up into cells. This provides a benefit to the frog in that
a. plasma glucose acts as a cryoprotectant by lowering the freezing point of the extracellular fluid. b. cellular glucose acts as a cryoprotectant by lowering the freezing point of the intracellular fluid. c. cellular glucose is readily available for glycolysis once the frog thaws. d. all of these. e. none of these.
a base _______________ is a consecutive sequence of three DNA nucleotides that codes for one amino acid.
Fill in the blank(s) with the appropriate word(s).