Exam 6: Cell Function

A hypertonic solution contains _____ concentration of solute _____ the cell.

Explain why the electron transport system is necessary to get all of the usable energy out of the processes of glycolysis and the citric acid cycle.

The enzyme that catalyzes the formation of sucrose is probably specific to that reaction.

Match each term with its description. -Carries the end product of glycolysis to the citric acid cycle

NaCl would move through the cell membrane in which direction?

Match each term with its description. -Converted from pyruvic acid if no oxygen is present

Special membrane channels called aquaporins assist the diffusion of water across the cell membrane.

Describe a hypertonic solution and a hypotonic solution. Explain what would happen to a cell if it were put into each of these solutions.

To maintain homeostasis, the sodium-potassium pump moves equal amounts of sodium and potassium into and out of the cell.

Cellular secretion can be achieved by endocytosis.

Gated channels in the cell membrane can be "opened" by:

All of the following are examples of passive transport except:

The process of end-product inhibition in a metabolic pathway is an example of a positive-feedback loop.

If a cell were placed in a hypertonic solution:

One possible end product of glycolysis is lactate .

An enzyme eliminates the activation energy needed for a reaction to occur.

When molecules pass directly through the cell membrane, the process is called filtration.

A membrane carrier structure attracts a solute to a binding site, changes shape, and releases the solute on the other side of the cell membrane. This describes the process of:

Diffusion is a characteristic of living things and will not occur in a nonliving system.

Match each term with its description. -Compound that carries high energy electrons to the electron transport system