Filters
Question type

Study Flashcards

Identify each Fischer projection as the D- or L-isomer. -Identify each Fischer projection as the D- or L-isomer. -

Correct Answer

verifed

verified

Ribulose has the following structural formula.To what carbohydrate class does ribulose belong? Ribulose has the following structural formula.To what carbohydrate class does ribulose belong?    A) aldotetrose B) aldopentose C) ketotetrose D) ketopentose E) ketohexose


A) aldotetrose
B) aldopentose
C) ketotetrose
D) ketopentose
E) ketohexose

Correct Answer

verifed

verified

The glucose units in cellulose are connected by β-1,4-glycosidic bonds.

Correct Answer

verifed

verified

Under acid hydrolysis conditions,starch is converted to ________.


A) glucose
B) xylose
C) maltose
D) galactose
E) fructose

Correct Answer

verifed

verified

A monosaccharide that contains 4 carbon atoms,one of which is in an aldehyde group,is classified as a(n) ________.


A) aldopentose
B) aldohexose
C) ketopentose
D) aldotetrose
E) ketotetrose

Correct Answer

verifed

verified

Amylopectin is a straight-chain polysaccharide.

Correct Answer

verifed

verified

Hypoglycemia is a condition in which ________.


A) the glucose level in the blood is about 100 mg/dL
B) the amount of glucose in the urine is higher than normal
C) the glucose level in the blood is higher than normal
D) the glucose level in the pancreas is higher than normal
E) the glucose level in the blood is lower than normal

Correct Answer

verifed

verified

Cellulose is a monosaccharide.

Correct Answer

verifed

verified

Galactosemia is the name of a metabolic disorder.In this disorder,an enzyme is missing that is needed to ________.


A) make galactose from lactose
B) make lactose from galactose
C) convert galactose to glycogen
D) convert galactose to glucose
E) convert α-galactose to β-galactose

Correct Answer

verifed

verified

Maltose can be classified as a(n) ________.


A) disaccharide
B) polysaccharide
C) ketose
D) pentose
E) tetrasaccharide

Correct Answer

verifed

verified

The product of oxidation of an aldose is a carboxylic acid.

Correct Answer

verifed

verified

Aldehydes with an adjacent alcohol give a positive Benedict's test.

Correct Answer

verifed

verified

Chiral drugs consist of only one enantiomer.The benefits of using a pure enantiomer,rather than a mixture,include ________.


A) higher potency (lower total dose of drug)
B) elimination of side effects
C) reduced chances of drug interactions
D) all of the above
E) none of the above

Correct Answer

verifed

verified

Maltose is a ________.


A) monosaccharide
B) disaccharide
C) trisaccharide
D) polysaccharide
E) phosphosaccharide

Correct Answer

verifed

verified

Indicate the monosaccharide(s)produced upon hydrolysis of each carbohydrate.

Premises
lactose
maltose
glycogen
amylopectin
sucrose
Responses
glucose
glucose + galactose
glucose + fructose

Correct Answer

lactose
maltose
glycogen
amylopectin
sucrose

The breakdown of glucose to chemical energy for the cells to do work is an example of ________.


A) oxidation
B) respiration
C) reduction
D) anabolism
E) mutarotation

Correct Answer

verifed

verified

In the Fischer projection of D-glucose,the -OH group on the chiral carbon farthest from the aldehyde is to the left.

Correct Answer

verifed

verified

Identify each Fischer projection as the D- or L-isomer. -Identify each Fischer projection as the D- or L-isomer. -

Correct Answer

verifed

verified

The product of reduction of xylose is xylitol.

Correct Answer

verifed

verified

Humans cannot digest cellulose because they ________.


A) lack the necessary enzymes to digest β-glycosides
B) are allergic to β-glycosides
C) are poisoned by β-glycosides
D) have intestinal flora which use up β-glycosides
E) cannot digest chlorophyll

Correct Answer

verifed

verified

Showing 21 - 40 of 82

Related Exams

Show Answer