Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biochem > Chaper 15 > Flashcards

Chaper 15 Flashcards

1
Q

Which of the following determines blood type O?

A

The absence of both N-acetyl-D-galactosamine and N-acetyl-D-galactose antigens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What reaction occurs when glucose is converted to gluconate?

A

Oxidation at C-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When an aldohexose adopts the pyranose structure which atoms are connected by the oxygen atom?

A

C-1 and C-5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

N-Acetylneuraminic acid is the combination of pyruvate and which other molecule?

A

Mannosamine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What explains why ketoses are reducing sugars?

A

Under basic conditions they are converted to aldoses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is true of glucitol?

A

It only exists in the open chain structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What reacts with sugar to form a glycoside?

A

Alcohol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Glycogen is structurally similar to what molecule?

A

Amylopectin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What reaction occurs when glucose is converted to glucouronic acid?

A

Oxidation at C-6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which carbon is the site of reaction when fructose reacts to form a fructoside?

A

C-2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What determines blood type B?

A

Presence of only D-galactose antigen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Complete hydrolysis of what molecule yields a single monosaccharide?

A

Mannose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Sialic acids are constituents of both glycoproteins and gangliosides. T/F

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which of the following is true of the spatial distribution of the hydroxyl groups of alpha d glucopyranose?

A

The hydroxyl on C-1 is axial

All others are equatorial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What determines type A blood?

A

Presence of N-acetyl-D-galactosamine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Maltose

A

Alpha 1-4
Both glucoses are alpha
Reducing sugar

17
Q

Trehalose

A

Alpha 1-1
Glucose units are alpha
Reducing sugar

18
Q

Lactulose

A

Beta 1-4
Galactose is alpha
fructose is beta

19
Q

Isomaltose

A

Alpha 1-6

Glucose

20
Q

Starch

A

Polymer of D-glucose

Amylose and amylopectin

21
Q

Amylose

A

Unbranched alpha 1-4

22
Q

Amylopectin

A

Alpha 1-4 and branched alpha 1-6

23
Q

Glycogen

A

Energy reserve carbohydrate

Branched polysaccharides with alpha 1-4 and alpha 1-6 bonds

24
Q

Cellulose

A

Linear polysaccharide with beta 1-4 bonds

25
Q

Hyaluronic acid

A

D-glucouronic acid and N-Acetyl-D-glucosamine

26
Q

Chitin

A

Polymer of N-acetylglucosamine

27
Q

Heparin

A

Acidic polysaccharide
Heterogeneous mixture of variably sulfonate polysaccharide chains
Anticoagulant

28
Q

Chondroitin 6 phosphate

A

Acidic polysaccharide

N-acetylgalactosamine and glucouronic acid

29
Q

3 naturally occurring alditols

A

Erythrose
Mannose
Xylose

30
Q

Aldonic acid

A

Aldehyde group of an aldose is oxidized under basic conditions to a carboxylate anion

31
Q

Uronic acid

A

Enzyme catalyzed oxidation of the primary alcohol (c6) of a hexose

32
Q

Sucrose

A

Alpha 1-2 bond
Glucose is alpha
Fructose is beta

32
Q

Lactose

A

Beta 1-4
Galactose is alpha
Glucose is beta
Reducing sugar

Biochem (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions