Please answer the two questions.

1. What type of chemical reactions links monomers into polymers? What types of chemical reactions break polymers apart into their respective monomers?

2. Describe the role of each of the following polysaccharides in cellular function.

a. Starch

b. glycogen

c. cellulose

d. chitin

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Beverley SmithLv2

22 Dec 2018

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Related questions

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 Î±-glucose subunits. True
4. Starch is composed of amylose and amylopectin, which are unbranched and branched chains of Î±-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 Î²-glucose subunits. True
9. The starch-hydrolyzing enzymes produced by most organisms cannot break the bond between two Î± -glucose subunits because they only recognize Î² linkages. False
10. Chitin is a structural polysaccharide found in the exoskeleton of arthropods and the cell wall of many fungi. True

Carbohydrates & Lipids

1. In what four ways do simple sugars differ and of what overall importance is this ?

Importance:

2. Structurally, what is different about starch and glycogen versus cellulose and chitin? How does this affect how we process these polysaccharides?

3. What role did carbohydrates play in chemical evolution and what is your evidence? Lipids?

Carbohydrates:

Lipids :

4. What is the difference between saturated and unsaturated lipids? What about the chemistry dictates the physical state of saturated and unsaturated lipids? How do we observe these differences (examples)?

Saturated:

Unsaturated:

whitechinchilla198

1. In what four ways do simple sugars differ (0.5/ea) and of what overall importance is this (1)?

Importance (1):

2. Structurally, what is different about starch and glycogen versus cellulose and chitin? How does this affect how we process these polysaccharides (2)?

3. What role did carbohydrates play in chemical evolution and what is your evidence? Lipids?

Carbohydrates (1):

Lipids (1):

Saturated (1.5):

Unsaturated (1.5):