What does hypertonic mean? * Your answer You are trying to see if a channel transports a specific ion across a cell membrane. How would you test this? Your answer Why aren't ion channels open all the time? * Your answer If a protein uses active transport to drive one molecule into a cell and one molecule out of the cell it is called Symporter Antiporter Uniporter

Rebuild the cell above that is hypertonic to the solution outside.  By hitting the red button, add 20 solutes (green) to the inside of the cell and add 5 water (blue) to the inside of the cell.  Also, add 20 water (blue) to the outside of the cell and 5 solutes (green) to the outside of the cell.  Add blue gated channels to the membrane. Q: What happens to the water molecules in this situation? Q: Which of the above situations is closer to a living membrane system?

What type of membrane protein is shown in the figure below? HIN NH Cysteine-rich domain Protein tyrosine kinase domain COO "Ooc O Receptor protein O Transport protein Structural protein O Channel protein

Which is the definition of 'retrograde' with respect to membrane trafficking?     movement from the endosome to the lysosome     movement from the ER to the Golgi to either the plasma membrane or the endosome/lysosome     movement from the cytoplasm to the nucleus     movement from the Golgi to the ER

What are the differences between sodium-potassium exchange pump and sodium-glucose transporter? Besides I am struggling with understanding the Vesicular Transport (Bulk transport) why it is a form of an active transport? Simple diffusion, facilitated diffusion and osmosis are all passive transport. What are the differences between them and how can be an active form??? And why not concentration gradient is not involving??? Because it utilise transport proteins like receptor mediator endocytosis. It might changes some gradients. Am I misleading some concepts??? Endocytosis and Exocytosis concepts are confusing too. Thanks for reading my question :D I am really confusing of the membrane transport

The experiment described in Figure 11-16 was performed at 37 °C. If the experiment were carried out at 10 °C, what effect would you expect on the rate of diffusion? Why?

I think it works by freezing the bilayer of the membrane and then hitting it sharply with a diamond knife. The sharp hit creates a fracture in the membrane and usually that fracture follows the plane between the two layers of the membrane lipid.