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Biomolecules and intermolecular forces

Total questions: 45

Worksheet time: 44mins

Name
Class
Date
1.
Carbohydrates are comprised of Carbon, Hydrogen, Oxygen, and Nitrogen
a)
True
b)
False
2.
A single unit of sugar is referred to as:
a)
Monosaccharide
b)
Monocarbohydrate
c)
Mononutrient
d)
Monopolymer
3.
Carbohydrates yield how many Calories per gram?
a)
0 Cal/gram
b)
9 Cal/gram
c)
4 Cal/gram
d)
2.25 Cal/gram
4.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
5.

Lactose is composed of

a)

glucose + fructose

b)

glucose + glucose

c)

glucose + sucrose

d)

glucose + galactose

6.
The bond that joins amino acids are called:
a)
Peptide Bonds
b)
Ester Bonds
c)
Glycosidic Linkages
d)
Phosphodiester Bonds
7.

If a methyl group (-CH3), which does not like water, were at the 'R', the amino acid would likely be:

a)

Hydrophobic

b)

Hydrophilic

c)

Ionic

d)

Acidic

8.
The diagram shows a bond forming between two amino acids. What is the name of this reaction?
a)
Dehydration Synthesis
b)
Hydrolysis
c)
Pepysis
d)
Oxidation
9.
The number of amino acids used to produce proteins for all living things is:
a)
20
b)
∞
c)
15
d)
42
10.
What are the building blocks of proteins?
a)
amino acid
b)
fatty acid
c)
nucleotide
d)
lipid
11.
Non-meat examples of protein include
a)
broccoli, kale, carrots
b)
beans, legumes, eggs
c)
tofu, apples, spinach
12.

Which of the following bond(s) do(es) NOT exist in a secondary structure?

a)

Peptide bond

b)

Hydrogen bond

c)

Ionic bond

13.

The difference between tertiary and quartenary structure is:

a)

Tertiary structure has double bond whereas quartenary structure does not have double bond

b)

Tertiary structure consists of one polypeptide chain whereas quartenary structure consists of more than one polypeptide chains

c)

Tertiary structure is fibrous whereas quartenary structure is globular

d)

Tertiary structure is water-soluble whereas quartenary structure is lipid soluble

14.

The repeating units of protein are

a)

Amino acids

b)

Glucose

c)

Fatty acid

d)

Peptides

15.

During the formation of the peptide bond which of the following takes place?

a)

Hydroxyl group is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid

b)

Hydrogen atom is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid

c)

Hydroxyl group is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid

d)

Hydrogen atom is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid

16.

Tertiary structure is formed due to

a)

interaction between the functional groups of different amino acids within a polypeptide chain

b)

interaction between the side chain of different amino acids within a polypeptide chain

c)

interaction between the functional groups of different amino acids between two polypeptide chains

d)

interaction between the side chain of different amino acids between two polypeptide chains

17.

Haemoglobin is a quartenary protein because;

a)

It has more than one peptide bonds

b)

Its shape is globular

c)

It consists of more than one polypeptide chains

d)

It has iron in each heme group

18.

Based on the diagram, the side chain of amino acid alanine is;

a)

NH2

b)

COOH

c)

H

d)

CH3

19.
What is the NH2 (nitrogen-containing) group on this amino acid called?
a)
amino group
b)
R group
c)
carboxyl group
20.
Identify the element found in a protein that is not present in a carbohydrate
a)
Carbon
b)
Oxygen
c)
Hydrogen
d)
Nitrogen
21.
What is a type of protein that speeds up chemical reactions?
a)
sucrose
b)
insulin
c)
enzyme
d)
antibodies
22.
Choose the protein
a)
C5H12O6 
b)
C6H12O6 
c)
C3H7NO2 
d)
C26H65O3 
23.
A monomer splits from a polymer through
a)
ATP synthesis
b)
monomerization
c)
hydrolysis
d)
condensation reaction
24.
This polysaccharide is important to the structure of plant cell walls, 
a)
Starch
b)
Glycogen
c)
Cellulose
d)
Chitin
25.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
26.
The 3 categories of carbohydrates are:
a)
Monosaccharide, disaccharide, polysaccharide
b)
glucose, fructose, galatose
c)
starch, cellulose, chitin
d)
There are no categories of carbohydrates
27.
What molecule is this
a)
sucrose
b)
protein
c)
glucose
d)
cellulose
28.

What type of bond is formed between two monosaccharides?

a)

Ester bond

b)

Glycosidic bond

c)

Peptide bond

d)

Double bond

29.
What monosaccharide is found in fruit and honey? 
a)
fructose 
b)
sucrose 
c)
glucose 
d)
lactose 
30.
Animals store glucose in the form of
a)
cellulose
b)
glycogen
c)
starch
d)
chitin
31.

Which of these are examples of Lipids?

a)

simple sugars

b)

complex carbohydrates

c)

fats, oils, & waxes

d)

hair, skin, & nails

32.

Which is an example of a lipid?

a)

candy

b)

olive oil

c)

meat

d)

DNA

33.
The characteristic that all lipids have in common is----
a)
made of lots of double bonds
b)
acidic when mixed with water
c)
no high energy content
d)
do not dissolve in water
34.

Saturated fats are __________ at room temperature.

a)

liquid

b)

solid

35.

Fats and oils: a major source of food providing long term energy and other functions.

a)

Sugars

b)

Carbohydrates

c)

Lipids

d)

Proteins

36.
What is the monomer of nucleic acids?
a)
Glycerol
b)
Monosaccharides
c)
Amino Acids
d)
Nucleotides
37.
Which of the following elements does a Nucleic Acid have that a Carbohydrate and Lipid do not?
a)
Carbon
b)
Oxygen
c)
Hydrogen
d)
Nitrogen
38.
What pentose sugar does DNA use?
a)
Ribose
b)
Sucrose
c)
Amylose
d)
Deoxyribose
39.
The backbone of DNA is made up of _______ & ________ units. 
a)
sugar & base
b)
sugar & phosphate
c)
base & phosphate
d)
phosphate & phosphate
40.

Which base is only found in RNA?

a)

Uracil

b)

Thymine

c)

Adenine

d)

Guanine

41.
What explains the very high melting and boiling point of water
a)
Strong dipole-dipole bonds between water molecules
b)
Strong hydrogen bonds between water molecules
c)
Dispersion forces which are present in all molecules
d)
Asymmetrical shape of the polar bonds.
42.

Intermolecular forces for: NH3

a)

Dispersion Force

b)

Dipole dipole

c)

Hydrogen bonding

43.

The weaker the intermolecular forces of a substance the _____________ the boiling point

a)

higher

b)

lower

44.
Which of the following molecules contains only London dispersion forces?
a)
CF4
b)
HCl
c)
H2O
d)
MgO(aq)
45.
Which of the following molecules has hydrogen bonding?
a)
HCl
b)
HI
c)
HF
d)
HBr

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