The hormone insulin is a composed of repeating units of amino acids and cannot be administered orally because the enzymes of the gastrointestinal tract will break the peptide bond through the process of hydrolysis, releasing individual amino acids.
a. nucleic acid
b. glycogen
c. protein
d. steroid
c. protein
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The lymphatic system plays a role in maintaining fluid balance within the body by
A. adding lymph to GI tract secretions. B. returning interstitial fluid to the plasma. C. transporting lymph from tissues to the liver. D. carrying excess fluid to the kidneys to be excreted. E. actively absorbing fluid from the blood.
What process in meiosis involves random alignment of chromosomes?
A. Crossing over B. Mitosis C. Independent assortment D. Meiosis II
Where is the series elastic component (SEC) of a muscle found?
A. tendons B. ligaments C. muscle membrane D. all of the above
The major organs of the cardiovascular and respiratory systems, the heart and lungs, reside in the ________ cavity
A) thoracic B) cranial C) spinal D) abdominopelvic