Describe the Cori cycle in three steps.
What will be an ideal response?
Step 1: Working muscles break down most of their glucose molecules to pyruvate, releasing energy (ATP).
Step 2: If the cells lack sufficient mitochondria or in the absence of sufficient oxygen, pyruvate can accept the hydrogens from glucose breakdown and become lactate. This conversion frees the coenzymes so that glycolysis can continue.
Step 3: Lactate travels to the liver where it can be converted to glucose, although this reaction requires energy. The glucose is then returned to the muscles.
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Consuming even moderately excessive doses of vitamin C supplements would be MOST
harmful to individuals suffering from A) scurvy. B) Keshan disease. C) diabetes mellitus. D) hemochromatosis.
Women should enter pregnancy with a good level of stored iron because it is easier to build up iron stores before than during pregnancy
a. true b. false
A five month old baby has changed from the 65th to the 95th percentile weight for height. The Dietitian should first:
a. suggest the mother introduce more solid foods b. change the feeding formula c. check to see if weights have been plotted properly d. increase the amount of formula given
What is a ribosome??
A) ?a template for protein synthesis B) ?a hard knot of subcutaneous protein mass C) ?a structure upon which proteins are assembled D) ?an antibody synthesized by specialized immune cells