Problem 12
A transport protein requires ATP to pump sodium ions across a membrane. This is a case of ____________. a. passive transport c. facilitated diffusion b. active transport d. a and \(c\)
Problem 13
Immerse a human blood cell in a hypotonic solution, and water _________. a. diffuses into the cell c. shows no net movement b. diffuses out of the cell d. moves in by endocytosis
Problem 14
Vesicles form during _________. a. endocytosis c. phagocytosis b. exocytosis d. a and \(c\)
Problem 15
Match each term with its most suitable description. __reactant __phagocytosis __first law of thermodynamics __product __cofactor __concentration gradient __passive transport __active transport a. assists enzymes b. forms at reaction's end c. enters a reaction d. requires energy input e. one cell engulfs another f. energy cannot be created or destroyed \(\mathrm{g}\). basis of diffusion h. no energy input required
