FDSC 2140 Quizzes Exam 1 Questions
with complete solution
which of the following sugars are reducing sugars?
glucose
fructose
dextrose
sucrose - correct answer glucose
fructose
dextrose
the most correct chemical name for sucrose is
alpha-1-glucose, beta-2-fructose
best-1-glucose, alpha-2-fructose
alpha-1-glucose, alpha-2-fructose
alpha-2-fructose, beta-1-glucose - correct answer alpha-1-glucose, beta-2-
fructose
true or false:
the position (up or down) of the OH group on the carbonyl carbon determines
if a sugar is alpha or beta - correct answer true
true or false:
dextrose is the same sugar as sucrose - correct answer false
, true or false:
pectin is a polymer of galacturonic acid molecules joined together with alpha,
1-4 bonds - correct answer true
true or false:
amylose and amylopectin both contain alpha 1-4 bonds - correct answer true
true or false:
during the gelatinization and gelling of starch, primarily amylopectin molecules
will move from inside to outside the starch molecule - correct answer false
true or false:
invert sugar is produced commercially by a process that uses heat and acid -
correct answer true
true or false:
lactose intolerance results because nearly no monosaccharide can pass
through the intestinal wall - correct answer false
true or false:
high methoxy pectin is more polar + forms stronger crosslinks than low
methoxy pectin when calcium is added - correct answer false
match the following items with the base answer
beta-glucans
cellulose
with complete solution
which of the following sugars are reducing sugars?
glucose
fructose
dextrose
sucrose - correct answer glucose
fructose
dextrose
the most correct chemical name for sucrose is
alpha-1-glucose, beta-2-fructose
best-1-glucose, alpha-2-fructose
alpha-1-glucose, alpha-2-fructose
alpha-2-fructose, beta-1-glucose - correct answer alpha-1-glucose, beta-2-
fructose
true or false:
the position (up or down) of the OH group on the carbonyl carbon determines
if a sugar is alpha or beta - correct answer true
true or false:
dextrose is the same sugar as sucrose - correct answer false
, true or false:
pectin is a polymer of galacturonic acid molecules joined together with alpha,
1-4 bonds - correct answer true
true or false:
amylose and amylopectin both contain alpha 1-4 bonds - correct answer true
true or false:
during the gelatinization and gelling of starch, primarily amylopectin molecules
will move from inside to outside the starch molecule - correct answer false
true or false:
invert sugar is produced commercially by a process that uses heat and acid -
correct answer true
true or false:
lactose intolerance results because nearly no monosaccharide can pass
through the intestinal wall - correct answer false
true or false:
high methoxy pectin is more polar + forms stronger crosslinks than low
methoxy pectin when calcium is added - correct answer false
match the following items with the base answer
beta-glucans
cellulose
