30 Questions
What is the primary source of energy for the body?
Carbohydrates
What is the general empirical formula for carbohydrates?
Cn(H2O)n
What is the molecular formula of glucose?
C6H12O6
What are macromolecules composed of?
Smaller organic molecules
What is the role of carbohydrates in cell identification?
Cell identification
If a carbohydrate has 7 carbons, what would be its molecular formula?
C7(H2O)7
What is the carbonyl group used to classify carbohydrates into?
Aldehyde group or ketone group
What is the term used to describe carbohydrates with 3 to 10 sugar units?
Oligosaccharides
Which type of polysaccharide consists of different monosaccharides?
Heteropolysaccharides
What is the characteristic of an aldose?
Carbonyl on C1
What is the suffix that indicates a molecule is a carbohydrate?
-ose
How many carbon atoms do the most common monosaccharides have?
3-8 carbon atoms
What do the prefixes tri-, tetr-, pent- indicate in a monosaccharide?
The number of carbon atoms
What is the simplest form of monosaccharides?
Trioses
What is the reason for monosaccharides to exist in a cyclic form?
To increase stability
Which of the following monosaccharides does not have a chiral carbon atom?
Dihydroxyacetone
What is the consequence of the presence of asymmetric carbon atoms in monosaccharides?
Gain of optical activity
What is the role of glyceraldehyde in the study of monosaccharides?
It is used as a standard reference molecule
What type of stereoisomers are D-glyceraldehyde and L-glyceraldehyde?
Enantiomers
What is the characteristic of a pair of epimers?
They have opposite configurations at one or more chiral centres
What is the difference between pyranose and furanose ring structures?
Number of ring members
What is the importance of glucose in human metabolism?
It is the most important simple carbohydrate
What is the term for a monosaccharide that rotates polarized light to the right?
Dextrorotatory
What is the term for a monosaccharide that rotates polarized light to the left?
Levorotatory
What is the structural isomer of glucose?
Fructose
What is the result of excess galactose in the body?
Cataract
What is the type of bond formed between two monosaccharides?
Glycosidic bond
What is the disaccharide formed by the combination of glucose and galactose?
Lactose
What is the result of fructose intolerance?
Hypoglycaemia
Which disaccharide is commonly called 'table sugar'?
Sucrose
Test your knowledge on carbohydrate structure, macromolecules, and their functions in the body. This quiz covers the basics of carbohydrates, including their primary sources of energy and structural components. Learn about the different types of macromolecules and their subunits.
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