Podcast
Questions and Answers
What is the purpose of Molisch's test?
What is the purpose of Molisch's test?
- To check for the presence of carbohydrates in a given analyte (correct)
- To check for the presence of proteins in a given analyte
- To check for the presence of lipids in a given analyte
- To check for the presence of nucleic acids in a given analyte
What is the name of the reagent used in Molisch's test?
What is the name of the reagent used in Molisch's test?
- Fehling's solution
- Molisch's reagent (correct)
- Tollen's reagent
- Benedict's reagent
Which carbohydrates do NOT give a positive result in Molisch's test?
Which carbohydrates do NOT give a positive result in Molisch's test?
- Tetroses & trioses (correct)
- Disaccharides & monosaccharides
- Polysaccharides & glycoproteins
- Pentoses & hexoses
What color change confirms a positive reaction in Molisch's test?
What color change confirms a positive reaction in Molisch's test?
In Molisch's test, what catalyzes the dehydration of sugars to form furfural or hydroxymethyl furfural?
In Molisch's test, what catalyzes the dehydration of sugars to form furfural or hydroxymethyl furfural?
What is the basis for the positive response in Molisch's test for carbohydrates?
What is the basis for the positive response in Molisch's test for carbohydrates?
What property of monosaccharides and oligosaccharides makes them readily soluble in water?
What property of monosaccharides and oligosaccharides makes them readily soluble in water?
Why are there several difficulties in the qualitative analysis of carbohydrates in a sample that contains a mixture of carbohydrates?
Why are there several difficulties in the qualitative analysis of carbohydrates in a sample that contains a mixture of carbohydrates?
What recommendation is given for carrying out qualitative tests for carbohydrates in a laboratory setting?
What recommendation is given for carrying out qualitative tests for carbohydrates in a laboratory setting?
Why are specific rapid tests recommended for establishing the presence or absence of sugars or carbohydrates in a sample?
Why are specific rapid tests recommended for establishing the presence or absence of sugars or carbohydrates in a sample?
What is the most common type of test used to detect the presence of carbohydrates in a solution?
What is the most common type of test used to detect the presence of carbohydrates in a solution?
What concentration range of sugar solutions is typically used to confirm the sensitivity of carbohydrate tests?
What concentration range of sugar solutions is typically used to confirm the sensitivity of carbohydrate tests?
