Carbohydrate Structures Homework Quiz PDF

Summary

This is a homework quiz on carbohydrate structures suitable for undergraduate students in biochemistry or drug science. The quiz contains multiple choice questions covering various aspects of carbohydrate chemistry and is designed to test the understanding of students on the topic.

Full Transcript

Carbohydrate Structures Homework Quiz Due Aug 24 at 11:59pm Points 20 Questions 20 Time Limit 30 Minutes Allowed Attempts 5 Take the Quiz Again Attempt History Attempt Time Score KEPT Attempt 2...

Carbohydrate Structures Homework Quiz Due Aug 24 at 11:59pm Points 20 Questions 20 Time Limit 30 Minutes Allowed Attempts 5 Take the Quiz Again Attempt History Attempt Time Score KEPT Attempt 2 3 minutes 20 out of 20 LATEST Attempt 2 3 minutes 20 out of 20 Attempt 1 11 minutes 19.5 out of 20  Answers will be shown after your last attempt Score for this attempt: 20 out of 20 Submitted Aug 21 at 12:42pm This attempt took 3 minutes.  Question 1 1 / 1 pts Which of the following contains glucose (a1-4) bond? (pick all that apply) cellulose amylose maltose lactose sucrose  Question 2 1 / 1 pts D-glucose is epimerized on carbon #2. What did it become? D-ribose D-galactose D-fructose D-mannose L-glucose D-glucuronate  Question 3 1 / 1 pts Draw glyceraldehyde. How many stereoisomers can there be? 6 2 (1 chiral carbon) 3 4 1 (no chiral carbons) 5  Question 4 1 / 1 pts Draw glycerol. How many stereoisomers are there? 3 1 (no chiral carbons) 5 4 2 (1 chiral carbon) 6  Question 5 1 / 1 pts Which of the following is an epimer of glucose? glucuronic acid galactosamine fructose maltose amylose mannose glycogen  Question 6 1 / 1 pts Fructose contains which of the following functional groups? (Pick all that apply) aldehyde ketone phosphate hemiacetal amine alcohol amide acetal carboxylic acid  Question 7 1 / 1 pts What is another biochemical name for a repeating disaccharide? sucorse lactose oligosaccharide peptide maltose glycan  Question 8 1 / 1 pts What is the configuration of D-glyceraldehyde? R S  Question 9 1 / 1 pts Which of the following bond is found in glycogen? (pick all that apply) Gal(beta1-4) Glc(alpha1-4) Glc(alpha1-6) Glc(beta1-4)  Question 10 1 / 1 pts When glucose forms a ring, what happened? one of the alcohol groups reacted with the aldehyde one of the alcohol groups reacted with the ketone one of the ketone group reacted with the aldehyde  Question 11 1 / 1 pts Is D-2-deoxyglucose the same thing as D-2-deoxygalactose? No Yes  Question 12 1 / 1 pts The enzyme lactase, found in our intestine, breaks which type of bond? Gal(beta1-4) Glc(beta1-4) Glc(alpha1-4)  Question 13 1 / 1 pts If a urine sample of a diabetic patient has Copper (II) Nitrate added to it, is heated and as a result a brick red precipitate forms, what most likely happened? glucose is oxidized glucose is reduced glucose is phosphorylated glucose is aminated  Question 14 1 / 1 pts The reduced form of glucose is named? galactosamine glucosamine sorbitol mannose  Question 15 1 / 1 pts Which of the following is a 5 carbon sugars? galactose glucose amylose cellulose glycogen maltose fructose pentane ribose sucrose octane  Question 16 1 / 1 pts What biochemical feature is common in cellulose and is not found in glycogen? alpha 1-1 alpha bonds alpha 1-2 beta bonds ester bonds alpha 1-4 bonds alpha 1-6 bonds beta 1-4 bonds  Question 17 1 / 1 pts Which 6 of the following sugars are monosaccharides? (pick 6) amylopectin agarose glucuronate mannose fructose trehalose amylose lactose sucrose galactose ribose glucose glycogen maltose cellulose  Question 18 1 / 1 pts Which of the following sugars contains a ketone? fructose glucanolactone cellulose glucosamine glucose glycogen  Question 19 1 / 1 pts Which of the following sugars contains only glucose? lactose maltose heparin sucrose chitin  Question 20 1 / 1 pts Which of the following sugars would test negative to the reducing sugar test? lactose mannose galactose sucrose maltose glucose Quiz Score: 20 out of 20

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