Exam 3: Cellular Form and Function

synthesize(s) carbohydrates and put(s) finishing touches on proteins synthesized at .

is the process in which forces water and small solutes such as salts through narrow clefts between capillary cells.

What organelle is most active in causing programmed cell death?

In the plasma membrane, glycolipids and glycoproteins face toward the cytoplasm, while peripheral proteins always face toward the ECF.

The Na+-K+ pump has the following functions except

provide motility to a cell, act as sensory "antenna" in many cells, and increase a cell's surface area.

Most human cells range from 10 to 15 micrometers in diameter.What limits how large a cell can be?

Ligand-gated channels are membrane proteins that open or close in response to the binding of a chemical.

A receptor protein in the plasma membrane will not bind to just any chemical in the extracellular fluid, but only to certain ones.That is to say, the receptor exhibits

All of the generalizations below constitute the modern cell theory except

A cell's second messengers serve to transport material through the plasma membrane.

Sodium and glucose are transported together from the intestinal lumen into an intestinal cell.The carrier protein is a(n) and the process is called .

describes the number of particles of a solute in a solution, whereas is the ability of a solution to affect the fluid volume in a cell.

Cells lining the small intestine are specialized for absorption of nutrients.Their plasma membrane has

Water flows through a selectively permeable membrane in a process called , but water molecules cross the membrane more easily through channels of transmembrane proteins called )

The Golgi complex makes peroxisomes but not lysosomes.

The fluid outside of a cell is called

This figure shows the structure of a representative cell.What does "C" represent?

This figure shows the plasma membrane.What does "D" represent?

This figure shows the structure of a representative cell.What does "A" represent?