Which of the following allows water to move much faster across cell membranes?
A) the sodium-potassium pump
B) ATP
C) peripheral proteins
D) aquaporins
D
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A cell-signaling molecule that is fat-soluble __________
a. must bind to a receptor on the cell membrane before entering the cell b. can pass through the cell membrane of a cell c. is unable to pass through the cell membrane of a cell d. is not as effective as a water-soluble signaling molecule
Four of the five answers listed below are processes associated with light-dependent reactions. Select the exception
a. photolysis b. electron transport phosphorylation c. carbon fixation d. photosystem I and II e. noncyclic pathways of ATP formation
What is the leading cause of age-related blindness in the United States?
a. Macular degeneration b. Glaucoma c. Lack of focus d. Cataract e. Colorblindness
Originating from a source outside of the body
What will be an ideal response?