As indicated in this video, the ring form of carbohydrates are more stable than the straight chain form. For practice, please draw the following ring closures. 1.) D-Glucose closed to an beta-pyranose ring. 2.) D-Glucose closed to an alpha-furnose ring.
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As indicated in this video, the ring form of carbohydrates are more stable than the straight...
D-glucose is shown below in its straight-chain and ring
forms.
A) Put an asterisk next to each chiral carbon in the
straight-chain form of D-glucose.
B) Label the given ring forms as the alpha or beta anomer of
D-glucose. Draw the other anomer. Which one is more stable, the
alpha or beta anomer? Explain your logic.
H Он он но H Но Но Н он H он он н но но
Draw the following monosaccharides in the chain form (not ring form): Write the chemical formula for both glucose and fructose: What molecular similarities, in structure, are there between the glucose and fructose molecules? What are the differences? What are these two molecules called in relation to one another? , Draw the formation of a-glucose and a P-glucose starting from the chain form using your book (page 73) as a guide, (use chemical symbols) alpha-glucose beta-glucose In equation format, draw formation...
1. Below is a monosaccharide in its cyclic (ring) form. OH он Linear form OH a) Is the monosaccharide the a-or the B-anomer? b) Label each carbon with its carbon number. c) Draw the linear form of this monosaccharide with the correct chirality in the box at right. 2. a) Draw the linear form of D-ribose: b) Ribose can form a pyranose ring. Draw an electron arrow on your linear ribose drawing above, indicating which nucleophile attacks which electrophile to...
Draw most stable chair form for the more stable stereoisomer
for the molecule. All help is appreciated
yclohexane Chair Practice 9. For each of the following do two things: A draw the most stable chair form for the more stable stereoisomer for the molecule B. identify whether the more stable stereoisomer is cis or trans. 7. 1-butyl-2-methylcyclohexane 8. 3-t-butyl-1-methylcyclohexane 9. 1,4-diethylcyclohexane C. For each of the following, do two things: A draw the most stable chair form over groups C...
CH401 Biochemistry I Homework Assignment #6, Carbohydrates 1. Indicate whether each of the following pairs of sugars consists of anomers, epimers, enantiomers, or none of these relationships. a. D-glyceraldehyde and dihydroxyacetone. annos b. D-glucose and D-mannose - epimers c. D-erythrose and L-erythrose er m ers d. a-D-glucose and B-D-glucose - enoshowers e. D-ribose and D-arabinose - f. D-galactose and D-glucose - 2. What does the enzyme mutarotase catalyze? Show by an equation using the glucose isomers. 3. Draw the Haworth...
Question 24 (1 point) Even though amylose and cellulose are made of similar homo-polysaccharide chains, they have very different properties. Why? the alpha glycosidic linkage of glucose molecules in amylose cause it to form helices that exclude water O the beta glycosidic linkage of glucose molecules in cellulose forms inter-chain and intra-chain hydrogen blmds that produce straight stable fibers that exclude water Ocellulose is composed of galactose, while amylose is composed of glucose cellulose is more hydrophilic amylose makes a...
21. Which of the following is not a function of carbohydrates? A) They are catalytic components of enzymes B) They play key roles in processes that take place on the surface of cells C) They are major energy sources D) They are used in structural roles Section: 11.1 22. Carbohydrates are A) aldehydes with two or more hydroxyl groups C) acids with two or more hydroxyl groups E) A and B B) ketones with two or more hydroxyl groups D)...
D-Glucose is in dynamic equilibrium between the three structures
shown below. Choose the form of glucose that best satisfies each of
the following characteristics.
OPTIONS ARE: alpha-D-glucopyranose, beta-D-glucopyranose,
D-glucose (open chain).
1. most reactive form - ?
2. structural unit of disaccharide maltose - ?
3. structural unit of the disaccharide cellobiose - ?
4. structural unit of the polysaccharide glycogen - ?
5. structural unit of the polysaccharide cellulose - ?
CH2OH но HO H-C-OH но-с-н н-с-он н-с-он Сн,ОН...
Hello! Just double checking the answers my organic chemistry
study guide about carbohydrates. Please go ahead
and answer ALL the questions you see below, if you
can't answer all then PLEASE let someone else do
them! High rating only given to ALL questions
complete. If a mechanism is required then please show electron
pushing arrows!
1. Draw a Fischer projection for D-glucose: (2R, 3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal. 2. Draw the Haworth formulas for both a.-D-glucopyranose and B-D-glucopyranose. 3. Draw the chair forms for...
1. Draw glucose B-D-glucose in a chair form, and circle the anomeric carbon. Why is the anomeric carbon significant? 2. Why is cyclization of sugars important? What does the concept of mutarotation indicate to us about dual roles of monosaccharides? Two part question: 3. Why are monosaccharides most commonly found in pyran and furan ring forms, rather than: A) other ring motifs -(think along the lines of: why NOT 3,4, or 7 membered rings)? B) in their linear form? 4....