ACS Biochemistry UPDATED ACTUAL Exam Questions and
CORRECT Answers | Verified | 100% Accurate
Question 1.
What is the L configuration of a sugar in a Fisher projection?
Correct Answer: hydroxyl on left
Question 2.
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 3.
What is amylose made up of?
Correct Answer: glucose
Question 4.
What makes up starch?
Correct Answer: amylose amlyopectin
Question 5.
What is a glycosidic bond?
Correct Answer: links two monosaccharides together at points 1 and 4
Question 6.
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 7.
What is the definition of a carbohydrate?
Correct Answer: all have hydroxyl and carbonyl functional groups
Question 8.
Difference between aldose and ketose
, Correct Answer: aldose has an aldohyde
ketose has a ketone
Question 9.
What makes up sucrose?
Correct Answer: fructose and glucose monosaccharides
Question 10.
What makes up lactose?
Correct Answer: glucose and galactose monosaccharides
• What makes up mannose? -✓✓two glucose monosaccharides
Question 11.
What are lipids?
Correct Answer: soluble in other nonpolar solvents (not water)
Question 12.
What are triglycerides composed of?
Correct Answer: glycerol and three fatty acids
Question 13.
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
Question 14.
What has a higher level of unsaturation -- oils or fats?
Correct Answer: oils
liquid at room temperature
Question 15.
What is the structure of the plasma membrane?
Correct Answer: hydrophylic head hydrophobic fatty acid tails proteins span
the phospholipid bilayer
CORRECT Answers | Verified | 100% Accurate
Question 1.
What is the L configuration of a sugar in a Fisher projection?
Correct Answer: hydroxyl on left
Question 2.
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 3.
What is amylose made up of?
Correct Answer: glucose
Question 4.
What makes up starch?
Correct Answer: amylose amlyopectin
Question 5.
What is a glycosidic bond?
Correct Answer: links two monosaccharides together at points 1 and 4
Question 6.
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 7.
What is the definition of a carbohydrate?
Correct Answer: all have hydroxyl and carbonyl functional groups
Question 8.
Difference between aldose and ketose
, Correct Answer: aldose has an aldohyde
ketose has a ketone
Question 9.
What makes up sucrose?
Correct Answer: fructose and glucose monosaccharides
Question 10.
What makes up lactose?
Correct Answer: glucose and galactose monosaccharides
• What makes up mannose? -✓✓two glucose monosaccharides
Question 11.
What are lipids?
Correct Answer: soluble in other nonpolar solvents (not water)
Question 12.
What are triglycerides composed of?
Correct Answer: glycerol and three fatty acids
Question 13.
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
Question 14.
What has a higher level of unsaturation -- oils or fats?
Correct Answer: oils
liquid at room temperature
Question 15.
What is the structure of the plasma membrane?
Correct Answer: hydrophylic head hydrophobic fatty acid tails proteins span
the phospholipid bilayer
