24 Questions
What is the result of the oxidation of the aldehyde group of glucose by a weak oxidizing agent?
Gluconic acid
Which compound is formed when concentrated nitric acid oxidizes both the aldehyde and the primary alcoholic groups of galactose?
Galactaric acid
What is the product of the oxidation of glucose's primary alcoholic group by a moderate oxidizing agent?
Glucouronic acid
Which compound is formed when concentrated nitric acid oxidizes both the aldehyde and the primary alcoholic groups of glucose?
Glucaric acid
What is the result of the reduction of mannose using a reducing reagent?
Mannitol
What is the product formed by the oxidation of galactose's primary alcoholic group by a moderate oxidizing agent?
Galacturonic acid
Which type of sugar yields 2 to 10 molecules of the same or different monosaccharides on hydrolysis?
Oligosaccharides
What is the designation for an oligosaccharide that yields 3 molecules of monosaccharide on hydrolysis?
Trisaccharide
Which of the following is classified as a disaccharide?
Trehalose
What is the composition of sucrose?
α-D glucose and β-D fructose units
Which polysaccharide is the main reserve of carbohydrates in animals and yeast?
Glycogen
Where is starch mainly found in plants?
In the roots and stems
Which type of polysaccharides do not taste sweet?
Cellulose
How can polysaccharides be broken down into smaller molecules?
Through hydrolysis by adding diluted acid or through enzymatic action
What distinguishes homopolysaccharides from heteropolysaccharides?
They have the same type of monosaccharide repeating units
What is the general formula of carbohydrates?
Cn(H2O)n
Which of the following is a biological function of carbohydrates?
Serving as a storage form of energy in the body
What is the most common example of a carbohydrate?
Glucose
Which functional groups are present in carbohydrates?
-OH and C=O
What is the role of carbohydrates in RNA and DNA structure?
Synthesizing ribose sugars
Which compound serves as a structural component of cell membranes?
Glucosamine
What is responsible for the formation of steroidal hormones such as Cortisol and Sex hormones?
Triglycerides
Which of the following is a protein-based chemical that acts as a messenger transmitting signals from one cell to another?
Lipoproteins
What is the main function of enzymatic proteins in the body?
Metabolic acceleration
Learn about the chemical reactions of monosaccharides including reduction and oxidation. Presented by Dr. Michael Mounir from the Faculty of Science at Helwan University.
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