What are the three main groups of lipids that comprise lipid membranes?

Which of the following membrane transport proteins do NOT undergo cycles of conformational change with the passage of each solute?

Place the following three membranes with phosphatidyl cholines in order from highest transition temperature to lowest.  The transition temperature is the temperature where the membrane changes from a buttery gel to a fluid.  The selections are below with a letter for each.  A) phosphatidylcholines with saturated 16 carbon fatty acids B) phosphatidylcholines with unsaturated 16 carbon fatty acids C) phosphatidylcholines with saturated 14 carbon fatty acids

The transporter that uses the K+ gradient to remove Cl– from the cell is a type of:

When there are more positive charges in the cytosol compared to the extracellular solution, the membrane potential is negative.

Which of the following organelles is an example of a biomolecular condensate?

Na+ and K+ do NOT pass each other as they move through the pump.

Which of the following techniques is NOT able to achieve atomic level resolution?

The gel to fluid transition temperature (Tm) in a normal membrane is 28 degrees C. An organism has a mutation that causes 2 unsaturated fatty acids in the phospholipids instead of 1. How would the gel to fluid transition temperature of this organism be affected?

Most of the cells in our body are about ______  in diameter.