32 Questions
What is the most abundant biomolecule in nature?
Carbohydrates
Which carbohydrate serves as the structural element in plants?
Starch
What is the main role of glycogen in the human body?
Long-term energy storage
Which type of sugars cannot be hydrolyzed into simpler carbohydrates?
Monosaccharides
What is the basic formula for carbohydrates?
$Cn(H2O)n$
Which carbohydrate provides a short-term energy reserve?
Glycogen
What type of human blood is considered a universal donor?
Type O
Which monosaccharide replaces one of its hydroxyl groups with an amino group to form an amino sugar?
Glucose
What term describes each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties?
Superimposable Mirror-Image Isomer
What disaccharide contains two B-D-glucose molecules linked through B1,4 glycosidic linkages?
Cellobiose
Which type of compounds differ only in the spatial arrangement of their atoms?
Stereoisomers
Which disaccharide is the principal carbohydrate in milk?
Lactose
What term describes a pair of molecules that are mirror images of each other?
Enantiomers
Do Diastereomers also differ in their boiling points and freezing points?
No
What causes lactose intolerance?
Deficiency in lactase to hydrolyze lactose
What term describes diastereomers whose molecules differ only in the configuration at one chiral center?
Epimers
What reaction characterizes the formation of maltose as a disaccharide?
B-1,4 linkages
What governs the tetrahedral geometry of the four groups attached to the atom at the chiral center?
Vertical lines
Which type of carbohydrate contains 2-10 monosaccharide units?
Oligosaccharides
Which common disaccharide is also known as milk sugar?
Lactose
What is the term for molecules that are non-superimposable on their mirror images?
Chiral molecules
Which designation is used to determine the orientation of -H and -OH groups around the carbon atom adjacent to the terminal primary alcohol carbon in sugars?
D and L Isomerism
Which molecule mentioned in the text can exist in two isomeric forms that are mirror images of each other?
Glyceraldehyde
Which type of molecules are optical isomers and not superimposable on their mirror images?
Enantiomers
Which type of linkage is found in amylose?
a-1,4 linkages
What is the main storage polysaccharide in humans and animals?
Glycogen
Which polysaccharide is known to be a dietary fiber and aids in softer stools?
Cellulose
What provides rigidity to the exoskeletons of crabs and insects?
Chitin
Which acidic polysaccharide is essential for lubrication in joint movement?
Hyaluronic Acid
What percentage of carbohydrates should a balanced diet ideally contain?
60%
'Glycolipids' are lipid molecules bonded to what type of units?
Carbohydrate units
'Glycoproteins' are protein molecules bonded to what type of units?
Carbohydrate units
Test your knowledge of stereoisomerism and isomer classification with this quiz. Learn about superimposable mirror-image isomers, stereoisomers, enantiomers, diastereomers, and epimers.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
