7. What happens during the hydrolysis of maltose? a. water is removed from maltose b. water is added to maltose c. carbon dioxide is removed form maltose d. oxygen is added to maltose 8. What is glucose? a. a monosaccharide b. a disaccharide 9. What disaccharide is formed from a ß, 1->4 glycosidic linkage between galactose and glucose? a. sucrose b. glycogen c. a polysaccharide d. a protein a. amylose b. chitin 10. Which of the following polysaccharides is used for energy storage in animals? c. lactose d. maltose c. phosphattidyl ethanolamine d. all of the above c. glycogen d. cellulose 11. Which of the following lipids is a polyunsaturated fatty acid? a. butyric acid b. linoleic acid c. oleic acid d. stearic acid 12. Which of the following substances is derived from fatty acids? a. triglycerides b. beeswax

7. What happens during the hydrolysis of maltose? a. water is removed from maltose b. water is added to maltose c. carbon dioxide is removed form maltose d. oxygen is added to maltose 8. What is glucose? a. a monosaccharide b. a disaccharide 9. What disaccharide is formed from a ß, 1->4 glycosidic linkage between galactose and glucose? a. sucrose b. glycogen c. a polysaccharide d. a protein a. amylose b. chitin 10. Which of the following polysaccharides is used for energy storage in animals? c. lactose d. maltose c. phosphattidyl ethanolamine d. all of the above c. glycogen d. cellulose 11. Which of the following lipids is a polyunsaturated fatty acid? a. butyric acid b. linoleic acid c. oleic acid d. stearic acid 12. Which of the following substances is derived from fatty acids? a. triglycerides b. beeswax

Ebk:Nutrition & Diet Therapy

10th Edition

ISBN:9780357391747

Author:DEBRUYNE

Publisher:DEBRUYNE

Chapter4: Lipids

Section: Chapter Questions

Problem 4SC

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8. The brick red color formed in a positive result of Benedict's test comes from A. the oxidation of copper ions B. the reduction of copper ion C. the reduction of carbonyl group D. the oxidation of carboxyl group E. the breakdown of glycosidic linkage 9. The following molecule is a но H Н-С—N — С H H H H-N-C -C-0-P-0-C -H H H H H A. triacylglycerol B. steroid hormone C. phospholipid D. o-6 fatty acid E. cholesterol 10. Which of the following statements about nucleic acid is INCORRECT? A. Coenzyme A is a protein, not nucleic acid B. NAD is an example of nucleic acid C. Adenine base is the same in ribonucleotide and deoxyribonucleotide D. Helix is an example of the secondary structure of nucleic acid E. Hydrogen bond can be found in DNA 11. The nucleoside consists of a D-deoxyribose and a cytosine base is called A. cytidine B. deoxycytidine C. deoxycytidylate D. deoxyribosylcytosine E. deoxyribosylcytidine
3. Which statement is true regarding this disaccharide? A. It's the a-anomer. B. The linkage is ß-1,4 C. It should dissolve in water fairly easily. D. Two identical monosaccharide units were connected together. E. All statements A-D are true. CH₂OH CH- CH OH SH OH CH-CH ÓH CH CH₂OH CH-O -CH OH CH-CH OH OH
3. What classification of monosaccharide is shown here? CH A. D-aldohexose B. D-ketohexose но H- C. D-ketopentose D. D-aldopentose -HO- E. L-aldohexose F. L-ketohexose HO H- G. L-aldopentose H. L-ketopentose HO. ČH2OH
4. Which among the given peptides will form hydrogen bond with another similar peptide chain? i. ASTGHASTGH ii. GASTHASTCH A. i B. ii C. i & ii
Differentiate the glycosidic linkages 1. Between glucose and fructose in sucrose 2. Glucose units in amylose, amylopectin, glycogen, and starch. 3. Between starch and cellulose
3. Name the following oxidation/reduction product for the given monosaccharide. (2 pts each) COOH Сно H- OH но H- но -- но -- -OH H- -OH OH ČH2OH COOH а. b. COOH CHO H- -O- но -H но -H но но -H но -H H- -OH H -HO- COOH COOH C. d. COOH CH2OH H- -O- -OH -O- но H- Но -H -OH -OH H OH ČOOH ČH2OH е. f.
3. Disaccharides a. Draw a lactose molecule b. Label the individual monosaccharide components c. Label the functional groups that you recognize d. Label the chemical bond that connects the monosaccharides
8) Consider the tetrasaccharide stachyose drawn below. Stachyose is found in white jasmine, soybeans, and lentils. Because humans cannot digest it, its consumption causes flatulence. HO How ОН OH stachyose OH HO HO OH HO OH OH OH OH «ОН a. Label all glycoside bonds. b. Classify each glycosidic linkage as a or ẞ and use numbers to designate its location between two rings (e.g., 1-4-3). c. What products are formed when stachyose is hydrolyzed with H,O"? d. Is stachyose a reducing sugar? e. What product is formed when stachyose is treated with excess CHI, Ag₂O? f. What products are formed when the product in (e) is treated with H₂O"?
24. Which polysaccharide is cleaved by beta glucosidases?A. AmyloseB. GlycogenC. InulinD. Cellobiose25. Heparin is one of the polysaccharides that are assigned for you to research on. Based on your readings, what is themonosaccharide units found in heparin?A. glucosamine, glucuronic acid, and iduronic acidB. glucose, fructose and galactoseC. N-acetylmuramic acid and N-galacturonic acidD. L-fucose, D-galactosamine and D-mannitol
34. Which fatty acidis most likely to bea solid at room temperature? a. CH он b. CH, CH OH CH,-C-OH C. CH, CH=CH CH CH, CH=CH, CH d. CH, CH CH CH -C-OH
1. This cell is dependent solely on glucose as an energy source a.Muscle cells b.Kidney cells c.Liver cells d.Brain cells 2. The monosaccharide of amylase in starch is a.Fructose b.Maltose c.Glucose d.Dextrose 3. The following bond can be found in sucrose a.Alpha-1,2-glycoside bond b.Beta-1,4-glycoside bondc.Alpha-1,4-glycoside bond d.Alpha-1,6-glycoside bond 4. Glucose is transported by facilitated diffusion in brain via a.GLUT-1 transporter b.GLUT-2 transporterc. GLUT-3 transporter d. GLUT-4 transporter
1. Is the disaccharide reducing? Yes or no and why. 2. Will the disachharide react positively with benedicts reagent? Yes or No. 3. What is the specific glycosidic linkage of the disacchride? A. alpha-1,4 glycosidic linkage B. beta-1,3 glycosidic linkage C. alpha-1,3 glycosidic linkage D. beta-1,4 glycosidic linkage