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Ribose is an important pentose sugar in the structure of nucleic acids. The linear structure for...
The following structure is that of ribose. Is this a furanose or pyranose form? Is it...
The following structure is that of ribose. Is this a furanose or pyranose form? Is it an alpha or beta anomer? ___ Is it a D or L sugar? ' Hq_0_0H HOCHZ OH
Sugar stereochemistry. The linear chain form of mannose is shown below (on the left side). Draw...
Sugar stereochemistry. 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).
3. S ugar stereochemistry. The linear chain form of mannose is shown below (on the left side). Draw the Hayw structure of the cyclic anomer of fructose (named on the right side). ?? ?? CH2OH D-Mannose ?-D-Mann°furanose Surar nolymers. Two common disaccharides are found in cane (table) sugar and dairy...
Name: Problem of the week #15 (for week 16)-November 27, 2018 (Tuesday) oChem2 (Section 4, CHE...
Name: Problem of the week #15 (for week 16)-November 27, 2018 (Tuesday) oChem2 (Section 4, CHE 3643.004)-BONUS!) EXTRA HOMEWORK Chapters 28/29-Sugars/Amino Acids (Will be collected on NOVEMBER 29, 2018- THURSDAY:*8:30AM 1. Below is the "staggered structure of D-glucose: D-glucose (A) Starting from the "staggered" conformation, draw D-glucose as a Fischer projection (you will have to draw the "eclipsed" conformation first). Go through all of the steps to show how you came up with the Fischer projection of D-glucose. Your eclipsed...
1. Below is a monosaccharide in its cyclic (ring) form. OH он Linear form OH a)...
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...
5. Below, draw a ketoheptose of your choosing in its linear form, and then in the...
5. Below, draw a ketoheptose of your choosing in its linear form, and then in the corresponding cyclic form. Linear Cyclic 6. The end of a polysaccharide that has an anomeric carbon that is not bound to another saccharide is called the reducing end; the anomeric carbon can still open and close and also act as a reducing agent. How many reducing ends does a small amylopectin molecule with 100 branches have? Refer to the structure given in our notes...
12. Which of the following best describes the components of phospholipids? A) Glycerol, one fatty acid,...
12. Which of the following best describes the components of phospholipids? A) Glycerol, one fatty acid, two phosphate groups and an aminoalcohol B) Glycerol, two fatty acids, one phosphate group, and an aminoalcohol C) Sphingosine, two fatty acid, one phosphate group and an aminoalcohol D) Glycerol, three fatty acids, and a phosphate group 13. When ribose adopts the most stable cyclic structure hemiacetal, which of the following is happening? A. it becomes a furonose C. an acetal is formed B....
5) Draw a ribose sugar and glucose sugar ring structure form. 6) To which group or...
5) Draw a ribose sugar and glucose sugar ring structure form. 6) To which group or groups of amino acids does the molecule below belong? Choose the one best answer. Make sure you consider all choices. a. Hydrophilic acidic b. Hydrophilic neutral c. Hydrophilic basic d. Hydrophobic neutral e. a and b tbandc & cand d h. danda Hin-çu-&-0 CH₂ oo- 7) Indicate with arrows the two atoms that would be involved in peptide bonds if the amino acid were...
1. For which of the following molecules is shape important for its function? Nucleic Acids...
1. For which of the following molecules is shape important for its function? Nucleic Acids Lipids Proteins Carbohydrates 2. Which of the following can possibly be found in a nucleotide? ribose No answer text provided. deoxyribose glucose uracil fatty acid phosphate 3. Which levels of protein structure may use hydrogen bonding? quarternary secondary tertiary primary 4. These molecules contain glycosidic linkages. glucose collagen...
The structure below represents a NH2 N N N N НО. OH A) nucleic acid B)...
The structure below represents a NH2 N N N N НО. OH A) nucleic acid B) nucleoside. C) glycoside. D) nucleotide. E) riboside. The structural arrangement of DNA is A) -ribose---phosphate-ribose---phosphate — 1 base base B) -ribose -phosphate-ribose-phosphate 1 base base C) -deoxyribose-base-deoxyribose -base- 1 phosphate phosphate D) -deoxyribose---phosphate — deoxyribo se —-phosphate- base base E) — deoxyribose – phosphate-deoxyribose – phosphate — 1 base base The heterocyclic compounds adenine (A) and thymine (T) form base pairs in DNA via...
36. Which statement is true about Nucleic Acids? a) DNA is a protein b) DNA is...
36. Which statement is true about Nucleic Acids? a) DNA is a protein b) DNA is identical to RNA C) RNA has the structure of a double helix, d) RNA binds to DNA but not to amino acids. e) None of these are true. 37. Which is true for DNA, RNA and Polypeptides? a) They all have R groups, b) They are formed from ribose by dehydration synthesis. c) They all have subunits that include nitrogenous bases. d) They were...
The following structure is that of ribose. Is this a furanose or pyranose form? Is it an alpha or beta anomer? ___ Is it a D or L sugar? ' Hq_0_0H HOCHZ OH
Sugar stereochemistry. 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).
3. S ugar stereochemistry. The linear chain form of mannose is shown below (on the left side). Draw the Hayw structure of the cyclic anomer of fructose (named on the right side). ?? ?? CH2OH D-Mannose ?-D-Mann°furanose Surar nolymers. Two common disaccharides are found in cane (table) sugar and dairy...
Name: Problem of the week #15 (for week 16)-November 27, 2018 (Tuesday) oChem2 (Section 4, CHE 3643.004)-BONUS!) EXTRA HOMEWORK Chapters 28/29-Sugars/Amino Acids (Will be collected on NOVEMBER 29, 2018- THURSDAY:*8:30AM 1. Below is the "staggered structure of D-glucose: D-glucose (A) Starting from the "staggered" conformation, draw D-glucose as a Fischer projection (you will have to draw the "eclipsed" conformation first). Go through all of the steps to show how you came up with the Fischer projection of D-glucose. Your eclipsed...
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...
5. Below, draw a ketoheptose of your choosing in its linear form, and then in the corresponding cyclic form. Linear Cyclic 6. The end of a polysaccharide that has an anomeric carbon that is not bound to another saccharide is called the reducing end; the anomeric carbon can still open and close and also act as a reducing agent. How many reducing ends does a small amylopectin molecule with 100 branches have? Refer to the structure given in our notes...
12. Which of the following best describes the components of phospholipids? A) Glycerol, one fatty acid, two phosphate groups and an aminoalcohol B) Glycerol, two fatty acids, one phosphate group, and an aminoalcohol C) Sphingosine, two fatty acid, one phosphate group and an aminoalcohol D) Glycerol, three fatty acids, and a phosphate group 13. When ribose adopts the most stable cyclic structure hemiacetal, which of the following is happening? A. it becomes a furonose C. an acetal is formed B....
5) Draw a ribose sugar and glucose sugar ring structure form. 6) To which group or groups of amino acids does the molecule below belong? Choose the one best answer. Make sure you consider all choices. a. Hydrophilic acidic b. Hydrophilic neutral c. Hydrophilic basic d. Hydrophobic neutral e. a and b tbandc & cand d h. danda Hin-çu-&-0 CH₂ oo- 7) Indicate with arrows the two atoms that would be involved in peptide bonds if the amino acid were...
The structure below represents a NH2 N N N N НО. OH A) nucleic acid B) nucleoside. C) glycoside. D) nucleotide. E) riboside. The structural arrangement of DNA is A) -ribose---phosphate-ribose---phosphate — 1 base base B) -ribose -phosphate-ribose-phosphate 1 base base C) -deoxyribose-base-deoxyribose -base- 1 phosphate phosphate D) -deoxyribose---phosphate — deoxyribo se —-phosphate- base base E) — deoxyribose – phosphate-deoxyribose – phosphate — 1 base base The heterocyclic compounds adenine (A) and thymine (T) form base pairs in DNA via...
36. Which statement is true about Nucleic Acids? a) DNA is a protein b) DNA is identical to RNA C) RNA has the structure of a double helix, d) RNA binds to DNA but not to amino acids. e) None of these are true. 37. Which is true for DNA, RNA and Polypeptides? a) They all have R groups, b) They are formed from ribose by dehydration synthesis. c) They all have subunits that include nitrogenous bases. d) They were...
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