1.Even when the activation energy is lowered, endergonicreactions are not spontaneous. What else can enzymes do that causesendergonic reactions to go forward?
2.It is usually very important for eukaryotic cells to obtainoxygen and remove carbon dioxide. However, no transport proteinsfor these molecules exist in the membrane. Why?
3.How does the glucose cotransporter force glucose to move upits concentration gradient and into the cell?
| through diffusion of glucose |
| through diffusion of sodium ions |
| through hydrolysis of ATP |
| through osmosis |
