18 Questions
What classifies monosaccharides?
Presence of an aldehyde or ketone group
Which suffix is used for naming aldose sugars based on the number of carbon atoms?
-ose
What determines whether a sugar belongs to the D or L series?
Orientation of H and OH groups around carbon atom 5
Which form of D-glucose is commonly used as a carbohydrate supplementation?
α-D-glucose
Which disaccharide is formed by the combination of glucose and fructose?
Sucrose
Which disaccharide is found in milk and composed of glucose and galactose?
Lactose
Which disaccharide is a cleavage product of starch?
Maltose
What type of bond links the anomeric hydroxyls of glucose and fructose in sucrose?
α(1→4) glycosidic bond
What is the most important carbohydrate in the milk of mammals?
Lactose
Which monosaccharides make up sucrose?
Glucose + Fructose
What type of linkages are present in amylose?
(1→4) linkages
Why can humans not digest cellulose?
Due to lack of essential enzymes for breaking beta linkages
What are the enzymes responsible for breaking down maltose, lactose, and sucrose into smaller bits in the intestine?
Maltase, lactase, sucrase
Which disorder is characterized by the inability to metabolize lactose effectively?
Lactose intolerance
What is the primary sugar found in milk that can be broken down into glucose and galactose?
Lactose
Which enzyme deficiency leads to the inability to digest sucrose effectively?
Sucrase deficiency
What is the main sugar found in beer and bread that can be broken down into glucose?
Maltose
Which blood glucose level typically characterizes hypoglycemia?
< 50 mg/dL
Test your knowledge on D-glucose isomers and cellulose digestion in this biochemistry quiz. Learn about the difference between α-D-glucose and β-D-glucose, as well as why humans cannot digest cellulose.
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