Which of the following statements is true about Chitin
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Which of the following statements is true about Chitin ?
| a. |
short, branching chains of nitrogen-containing sugar monomers are linked by hydrogen bonds |
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| b. |
found in the nucleus of |
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| c. |
weak, translucent, and stiff structural material |
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| d. |
polysaccharide similar to cellulose |
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- Which of the following is incorrect regarding nucleotides?a. They contain a sugar, a nitrogen-containing base, and aphosphate group.b. They are the monomers of fats and polysaccharides.c. They join together by alternating covalent bonds between thesugars and phosphate groups.d. They are present in both DNA and RNAWhat is the chemical difference between cellulose and chitin? Select one: a. Replacement of the hydroxyl group at C5 with an acetylated amino group b. Replacement of the hydroxyl group at C3 with an acetylated amino group c. Replacement of the hydroxyl group at C4 with an acetylated amino group d. Replacement of the hydroxyl group at C2 with an acetylated amino groupBased on what you know about glycosidic bonds, propose a scheme for formation of covalent bonds between the carbohydrate and protein portions of glycoproteins
- Cellulose is a ___. component of cell membranes polysaccharide found in cell walls of plants an oligosaccharide found in animals a component of invertebrate exoskeletonsCellulose is to carbohydrate as: a. amino acid is to protein. b. lipid is to fat. c. collagen is to protein. d. nucleic acid is to DNA. e. nucleic acid is to RNA.Which polysaccharide is usually found in the cell walls of fungi? a. starch b. glycogen c. chitin d. cellulose
- The monomers that make up proteins are called_____. a. nucleotides b. disaccharides c. amino acids d. chaperonesExplain at least three functions that lipids serve in plants and/or animals.Which of the following makes carbohydrates unique from the other biological macromolecules? Select one: a. Long-term energy storage is provided by carbohydrates. b. Carbohydrates contain a 1:2:1 ratio of carbon to hydrogen to oxygen. c. Carbohydrates are polymers that always form a ring structure. d. The monomers in carbohydrates are held together by peptide bonds.
- Which of the following polysaccharides is the principal form of stored sugars in animals? A. Starch B. Glycogen C. Cellulose D. ChitinWhich of the following is the compound that animals use to store sugars? Select one: a. Cellulose b. Glucose c. Starch d. Amylopectin e. Glycogen f. ChitinProteins are among the most diverse macromolecules because A-they contains both amino groups and carboxyl groups. B-they can twist and fold into many different and complex structures. C-they contains nitrogen as well as carbon, hydrogen, and oxygen. D-their R groups can be either acidic or basic Which of the following statements about cellulose is true? A-Animals make it and use it to store energy. B-Plants make it and use it to store energy. C-Animals make it and use it as part of the skeleton. D-Plants make it and use it to give structural support to cells. A major difference between polysaccharides and proteins is that a-plants make polysaccharides, while animals make proteins. B-proteins are made of monomers, while polysaccharides are not. C-polysaccharides are made of monosaccharides, while proteins are made of amino acids. D-proteins carry genetic information, while polysaccharides do not.
