18 Questions
Where is glycogen typically found in hepatocytes?
Cytosol
What is the approximate diameter of a glycogen molecule?
21 nm
What is the primary function of cellulose in plants?
Structural support
What is the characteristic feature of amylose?
Linear polymer
How are glycogen and amylopectin similar?
Both have branch points formed by α1→6 glycoside bonds
What is the function of dextrans in dental plaque?
Forming dental plaque
What is the orientation of the carbon group at carbon 1 in a furanose ring?
In the opposite direction of the OH group
What is the primary function of starch and glycogen in cells?
Energy storage
What is the approximate percentage of glycogen in the wet weight of liver cells?
7% to 12%
Which of the following is a characteristic of amylose?
Long, unbranched chains of glucose residues
What is the type of linkage found at the branch points in glycogen?
(1 → 6) linkage
In which type of cells is glycogen especially abundant?
Both skeletal muscle cells and liver cells
What determines whether a sugar belongs to the D or L series?
The orientation of the —H and —OH groups around the carbon atom adjacent to the terminal alcohol carbon
What is the property of glucose that causes it to rotate a beam of plane polarized light to the right?
Optical activity
What is the term used to describe the glucose solutions that rotate a beam of plane polarized light to the right?
Dextrose
How many isomers of glucose can be formed due to its four asymmetric carbon atoms?
16
What is the characteristic of the enzymes responsible for the metabolism of naturally occurring monosaccharides?
They are specific for the D configuration
Which type of anomer occurs when the OH on the anomeric carbon is trans to carbon 6?
Alpha anomer
Learn about the structure and function of carbohydrates, including polysaccharides, starch, and glycogen. Understand how they serve as storage and structural forms in plant and animal cells.
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