2. For the enzyme phosphofructokinase (PFK-1), a highconcentration of AMP in the cell will• downregulate the enzyme by shifting thecurve to the right.downregulate the enzyme by shifting thecurve to the left..●upregulate the enzyme by shifting thecurve to the right.the enzyme by shifting theupregulatecurve to the left.Rate100-80-60-40-20-0-0Left Right-1235[Fructose 6-phosphate) (mm)

Phosphofructokinase I is the second enzyme that participates in glycolysis. It catalyses the…

Answered: 2. For the enzyme phosphofructokinase…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Please ASAP. Thanku Which of the following would have the lowest (most negative) standard reduction potential (E’0)? Glucose O2 NADH FADH2
5. Patients suffering from Familial Hypercholesterolemia (FH) can carry a mutation in one of several genes. Two of these genes are ApoB and PCSK9. a. Diagram the normal cholesterol sensing pathway for a healthy person. This should be focused on the molecules that handle cholesterol and that regulate cholesterol production, NOT on patient symptoms. b. On your diagram indicate where a mutation in Apoß disrupts cholesterol sensing. Then write a paragraph or two explaining how cholesterol sensing is specifically disrupted in patients with an ApoB mutation. c. On your diagram indicate where a mutation in PCSK9 disrupts cholesterol sensing. Then write a paragraph or two explaining how cholesterol sensing is specifically disrupted in patients with PCSK9 mutation.
Homeostatic systems maintain a steady-state set point over time using negative feedback. Which one of the following statement is NOT TRUE for stability of metabolic system: Select one: O a. A positive feedback system is stable over time, maintaining a steady state O b. Metabolic systems that oscillate must have multiple control variables O c. Step changes in a controlled variable will return the system to its original state using negative feedback O d. Perturbations from steady state, either positive or negative, result in recovery reactions that return the system to its original state
18. Considering the shown reaction that occurs in the skeletal muscle, which of the following statements is true? H HO CH₂OH он H H OH A ATP APP CH₂0- H H 06 он H НО OH B H OH H OH A. The only fate of the product B is to undergo glycolysis B. Accumulation of B would inhibit the reaction C. Both A and B D. Neither A nor B
1. The enzyme that catalyzes the transformation of C2H2 + H2 to C2H4 is likely to be classified as2. The enzyme that catalyzes the conversion of glucose + ATP to glucose-6-phosphate + ADP is likely to be classified asa. Isomeraseb. Ligasec. Transferased. Lyasee. Hydrolasef. Oxidoreductase
Phosphofructokinase (PFK) is and enzyme in Glycolysis, and an important control enzyme in the regulation of cellular respiration. Which of the following statements concerning phosphofructokinase is not true? O it is stimulated by citric acid OIt is an example of feedback inhibition o it is an allosteric enzyme O it is inhibited by citric acid O it is stimulated by AMP O it is inhibited by ATP • Previous Next 近
"Time to scrub in," says Dr. Hodges. The appendectomy you are about to observe is your second surgical case in surgical technician school. The patient, David Sims, is an 18- year-old male who was healthy until two days ago when he began having severe abdominal pain, fever, and vomiting resulting in a diagnosis of appendicitis. David is in excellent health and has never had surgery before, so you anticipate the procedure to go smoothly. Your instructor asked the anesthesiologist, Dr. Hodges, if you can observe her today during the procedure. "All of the patient's vital signs and lab work are within normal limits so we are good to go," says Dr. Hodges as David is brought into the operating room. You help get David ready by applying the heart monitor, oxygen saturation monitor, and blood pressure cuff. After David has been sedated, Dr. Hodges places a special tube down his esophagus to measure his core body temperature and another in his trachea (an endotracheal tube) to help him breathe…
18. How much total energy is produced or consumed when Na+and K+ are transported by the Na+-K+-ATPase under the following conditions: Na+outside cell = 100mM, Na+inside = 10mM K out = 5mM, inside = 100mM; the transmembrane electrical difference = -70 mV (negative inside)? Temperature = 27° C. I recommend using scratch paper for working this out, but you must also outline your work (enough to show how you arrived at your answer) here. Be sure to include units where necessary! %3D %3!
y that can do work when orm, as in a living cell [Choose] [Choose] m its surroundings and is delta G. free energy endergonic reaction exergonic reaclion watch this recording. Answer questions afterwards.
8. Features of anaerobic oxidation of glucose in erythrocytes. Pyruvate kinase, its biological significance.
The cotransport of glucose derives energyfroma. a Na+ concentration gradient.b. the glucose being transported.c. a Ca2+ gradient.d. the membrane voltage.e. body heat.
The average cell at rest hydrolyzes 10,000,000 ATP molecules per second.You are studying the stem cell population found in intestinal Crypts.In the intestine there are s total 5x10^11 cell.The stem cells have a 85% higher metabolism than an average resting cell.ATP hydrlysis yield 7.4 kCal/Mole ATP(Avogadro's number is 6.023x10^23) How many moles of ATP are hydrolyzed per second? The answer should be 7.06 x 10^-6 moles/sec I believe, but I don't know how to get to that answer How many Kcal of energy are used per day by this population of cells? The answer for this one should be 4.514 kCal/day. Assuming 32 ATP per glucose oxidative metabolically how many moles of glucose are consumed per day?

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