Can somebody check if my answer is rght? Thank you
Complex carbohydrates
Indicate whether each of the following statements about polysaccharides is True or False.
1. Polysaccharides are long polymers made of many nucleotides that have been joined through dehydration synthesis. False
2. Cellulose is the main storage polysaccharide in plants while glycogen is an important storage polysaccharide in many animals. False
3. Both starch and glycogen are composed of α-glucose subunits. True
4. Starch is composed of amylose and amylopectin, which are unbranched and branched chains of α-glucose subunits, respectively. False
5. Like amylopectin, glycogen is insoluble in water, but it has a longer average chain length and fewer branches. True
6. Although some polysaccharides are used to store energy, others serve as structural material for cells. True
7. The principal structural polysaccharide in plants is starch. True
8. Cellulose is composed of a long, branched chain of β-glucose subunits. True
9. The starch-hydrolyzing enzymes produced by most organisms cannot break the bond between two α -glucose subunits because they only recognize β linkages. False
10. Chitin is a structural polysaccharide found in the exoskeleton of arthropods and the cell wall of many fungi. True
Can somebody check if my answer is rght? Thank you
Complex carbohydrates
Indicate whether each of the following statements about polysaccharides is True or False.
1. Polysaccharides are long polymers made of many nucleotides that have been joined through dehydration synthesis. False
2. Cellulose is the main storage polysaccharide in plants while glycogen is an important storage polysaccharide in many animals. False
3. Both starch and glycogen are composed of α-glucose subunits. True
4. Starch is composed of amylose and amylopectin, which are unbranched and branched chains of α-glucose subunits, respectively. False
5. Like amylopectin, glycogen is insoluble in water, but it has a longer average chain length and fewer branches. True
6. Although some polysaccharides are used to store energy, others serve as structural material for cells. True
7. The principal structural polysaccharide in plants is starch. True
8. Cellulose is composed of a long, branched chain of β-glucose subunits. True
9. The starch-hydrolyzing enzymes produced by most organisms cannot break the bond between two α -glucose subunits because they only recognize β linkages. False
10. Chitin is a structural polysaccharide found in the exoskeleton of arthropods and the cell wall of many fungi. True
Related textbook solutions
Related questions
1) Why might it be advantageous for a storage polysaccharide to have a branched-chain structure instead of a linear structure?
| A) Compared to a linear molecule, a branched-chain polymer has less termini for addition or hydrolysis of glucose units per unit volume of polymer, thereby facilitating both the deposition and mobilization of glucose by providing more sites for enzymatic activity. | ||||||||||||
| B) Compared to a linear molecule, a branched-chain polymer has more termini for addition or hydrolysis of glucose units per unit volume of polymer, thereby complicating both the deposition and mobilization of glucose by providing less sites for enzymatic activity. | ||||||||||||
| C) Compared to a linear molecule, a branched-chain polymer has more termini for addition or hydrolysis of glucose units per unit volume of polymer, thereby facilitating both the deposition and mobilization of glucose by providing more sites for enzymatic activity. | ||||||||||||
| D) Compared to a linear molecule, a branched-chain polymer has less termini for addition or hydrolysis of glucose units per unit volume of polymer, thereby complicating both the deposition and mobilization of glucose by providing less sites for enzymatic activity. 2) Can you foresee any metabolic complications in the process of glycogen degradation? How do you think the cell handles this?
4) Why do you suppose the structural polysaccharide cellulose does not contain branches?
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