Which of the following statements is correct?O The brain prefers glucose as an energy source, but can use ketone bodiesO Muscle cannot use fatty acids as an energy sourceO In a well-fed human, approximately equal amounts of energy are stored as glycogen and astriacylglycerolO Fatty acids cannot be used as an energy source in humans because humans lack the enzymesof the glyoxylate cycleAmino acids are a preferable energy source over fatty acidsSearchSi

Biomolecules are the building blocks of life. They are organic molecules that are essential for the…

Answered: Which of the following statements is…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter27: Metabolic Integration And Organ Specialization

Section: Chapter Questions

Problem 19P

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Similar questions

When your muscles suddenly need a lot of ATP quickly; for example, if you decide to lift a couch over your head; what nutrient will provide most of the ATP for the first couple of minutes? O glucose carnitine O fatty acids O acetyl coA O vitamin B6
Muscle glycogen provides glucose to all local muscle fibers O can be mobilized to provide glucose to the bloodstream stores are similar in size to liver glycogen stores O provides glucose only to the cells that store it
Glucose 6 phosphatase allows muscle to release free glucose into the bloodstream O is expressed in both liver and muscle and is important in mobilizing glucose released from glycogen O is an enzyme of glycolysis O allows the liver to release free glucose into the bloodstream
Ammonium ions (NH4+) are always produced during intracellular digestion of which food molecule? carbohydrate fatty acid glycerol amino acid polysaccharide The glycolytic enzyme pyruvate kinase catalyzes the conversion of: 1,3-bisphosphoglycerate into 3-phosphoglycerate (producing ATP) glyceraldehyde-3-phosphate into 1,3-bisphosphoglycerate (producing NADH) phosphoenolpyruvate into pyruvate (producing ATP) fructose-6-phosphate into fructose-1,6-bisphosphate (consuming ATP) glucose into glucose-6-phosphate (consuming ATP)
If you are in an extreme starvation mode, you should avoid carbohydrates as your energy glucose, lipids and proteins will build up fat fatty acids are converted to ketone transamination will directly provide ATP
Which statement is NOT completely true? O During starvation, ketogenesis creates ketone bodies we use as carbohydrate substitutes O HDL's are good lipoproteins which help regulate LDL and excrete cholesterol. O Fatty acids are converted to triglycerides and stored in the fat cells O Chylomicrons are created from HDL's to excrete excess lipids from body O LDL has more lipid than protein that make up the structure of the lipoprotein
Which of the following fatty acid is not synthesized in human bodies but has to be supplied to the body ? * Palmitic acid Stearic acid Arachidonic acid O None of them
Glycogen is not as reduced as fatty acids are and consequently are not as energy rich. Why isn’t all excess fuel stored as fatty acids rather than as glycogen?
which of the following is not true for a muscle that is forced to metabolize glucose anaerobically ? - The cells breakdown glucose faster - The cells produce less ATP per mole of glucose - The cells metabolize glucose to lactate - The activity of the cytosolic gycerol-3-phosphate dehydrogenase will be required for the muscle to sustain glycolysis - The muscle quickly experiences fatigue if it is deficient in the enzyme lactate dehydrogenase
Which of the following substances derived from lipid catabolism serves as a precursor for glucose synthesis: acetoacetyl CoA acetone palmitate acetate O glycerol
Which of the following statements regarding ketone body formation is not true? O the two other ketone bodies are derived from acetoacetate O ketone bodies are formed in the liver and circulated to other tissues in the body O ketone bodies are essentially soluble forms of fatty acids that can be used for energy O ketone bodies are not the preferred energy source for any type of tissue in the human body
Fructose and glucose are both monosaccharides, but the body metabolizesthese sugars differently. For example, glucose stimulates insulin releasefrom the pancreas (see section 28.4); fructose does not. Moreover, insulinstimulates leptin release. Finally, fructose is more likely than glucose tobe converted to fat. Use this information to propose an explanation for thecorrelation between the skyrocketing consumption of high fructose cornsyrup since 1970 and the rise in obesity during the same period.

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