Exam 4: Membrane Structure and Function

Our body recognizes the foreign nature of a parasite or disease agent and we soon build up antibodies. A few parasites can change their identity to evade our immune system. How could cells do this on a regular basis?

Certain individuals with a Y chromosome develop into females because testosterone is unable to induce the formation of male sexual characteristics. This is most likely due to a defect in

Blood type is determined by proteins. Blood type A has a different protein than blood type B. Blood type AB has both types of proteins and type O does not have either type of protein. When blood is transfused, the recipient's immune system will detect any new or foreign proteins. The blood type proteins must be located

Which is a correct example of tonicity?

If a particular molecule is brought into the cell by receptor-medicated endocytosis, then changing the receptors will change the molecule that is being transported.

If a selectively permeable membrane separates a molasses solution from distilled water, over time the

Permeability refers to

If you have a 10% sugar solution and a 35% sugar solution, the 10% solution is ________ compared to the 35% solution.

Carrier molecules are required for

Osmosis can occur when a membrane is

The pressure that is generated when water flows through a differentially permeable membrane is termed

Which membrane transport process can continue whether the cell is alive or dead?

When you cut into most active plant tissue, water appears almost immediately because plant cells contain

Which of the following molecules add stiffness and strength to the plasma membrane?

What property of phospholipids makes them suitable for the formation of the double layer found in membranes?