Karteikarten
Starch Glycogen and Cellulose
Karten in diesem Stapel (18)
- 1Where is glycogen stored in and how is it stored in animals?Stored as small granules mainly in the muscle and liver.
- 2What does the cellulose cell wall cause the plant cells to be?turgid, pushing against one another so it becomes semi-rigid.
- 3What does the cellulose cell wall prevent within the cell?Prevents the cell from bursting as it takes up water via osmosis.
- 4What type of bonds are in cellulose and how?hydrogen bonds, form cross-linkages between the adjacent chains. The sheer number of hydrogen bonds adds to the strength of the molecule.
- 5How would you describe cellulose's chain?straight an unbranched.
- 6What is unique to cellulose?In order for the beta glucose to form glycosidic links, it must be rotated 180degrees compared to its neighbour.
- 7Where is cellulose found?In plant cell walls providing rigidity for the cell.
- 8What monomer is cellulose made out of?Beta glucose.
- 9Due to glycogen having shorter chains than starch, it means..it's more readily hydrolysed into alpha glucose.
- 10Starch, glycogen and cellulose are all example of..polysaccharides, therefore carbohydrates
- 11Glycogen is similar in structure to starch but..has shorter chains that are more branched.
- 12Name a polysaccharide that is always found in animal cells?Glycogen
- 13Why is starch being broken down into alpha glucose an advantage?It is more easily transported round the body and used for respiration.
- 14Some facts of starch include..It's insoluble, therefore has no effect on water potential/osmosis. As it is insoluble, it does not easily diffuse out of cells. It can be broken down via hydrolysis into alpha-glucose.
- 15How is starch adapted for being inside the cell?It's an unbranched chain that is highly coiled and very compact. This allows for a large volume to be stored in a small place.
- 16What is starch made up of? How are these joined?alpha glucose monomers, joined by glycosidic bonds in a condensation reaction.
- 17Why is starch important?It forms an important component of food and is a major energy source for most diets.
- 18Where is starch found and as what?Starch is found in plants as small grains.
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- AS Biology2 (The Variety of Life) Karteikarten am Starch Glycogen and Cellulose, erstellt von sammi_taylor01 am 28/05/2013.
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- sammi_taylor01
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