Which of the following are possible functions of the glycoproteins in the plasma membrane?
a. Determination of blood groups
b. Binding sites for toxins or bacteria
c. Aiding the binding of sperm to egg
d. Increasing the efficiency of absorption

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Which of the following are possible functions of the glycoproteins in the plasma membrane?
a. Determination of blood groups
b. Binding sites for toxins or bacteria
c. Aiding the binding of sperm to egg
d. Increasing the efficiency of absorption
Adult cell types you might expect to have gap junctions include:
a. Skeletal muscle
b. Bone
c. Heart muscle
d. Smooth muscle
A cell stimulated to increase its steroid production will have abundant:
a. Ribosomes
b. Rough ER
c. Smooth ER
d. Golgi apparatus
e. Secretory vesicles
For diffusion to occur, there must be:
a. A selectively permeable membrane
b. Equal amounts of solute
c. A concentration difference
d. Some sort of carrier system
e. All of the above
In which of the following tissue types might you expect to find goblet cells?
a. Simple cuboidal
b. Simple columnar
c. Simple squamous
d. Stratified squamous
e. Transitional
Which of the following would you expect to find in or on cells whose main function is absorption?