Question

Choose the item in column 2 that best matches each item in column 1. You may use a column 2 item more than once. A requires direct ATP hydrolysis CO2, O2, H20 driven by an ion gradient - A active transport and indirect active transport transports glucose across membranes Bindirect active transport B. Na glucose symport facilitated diffusion (passive transport) Na */ ATPase pump D, active transport F. transports small, nonpolar molecules facilitated diffusion and active transport A F. simple diffusion transports ions up concentration gradients transports water across membranes Gnone of the listed processes • H. direction of transport depends on the concentration gradient Simple diffusion and facilitated diffusion requires ligand binding and therefore km for transport can be calculated

Answer 1

1)Direct ATP hydrolysis-Active transport

2)CO2 ,H2O and O2- simple diffusion

3)driven by ion gradient-Indirect active transport

4)Transport glucose across the membrane-facilitated transport and active transport

5)Na+/glucose symport- indirect active transport.

6)Na+/K+ ATPase pump - direct transport

7) Transport small non polar molecule-Simple diffusion

8) Transport ion up the concentration gradient-Active transport and Indirect Active transport

9)Transport water across the membrane- simple and facilitated diffusion

10)Direction of movement depend on concentration gradient-Simple and facilitated diffusion

11)Require ligand bindng and therefore km value can be calculate- Facilitated diffusion