Carbohydrates must be digested into this form so they can be absorbed.

Which chemical converts chymotrypsinogen to chymotryspin?

Which of the following are waste products that are eventually excreted in the kidneys.

Substances, such as Hydrogen ions, can be excreted from the kidneys by tubular secretion.  Which of following shows the correct direction hydrogen ions would travel.

Which of the following specialized structures increases the ability of the jejunum to absorb nutrients?

Which part of the nephron requires antidiuretic hormone to allow reabsorption of water?

During glomerular filtration which of the following should not be filtered?

Low blood pressure will lead to a decrease in the glomerular filtration rate (GFR).  What will the change be in ions passing the macula densa cells?

During the third stage of swallowing what type of movement involuntarily propels food down the esophagus?

Which hormone stimulates reabsorption of sodium in the distal convoluted tubule?