Question 9 (Mandatory)0 / 1 pointThe ẞ-furanose and ẞ-pyranose forms of D-ribose often exist in equilibrium. What's the relationshipbetween these two forms of D-ribose?D-Ribose:HHOCH2OHHHHOHHOHOHH 3 2 HHOB-Furanose form3OHH OHHOHB-Pyranose formA) Conformational isomersB) Constitutional isomersC) Resonance formsD) StereoisomersQuestion 10 (Mandatory)What is the relationship between the two following structures?0/1 point

Step 1:Both have same molecular formula but have different bonding arrangement between the atoms so…

Answered: Question 9 (Mandatory) 0 / 1 point The…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter22: Organic And Biological Molecules

Section: Chapter Questions

Problem 105E

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Chemistry 7. The linear chain form of mannose is shown below (on the left side). Draw the Hayworth structure of the cyclic anomer of fructose (named on the right side). Upload HO-C-H HO-C- H-C-CH H-C-OH CHOH D-Mannose Choose a File a-D-Mannofuranose
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1- Starch is a saccharide. a) reducing b) branched chain c) B-glucose straight chain d) oligo 2- The branching in the linkage between a) amylose; C1-C4 b) amylose; C1-C6 c) amylopectin; Ci-C4 d) amylopectin; C1-C6 3- The general formula of polysaccharides is: (A) (C6H10O5)n (B) (C6H12O5)n (C) (C6H10O6)n (D) (C6H10O6)n 4-The Ribose structure of fructose is obtained by the interaction of groups at component of starch occurs by the glycosidic carbons. which carbon atoms? a) C1 and C5 b) C1 and C6 c) C1 and C4 d) C2 and C5 5-. Lactose does not form homo disaccharides? a) True b) False 6- Which of the following glycosidic linkage found in maltose? a) Glucose (a-1 – 2B) Fructose b) Glucose (a1– 4) Glucose c) Galactose (B1– 4) Glucose d) Glucose (B1 – 4) Glucose
2. The following diagram shows the straight-chain structure of an N-acetyl aminoheptose that is found in certain plants including avocado (Persea Americana). CHOH CH2OH CH,OH O: O: HO- но -HO- HO H но -HO- H- NHAC NHAC ACHN OH HN H- HO- HO CH2OH CHOH CH20H HO HO. Structure B Structure C Structure A OH OH CHOH CH2OH CH OH HO H HO H HO- H OH HO- HO H- -NHAC ACHN- ACHN HO- H OH HO ČHOH CH2OH CH2OH Structure D Structure E Structure F Which of the Fischer projections (A-F) matches the skeletal formula shown? Structure A Structure B Structure C Structure D Structure E O Structure F (1 mark) 王 HI
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Ribose, a carbohydrate with the formula shown, forms a cyclic hemiacetal, which, in principle, could contain either a four-membered, five-membered, or six-membered ring. To determine which ring is formed, ribose is treated with methanol in the presence of an acid catalyst. The products are then isolated and treated with NalO, then with H30*. он MEOH 1. NalO. 2. H,O* A & B MEOH + products HO H* isomeric cyclic acetals with formula CgH1205 ÕH Ribose, CSH1005
Figone 7-4 애 Hㅇ.. 5 시 9- 3 '애 2 3... 애 "애애 glucose 애 6 5 Ho.... 4 open •애 3 애 요 chain 애애 OH 4 How.k 애 2 애 애 B-glucose
What is/are the product(s) formed when K2Cr2O7? H,C- QHU C- CH, H H CH is oxidized with H CH CH H,C- CH H. CH3 then CH -CH2 CH H CH CH3(CH2)4COOH H3C- ར་ ཨ་ ཨ་་
The structure of 4 isomers of an aldotetrose carbohydrate are given. 1) select every structure that is a diastereomer of structure D A, B, or C? 2) select every structure that is a enantiomer of structure C D, B, or A? 3) select every structure that is a stereoisomer of structure D A, B, or C
57. What are the nucleophile and electrophile in the cyclization of glucose below?
The molecule below belongs to which class of lipid? 0 CH2-0-C-(CH2)10 CH3 0 CH-O-C-(CH2)10CH 3 O i + CH2-0-P-0-(CH2)2-N(CH3)3 O glycerophospholipid O sphingolipid O triglyceride O cholesterol
1. Simple sugars are defined as polyhydroxy aldehydes/ketones. All carbons except one have an OH group. The remaining carbon has a double bond to oxygen, making it an aldehyde or ketone. For example, the Fisher projection of glucose looks like this: C H- H- -ОН НО -ОН -HO- CH2OH Because a simple sugar has both a carbonyl carbon and built-in nucleophiles, a reaction can occur within the molecule itself to create the hemi-acetal form of the sugar. Propose a mechanism for this reaction when it occurs in an aqueous solution. C -- CH2OH он в CH2OH HO- H H НО H. ОН Н and ОН Н HO- он Он а OH H H- ОН OH H ОН ČH2OH

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