#Question id: 2068
#XL - S Microbiology
Which of the following molecules dramatically increases the rate of diffusion of water across cell membranes?
#Question id: 2069
#XL - S Microbiology
Which of the following processes includes all of the others?
#Question id: 2070
#XL - S Microbiology
The sodium-potassium pump is called an electrogenic pump because it:
#Question id: 2071
#XL - S Microbiology
Diffusion of ions across membranes through specific ion channels is driven by:
#Question id: 2072
#XL - S Microbiology
Which of the following structures would decrease the electrochemical gradient across a membrane?
#Question id: 2073
#XL - S Microbiology
The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membrane—more acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of: