During nerve cell signaling, a change in membrane potential will cause sodium channels to open and let Na+ ions diffuse down their concentration gradient into the cell. Which of the following helps establish the concentration gradient necessary for this process to occur?

A type of transport of a solute across a membrane, up its concentration gradient (low to high), using protein carriers driven by the expenditure of chemical energy is known as

Ribosomal RNA (rRNA) is made in the

A distinctive feature of eukaryotes is the organization of DNA into a membrane-bound structure called a:

Enzymes denature when

If putting a cell in a beaker of 5% NaCl is an isotonic condition, then putting the cell in a beaker of

Which structure regulates passage of molecules into and out of the cell?

A bag made from dialysis tubing is filled with a 20% starch solution. Starch is too large to pass through the holes. The dialysis bag is placed in a beaker of distilled water.  What will happen?

46.  A nurse is preparing to administer medroxyprogesterone (Provera) to a client for the treatment of amenorrhea. Which of the following should the nurse include in the client education?  

47.  A 25 year old female patient has been diagnosed with gonorrhea and the provider has ordered a course of amoxicillin 500 mg po TID for 10 days.  Which of the following considerations is the MOST important for a nurse to assess with the patient prior to starting the prescription?