Exam 6: Cell Function

The "lock-and-key model" is used to describe how mRNA and tRNA base pairs align.

Diffusion is a form of filtration that results in the separation of small and large solute particles.

Coenzymes join enzymes to form proenzymes.

Phagocytosis can be translated to "cell eating."

Protein anabolism is a rarely used cellular activity.

Match each term with its description. -Last step in cellular respiration

One of the advantages of active transport is that it can move materials up, or against, its concentration gradient.

Digestive enzymes belong to a group of enzymes called hydrases.

Which of the following is not a passive transport process?

Glycolysis does not require oxygen and is therefore termed anaerobic.

Which is not true about the sodium and potassium pump?

The most important end product in cellular respiration is oxygen.

The vesicles used in exocytosis have broken off from the mitochondria and are pulled to the cell membrane by the cytoskeleton.

Match the name of each enzyme with its function or description. -Digestive enzymes

Diffusion of particles through a membrane by means of a carrier molecule is called:

Which of the following is true of catabolic pathways?

The process of pinocytosis may be viewed as the cell drinking.

A nurse was instructed to dissolve a pill in a small amount of liquid medication. As she dropped the capsule into the liquid, she was interrupted by a telephone call. On her return to the medication cart, she found the medication had completely dissolved and apparently scattered evenly throughout the liquid. This phenomenon did not surprise her; because she was aware from her knowledge of cell transport that _____ had created this distribution. Explain this phenomenon.

Glycolysis produces very little ATP but produces several molecules of NADH and FADH₂.

A 10% solution of NaCl has a higher concentration of water than a 10% solution of glucose.