Biochemistry ACS Final Exam | Actual Questions and Answers
Latest Updated 2026/2027 (Graded A+)
• Question
What is the D configuration of a sugar in a Fisher projection?
Correct Answer: chyrol carbon furthest from the carboxyl group
hydroxyl on right
• Question
What is the L configuration of a sugar in a Fisher projection?
Correct Answer: hydroxyl on left
• Question
What is the difference between glycogen and amylopectin?
Correct Answer: glycogen- has branches about every 10 residues (more highly
branched)
amylopectin- has branches about every 25
• Question
What is amylose made up of?
Correct Answer: glucose
• Question
What makes up starch?
Correct Answer: amylose amlyopectin
• Question
What is a glycosidic bond?
Correct Answer: links two monosaccharides together at points 1 and 4
• Question
What is the difference between an alpha(1-4) and beta(1-4) linkage?
Correct Answer: alpha: when the oxygen is pointed down in a glycosidic bond
beta: when the oxygen is pointed up in a glycosidic bond
, • Question
What is the definition of a carbohydrate?
Correct Answer: all have hydroxyl and carbonyl functional groups
• Question
Difference between aldose and ketose
Correct Answer: aldose has an aldohyde
ketose has a ketone
• Question
What makes up sucrose?
Correct Answer: fructose and glucose monosaccharides
• Question
What makes up lactose?
Correct Answer: glucose and galactose monosaccharides
• Question
What makes up mannose?
Correct Answer: two glucose monosaccharides
• Question
What are lipids?
Correct Answer: soluble in other nonpolar solvents (not water)
• Question
What are triglycerides composed of?
Correct Answer: glycerol and three fatty acids
• Question
What is saponification?
Correct Answer: base hydrolysis of a triglyceride or other fat
strong base is added
breaks ester linkages to release hydroxyls and form glycerol
Latest Updated 2026/2027 (Graded A+)
• Question
What is the D configuration of a sugar in a Fisher projection?
Correct Answer: chyrol carbon furthest from the carboxyl group
hydroxyl on right
• Question
What is the L configuration of a sugar in a Fisher projection?
Correct Answer: hydroxyl on left
• Question
What is the difference between glycogen and amylopectin?
Correct Answer: glycogen- has branches about every 10 residues (more highly
branched)
amylopectin- has branches about every 25
• Question
What is amylose made up of?
Correct Answer: glucose
• Question
What makes up starch?
Correct Answer: amylose amlyopectin
• Question
What is a glycosidic bond?
Correct Answer: links two monosaccharides together at points 1 and 4
• Question
What is the difference between an alpha(1-4) and beta(1-4) linkage?
Correct Answer: alpha: when the oxygen is pointed down in a glycosidic bond
beta: when the oxygen is pointed up in a glycosidic bond
, • Question
What is the definition of a carbohydrate?
Correct Answer: all have hydroxyl and carbonyl functional groups
• Question
Difference between aldose and ketose
Correct Answer: aldose has an aldohyde
ketose has a ketone
• Question
What makes up sucrose?
Correct Answer: fructose and glucose monosaccharides
• Question
What makes up lactose?
Correct Answer: glucose and galactose monosaccharides
• Question
What makes up mannose?
Correct Answer: two glucose monosaccharides
• Question
What are lipids?
Correct Answer: soluble in other nonpolar solvents (not water)
• Question
What are triglycerides composed of?
Correct Answer: glycerol and three fatty acids
• Question
What is saponification?
Correct Answer: base hydrolysis of a triglyceride or other fat
strong base is added
breaks ester linkages to release hydroxyls and form glycerol
