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Which of the following about glycogen storage is NOT correct? Glycogen storage occurs in the form...
Acetylcholine binds to a GPCR on heart muscle, making the heart beat more slowly. The activated receptor stimulates a G protein, which opens a K channel in the plasma membrane, as shown in the figure below. Which of the following would enhance this effect of the acetylcholine? plasma membrane closed K' channel GTP Pr complex activated α subunit K CHANNEL open K'channel OPENING EXTRACELLULAR SPACE CYTOSOL GTP G-PROTEIN INACTIVATION K" CHANNEL CLOSING closed K' channel rt inactive G protein GOP...
QUESTION 4 Which of the following enzymes directly converts phosphorylaseb into the more active form, phosphorylase a? A. CAMP-dependent protein kinase B. phosphorylase kinase C. protein kinase A D. adenylate kinase E phosphoprotein phosphatase The biotin prosthetic group of pyruvate carboxylase is covalently attached to a residue of the enzyme ? A. Vakine B. serine C. lysine D. arginine E. the biotin is attached non-covalently Which of the following serves as the energy source for the metabolic conversion of oxaloacetate...
1. Which of the folowing statements about glucokinase and hexokinase (that catalyze the same reaction) is TRUE? A. Glucokinase has a higher capacity than hexokinase to convert glucose to glucose 6 phosphate B. Hexokinase is only active in the liver where it can utilize multiple hexoses C. While glucokinase requires ATP for its action, hexokinase requires GTP D. Glucokinase can act on multiple glucose-like sugars (such as galactose) E. Hexokinase has a higher Km and easily handles all the glucose...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow to happen within the myofiber? (5 points) 2. According to the paper, what is the major disadvantage of relying on glycolysis during high-intensity exercise? (5 points) 3. Using Figure 1 in the paper, briefly describe the different sources of ATP production at 50% versus 90% AND explain whether you believe this depiction of ATP production applies to a Type IIX myofiber in a human....