BCH4024 070125 OC Su25 E2 Q26: A 6 month-old female presents with hypotonia, developmental delay, and lactic acidosis. Lab tests show elevated levels of citrate and decreased levels of isocitrate. You suspect a problem with the citric acid cycle and think she MOST likely has a deficiency of:
Read DetailsBCH4024 070125 OC Su25 E2 Q34: A patient complains of fatigue and muscle cramps during exercise. A muscle biopsy indicates a deficiency in the enzyme that catalyzes the following reaction: What is the enzyme and why does deficiency of this enzyme lead to muscle cramps?
Read DetailsBCH4024 070125 OC Su25 E2 Q10: Which term below is NOT correctly matched with its description? Term Description a. ABC Transporter: Large superfamily of membrane transport proteins that use the energy of ATP hydrolysis to transfer molecules across membranes. b. Multidrug resistance protein Type of ABC transporter protein that can pump drugs out of the cytoplasm of eukaryotic cells. c. Antiporter Carrier protein that transports two types of solute across the membrane in the same direction. d. Uniporter Carrier protein that transports 1 type of solute across the membrane. e. P-Type ATPase Carrier protein with a N, P, and A domain
Read DetailsBCH4024 070125 OC Su25 E2 Q14: Some aboriginal people use the compound tubocurarine to apply to their poison arrows to paralyze their prey animals. When a prey animal is struck with one of these poison arrows, the acetylcholine receptor is blocked in its closed configuration. Acetylcholine is a neurotransmitter that binds to the acetylcholine receptor. The receptors function as ligand-gated ion channels, mediating rapid response like muscle contraction. What is the mechanism for paralysis by tubocurarine?
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