Glycogen is the main storage form of glucose in animals. Why is glucose necessary as opposed to simply keeping a high concentration of intracellular glucose ready for when the cell needs energy? O Free glucose is cytotoxic O Glycogen has the highest energy capacity of any organic compound O To maintain osmotic balance O Glucose precipitates out of solution in cellular conditions O None of the above Question 26 Suppose you incubated a sample of glycogen with debranching enzyme, transferase, orthophosphate and glycogen phosphorylase. What would be the approximate ratios of G1P to Glucose (G1P/Glucose)? O Not enough information O 10 O 100 04 25

Glycogen is the main storage form of glucose in animals. Why is glucose necessary as opposed to simply keeping a high concentration of intracellular glucose ready for when the cell needs energy? O Free glucose is cytotoxic O Glycogen has the highest energy capacity of any organic compound O To maintain osmotic balance O Glucose precipitates out of solution in cellular conditions O None of the above Question 26 Suppose you incubated a sample of glycogen with debranching enzyme, transferase, orthophosphate and glycogen phosphorylase. What would be the approximate ratios of G1P to Glucose (G1P/Glucose)? O Not enough information O 10 O 100 04 25

Ebk:Nutrition & Diet Therapy

10th Edition

ISBN:9780357391747

Author:DEBRUYNE

Publisher:DEBRUYNE

Chapter16: Specialized Nutrition Support: Enteral And Parenteral Nutrition

Section: Chapter Questions

Problem 2CA

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A 70-kg adult human (154 lb) could meet his orher entire energy needs for one day by eating 3 moles ofglucose (540 g). (We do not recommend this.) Each mol-ecule of glucose generates 30 molecules of ATP when it isoxidized to CO2. The concentration of ATP is maintained incells at about 2 mM, and a 70-kg adult has about 25 litersof intracellular fluid. Given that the ATP concentrationremains constant in cells, calculate how many times perday, on average, each ATP molecule in the body is hydro-lyzed and resynthesized.
Cholesterol is an integral part of plasma membranes. Based on its structure, where is it found in the membrane? O within the tail bilayer O on the extracellular surface O embedded with the phospholipid heads O attached to the intracellular surface
Which is NOT true of plasma-membrane-bound carbohydrates? O They are found on the noncytosolic outer face of the plasma membrane. O They protect the plasma membrane from harsh conditions. O They prevent cell-cell adhesion. O They make up the glycocalyx or cell coat. O They are added to proteins within the lumen of ER or Golgi.
Dixie Bee wanted to make JELL-O shots for her next party, but felt guilty about encouraging her guests to consume alcohol. She tried to compensate for the toxicity of the alcohol by adding pieces of healthy fresh pineapple to the shots, but when she did, the JELL-O never solidified. What happened? Hint: JELL-O is mainly sugar and a gelatinous mixture of proteins.
The thyroid gland metabolizes iodine, the most common formof which has a molecular weight of 127 (iodine-127). A physi-cian wants to use a radioactive isotope of iodine (iodine-131)to test whether a patient’s thyroid gland is metabolizing nor-mally. Based on what you know about how atoms react, doyou think this physician’s plan makes sense?
Both H+ and Ca2+ are ions that move through thecytosol. Why is the movement of H+ ions so much fasterthan that of Ca2+ ions? How do you suppose the speed ofthese two ions would be affected by freezing the solution?Would you expect them to move faster or slower? Explainyour answer.
It is often stated that the phosphate-phosphate bonds in ATP are "high energy," but in fact, they are not notably high in energy. Rather, they are easy to break, and the AG of hydrolysis is a "useful" quantity of energy. What makes the phosphate bonds easy to break? O They are close to the destabilizing nitrogenous base adenosine. O High alkalinity attacks bonds between phosphate groups. O Electrostatic repulsion of phosphate groups. Positive charges on amino groups repel each other. O High acidity attacks bonds between amino acids.
Synthesis of a triglyceride from three fatty acids and glycerol costs how many ATP equivalents? 1three 2four 3five 4six 5seven
How many ATP molecules can we expect to generate from Vaccenic acid, a A11 (18:1) monounsaturated fatty acid? 120 O 122 O 122.5 O 107 118.5 O 109
Which of the following solutions is isotonic relative to a solution of 1.0 M glucose? 1.0 M glucose + 1.0 M fructose O 0.5 M Na+ + 0.5 M CI- O2.0 M glycerol
Which of the following processes would be directly affected by the presence of a non-hydrolyzable form of ATP ? the depolymerization of tubulin monomers O the depolymerization of actin monomers the polymerization of tubulin monomers the polymerization of actin monomers
Which of the following is not the function of Glycosylation? Synthesis of membrane lipid O Helps in proper folding of the protein O Confer stability in proteins Helps in cell-cell adhesion