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pH and Carbohydrate Quiz

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.
The storage carbohydrate in animals is
a)
Glycogen
b)
Starch
c)
Cellulose
d)
Glucose
2.
An example of 3C Ketose sugar is
a)
Glycerose
b)
Glucose
c)
Dihydroxy acetone
d)
Mannose
3.
The emprical formula for carbohydrate is
a)
CH2O
b)
CHO
c)
(CH2O)n
4.

Define ketose sugar

(a)  

5.
Sucrose is made up of
a)
Glucose and Glucose
b)
Glucose and Galactose
c)
Glucose and Fructose
d)
Glucose and mannose
6.

The sugar present in Cell Wall

(a)  

7.

Milk sugar is

(a)  

8.
The sugar present in Beans
a)
Stachyose
b)
Sucrose
c)
Lactose
d)
Starch
9.
Acid is a
a)
Proton acceptor
b)
Proton donar
c)
Low H+ ions
10.
Buffer is
a)
Agent that changes pH
b)
Conjugate acid-base pair
c)
Dissociates completely into its ions
11.
The sugar present in Nucleic acid is
a)
Ribulose
b)
Xylose
c)
Ribose
d)
Glucose
12.
Carbohydrates provides C skelelton to other biomolecules
a)
True
b)
False
13.
At half the titration, pH=
a)
H+ ion
b)
OH ion
c)
pKa
14.
All monosacahrides are non reducing sugars
a)
True
b)
False
15.
Lactose on hydrolyzing gives
a)
2 units of Glucose
b)
Glucose and Galactose
c)
Glucose and Fructose
16.
The solution having pH= 10 is said to be
a)
Acidic
b)
Basic
c)
Neutral
17.
The scientist who gave the ring structure of Carbohydrates is
a)
Hawoth
b)
Fischer
c)
Henderson
d)
Hasselback
18.
The ring structure is formed due to the reaction between alcohol and aldehyde group in a carbohydrates resulting in formation of
a)
Hemi acetal
b)
Hemi ketal
c)
Carboxylic acid
19.
At pH less than 7,
a)
H+>OH- ions
b)
H+=OH ions
c)
H+<OH- ions
20.
pH=pKa was given by
a)
Hawoth
b)
Fischer
c)
Henderson-Hasselback
21.
Polysaccharides are
a)
Soluble and tasteless
b)
Crystalline and Sweet
c)
Insoluble and tasteless
d)
Powdery and soluble
22.
Starch, Cellulose and Glycogen are example of
a)
Disaccahrides
b)
Polysaccharides
c)
Monosaccahrides
d)
Trisaccharides
23.

Carbohydrates are also called as

a)

Proteins

b)

Fatty acids

c)

Sugars

d)

aminoacids

24.

The element _______is found in all of the organic compounds.

a)

Iron

b)

Carbon

c)

Nitrogen

d)

Oxygen

25.

Monosaccharides are monomers of

a)

Lipids

b)

Nucleic Acids

c)

Proteins

d)

Carbohydrates

26.

The main function of a carbohydrate is

a)

long term energy storage

b)

stores genetic information

c)

short term energy storage

d)

regulates and controls all body proccesses

27.

What suffix (word ending) is used in the names of most carbohydrates?

a)

-ase

b)

-yme

c)

-ose

d)

-nic

28.
Which health problems is a consequence of eating too much added sugar? 
a)
overweight
b)
heart disease
c)
diabetes
d)
all of the above
29.

The categories of carbohydrates based on sugar units are

a)
Monosaccharide, disaccharide, polysaccharide
b)

Aldose and Ketose

c)

triose, tetrose, pentose, hexose

d)
There are no categories of carbohydrates
30.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
31.
How many sugar units make up monosaccharides?
a)
one
b)
two
c)
three
d)
zero
32.
What molecule is this
a)
sucrose
b)
protein
c)
glucose
d)

Galactose

33.
How do the number of H atoms compare to the number of O atoms in a carbohydrate?
a)
There are TWICE as many H
b)
They are the same amount
c)
There are THREE times as many H
d)
There are TWICE as many O
34.

identify the tetrose

a)

Dihydroxy acetone

b)

Erythrose

c)

Mannose

d)

Fructose

35.

Identify the Sugar

a)

Glucose

b)

Mannose

c)

Ribose

d)

Galactose

36.

Chemically sugars are called

a)

Hydrates of carbon

b)

Sugars

c)

Polyhydroxy aldehyde or keto

37.

Benedict Test uses the (a)   property of sugar

38.

Oligosaccharides can be hydrolyzed by ....................... and ..............

a)

Acids and enzymes

b)

Water

c)

Heat

d)

Alcohol

39.

Which is a true statements

a)

Oligosaccharides are made up of 50 sugar units

b)

Monosaccharides contain two sugars

c)

Polysaccharides are polymers of monomers

40.

The ratio of concentrations of products to reactants is called

a)

Kc

b)

pH

c)

pOH

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