Author: Anonymous

Bonus question: A 73-year-old woman comes to the physician because of a 2-month history of diffuse weakness and tingling of her arms and legs. Neurologic examination shows weakness of the extensor and flexor muscles of the lower extremities. Knee and ankle deep tendon reflexes are exaggerated. Sensation to vibration and position is decreased in all extremities, but the decrease is more prominent in the lower extremities than in the upper extremities. This patient most likely has a deficiency of which of the following vitamins?

Which of the following statements about phosphofructokinase-1 and phosphofructokinase-2 is TRUE?

Which of the following statements about hemoglobin is TRUE?

A lack of ascorbic acid (vitamin C) will result in reduced stability of _______.

__________ are different forms of an enzyme that catalyze the same reaction in different tissues in the body.

Which of the following prevents protein misfolding?

Which of the following point mutation will most likely disrupt the alpha-helical structure of a protein?

The hydroxl (-OH) group of Serine in chymotrypsin attacking the carbonyl carbon of the substrate is an example of both ____________________.

Pyruvate kinase is inhibited by the presence of __________.

The allosteric enzyme ATCase is regulated by CTP, which converts the ATCase into the T state upon binding. Therefore, CTP is a _______.