Draw the structures of glucose, fructose, sucrose, starch, and cellulose (your structures must show the correct stereochemistry; for starch and cellulose draw at least two repeating units). Comment on the structural differences between starch and cellulose and how that relates to their relative viability as a biomass feedstock.
Draw the structures of glucose, fructose, sucrose, starch, and cellulose (your structures must show the correct...
Draw the structures of glucose, fructose, sucrose, starch and cellulose (your structures must show the correct stereochemistry; for starch and cellulose draw at least two repeating units). Comment on the structural differences between starch and cellulose and how that relates to their relative viability as a biomass feedstock.[15 points]
1. Which of the following carbohydrates contain ketohexoses? a. starch b. sucrose c. cellulose d. fructose d. lactose 2. Which of the following functional groups in a carbohydrate are able to be oxidized to carboxylic acids? a. ketones that are rearranged in solution b. ketones that are not rearranged in solution c. aldehydes d. alcohols 3. Which of the following carbohydrates were reducing sugars? a. lactose b. sucrose c. fructose d. starch e. cellulose 4. Why does lactose give a...
A3. The synthesis of sucrose from glucose and fructose is facilitated through the use of ATP as an energy source. The reaction equations for the process, with their Gibbs energy signs, are shown below. glucose + fructose — sucrose ATP + H20 = ADP + Pi AG = Positive AG = Negative glucose + fructose + ATP> sucrose + ADP + Pi Overall AG = Negative Answer A, B, and C. A. The two reactions shown above the line are...
(CHO)n- CH1403a-C7H1407 C7H107 cellulose and chitin- starch and glycogen-sucrose-galactose- maltose-fructose-fatty acids- polymer-monomer-saturated- unsaturated-glycerol- glycogen-collagen hemoglobin-ribose- nitrogen base- chitin-phosphate group-insulin-pentose sugar-carbon- nitrogen- hydrogen-phosphorus- steroids- hydrolysis- dehydration-hydrogen bond- covalent bond-peptide bond- disulfide bond-guanine-cytosine- adenine-thymine- uracil-van der Waals-hydrophobic- sugar and phosphate bond- 1.A is a large organic molecule that contains repeating subunits called 2. A has fatty acids with double bonds, is liquid at room temperature and comes from a plant source. 3. Amino acids are joined together by bonds. 4. All molecules...
2) if any alpha or beta show work 3)Here,make sure to describe how many reducing groups are in the molecule dissaccharide.SHOW Work Sugar Structures Describe the common structural features and the differences for each pair: (a) cellulose and glycogen; (b) D-glucose and D-fructose; (c) maltose and sucrose. Reducing Sugars Draw the structural formula for a-D-glucosyl-(1-6)-D-mannosamine and circle the part of this structure that makes the compound a reducing sugar.
5) What is meant by the term"reducing sugar"? 6) Draw out structures to show the hydrolysis of the following carbohydrates: a) Sucrose b) Lactose c) Starch ( show 4 repeating units)
5. Glucose can form two different ring structures as shown. Draw a mechanism to show how each is formed (don't worry about the stereochemistry around the anomeric carbon) он CHO HO HO он OH но OH он pyranose form of D-glucose OH CH2OH HO D-glucose HO но он он furanose form of D-glucose
(CHO)n-C7H1403-C7H1407 C7H107 cellulose and chitin- starch and glycogen-sucrose-galactose- maltose-fructose-fatty acids- polymer- monomer- saturated- unsaturated-glycerol-glycogen-collagen -hemoglobin-ribose- nitrogen base- chitin-phosphate group-insulin-pentose sugar-carbon- nitrogen- hydrogen-phosphorus- steroids- hydrolysis- dehydration-hydrogen bond- covalent bond-peptide bond- disulfide bond-guanine-cytosine- adenine-thymine-uracil-van der Waals-hydrophobic- sugar and phosphate bond- 26. DNA has the nitrogen baso instead of 27. In the structure of protein, the amino acids are joined together by 28. The backbone of DNA strands forms a bond between 29. These are nitrogenous bases from the type purines and 30....
Can someone tell me if these structures are correct? can you please write the correct structures as well. i am also have a bit of trouble with questions 4-6. please help thank you. 3- Draw the structural formulas for the following compounds: a))2,2,5,5-tetramethylheptane C H3 b) 6,6,6-trichloro-1-hexyne ) 3-chloropropanal Cy Hi CO d) trans-2.2,5,5-tetramethyl-3-hexene CH c l e) 3-methyltoluene 3-bromo-5-methylphenol CaH2rO F10 F9 4- Complete the following reactions a) b) Br c) [Ol HaC он HO CH3 5- A student...
In the box provided, draw the two stereochemical products formed when the ketone shown is reduced with sodium borohydride followed by water. Show correct stereochemistry using wedge-dot structures.I need to see the mechanism for this.3 (4).jpg