Homework Answers
11. C LDL
LDL has the highest percentage of cholesterol plus cholesteryl ester
12. b
13. e
cellular rate of glycolysis, oxidation of phosphorylation, pyruvate oxidation, citric acid cycle.
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Which of the following contains the highest percentage of cholesteryl esters? Chylomicrons VLDL LDL HDL None...
Which of the following types of lipoprotein contains the highest percentage of protein? 1) VLDL 2) HDL 3) LDL O 4...
Which of the following types of lipoprotein contains the highest percentage of protein? 1) VLDL 2) HDL 3) LDL O 4) chylomicron 100% Question 5 (1 point) Triglycerides contain a glycerol backbone attached to four fatty acids. 1) True 2) False Question 6 (1 point) Which lipoprotein has the highest cholesterol content? 1) HDL 2 2) chylomicron 3) VLDL 100% search 1) HDL 2) chylomicron 3) VLDL 4) LDL Question 7 (1 point) High blood cholesterol levels can partly be...
7. In bacteria the elongation stage of protein synthesis does not involve: A) aminoacyl-tRNAS B) EF-Tu...
7. In bacteria the elongation stage of protein synthesis does not involve: A) aminoacyl-tRNAS B) EF-Tu C) GTP D) IF-2 E) peptidyl transferase Which of the following best describes the cholesterol molecule? A) Amphipathic B) Nonpolar, charged C) Nonpolar, uncharged D) Polar, charged E) Polar, uncharged The enzyme that attaches an amino acid to a tRNA (aminoacyl-tRNA synthetase): A) always recognizes only one specific tRNA. B) attaches a specific amino acid to any available tRNA species. C) attaches the amino...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct order? A. glycolysis, oxidative phosphorylation, pyruvate oxidation, and the citric acid cycle B glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation C. pyruvate oxidation, oxidative phosphorylation, glycolysis, and the citric acid cycle D. the citric acid cycle, oxidative phosphorylation, pyruvate oxidation, and glycolysis QUESTION 2 When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the glucose...
QUESTION 1 Which of the following processes/pathways CANNOT occur in the absence of O2? Oxidative phosphorylation...
QUESTION 1 Which of the following processes/pathways CANNOT occur in the absence of O2? Oxidative phosphorylation Substrate level phosphorylation Oxidation of NADH Photosynthesis Fermentation 1 points QUESTION 2 Phosphofructokinase (PFK-1) is one of the most regulated enzymes in metabolism. Which of the following would be expected to be an allosteric inhibitor of PFK-1? Glucose Fructose-6-phosphate Acetyl CoA AMP 1 points QUESTION 3 Which of the following is a reactant of the first reaction of glycolysis? Glucose ADP ATP...
Which of the following molecules has the highest amount of energy that will be collected during...
Which of the following molecules has the highest amount of energy that will be collected during its further metabolism in cellular respiration? C6H1206 pyruvate O CO2 02 ATP When glucose and oxygen become carbon dioxide plus water (cell respiration reaction) which of the following is true: The reaction is... positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta G and glucose is reduced negative delta G and glucose is reduced The majority of...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
28. Which one of the following statements is true? a) The brain b) Muscle cannot use...
28. Which one of the following statements is true? a) The brain b) Muscle cannot use fatty acids as an energy source. c) The brain exports ketone bodies as fuels for other tissues d) Fatty acids cannot be used as an energy source in humans e) as an energy source, but can use ketone bodies enzymes of the Glyoxylate cycle Heart muscle stores fuel as glycogen. 29. An intermediate found in gluconeogenesis and not in glycolysoxaloacetate a) 2-phosphoglycerate b) phosphoenolpyruvate...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
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....
Which of the following types of lipoprotein contains the highest percentage of protein? 1) VLDL 2) HDL 3) LDL O 4) chylomicron 100% Question 5 (1 point) Triglycerides contain a glycerol backbone attached to four fatty acids. 1) True 2) False Question 6 (1 point) Which lipoprotein has the highest cholesterol content? 1) HDL 2 2) chylomicron 3) VLDL 100% search 1) HDL 2) chylomicron 3) VLDL 4) LDL Question 7 (1 point) High blood cholesterol levels can partly be...
7. In bacteria the elongation stage of protein synthesis does not involve: A) aminoacyl-tRNAS B) EF-Tu C) GTP D) IF-2 E) peptidyl transferase Which of the following best describes the cholesterol molecule? A) Amphipathic B) Nonpolar, charged C) Nonpolar, uncharged D) Polar, charged E) Polar, uncharged The enzyme that attaches an amino acid to a tRNA (aminoacyl-tRNA synthetase): A) always recognizes only one specific tRNA. B) attaches a specific amino acid to any available tRNA species. C) attaches the amino...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct order? A. glycolysis, oxidative phosphorylation, pyruvate oxidation, and the citric acid cycle B glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation C. pyruvate oxidation, oxidative phosphorylation, glycolysis, and the citric acid cycle D. the citric acid cycle, oxidative phosphorylation, pyruvate oxidation, and glycolysis QUESTION 2 When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the glucose...
Which of the following molecules has the highest amount of energy that will be collected during its further metabolism in cellular respiration? C6H1206 pyruvate O CO2 02 ATP When glucose and oxygen become carbon dioxide plus water (cell respiration reaction) which of the following is true: The reaction is... positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta G and glucose is reduced negative delta G and glucose is reduced The majority of...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
28. Which one of the following statements is true? a) The brain b) Muscle cannot use fatty acids as an energy source. c) The brain exports ketone bodies as fuels for other tissues d) Fatty acids cannot be used as an energy source in humans e) as an energy source, but can use ketone bodies enzymes of the Glyoxylate cycle Heart muscle stores fuel as glycogen. 29. An intermediate found in gluconeogenesis and not in glycolysoxaloacetate a) 2-phosphoglycerate b) phosphoenolpyruvate...
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....
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