Starch, Cellulose, Glycogen Flashcards
(17 cards)
What is the function of starch?
Store of glucose
What type of glucose is starch made from?
Alpha glucose
What type of bonds are found in amylose?
1-4 glycosidic bonds
What type of bonds are found in amylopectin?
1-4 and 1-6 glycosidic bonds
What is the function of cellulose?
Structure strength for cell wall
What type of glucose is cellulose made from?
Beta glucose
What type of bonds are found in cellulose?
1-4 glycosidic bonds
Where is glycogen primarily located in animals?
Mainly in muscle and liver cells
What type of glucose is glycogen made from?
Alpha glucose
What type of bonds are found in glycogen?
1-4 and 1-6 glycosidic bonds
What is the structure of cellulose?
Polymer forms long, straight chains. Chains are held in parallel by many hydrogen bonds to form fibrils.
What provides collective strength in cellulose?
Many hydrogen bonds
Is cellulose soluble or insoluble?
Insoluble - won’t affect water potential
What is the structure of starch?
Made of 2 polymers: Amylose (an unbranched helix) and Amylopectin (a branched molecule)
How does the structure of starch lead to its function?
Helix can compact to fit a lot of glucose in a small space. Branched structure increases surface area for rapid hydrolysis back to glucose.
What is the significance of the branched structure in starch?
Increases surface area for rapid hydrolysis back to glucose
Is starch soluble or insoluble?
Insoluble - won’t affect water potential
