Which of the following statements is false?

a. The plasma membrane is more like a fluid than a
solid.
b. The cell membrane is symmetrical, so it is
impossible to identify which is the extracellular
surface.
c. Calcium pumps move calcium ions across the
membrane.
d. In a plasma membrane, proteins shift positions
and phospholipids flex their tails.
e. There are functional differences between the two
sides of the plasma membranes.


Answer: b

Biology & Microbiology

You might also like to view...

Erythema migrans is associated with typhus

Indicate whether the statement is true or false.

Biology & Microbiology

List the four types of gymnosperms. What characteristics do they have in common? What sets each group apart?

What will be an ideal response?

Biology & Microbiology

The nonsulfur photosynthetic bacteria use organic compounds as

A) carbon sources. B) electron donors to reduce CO2. C) energy sources. D) electron acceptors. E) oxygen sources.

Biology & Microbiology

Which of the following disorders is caused by a defect in the production of an elastic connective tissue protein called fibrillin?

A. sickle-cell disease B. Huntington disease C. Tay-Sachs disease D. cystic fibrosis E. Marfan syndrome

Biology & Microbiology