The smaller the diameter of a muscle, the greater its’ strength.

Which of the following would represent an exercise to promote eccentric, closed-chain strengthening of the triceps?

How would one define the Michaelis constant (Km)?

Which of the following statements about hemoglobin is TRUE?

Biochemical reactions in the living cell are organized into metabolic pathways, which of the following is NOT considered one?

Which enzymes are NOT among the seven internationally accepted classes of enzymes?

Which one of the following statements about protein structure is True?

An allosteric interaction between a ligand and a protein is one in which _______.

What type of covalent bond holds the two constant heavy chains of an antibody together?

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?