WorksheetsBasic chem and Biomolecules
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What makes a molecule polar?
a)
Equal sharing of valence electrons
b)
Unequal sharing of valence electrons
c)
Stealing of electrons
d)
Temporary charges that come and go
2.
Covalently bonded molecules are made of atoms that
a)
share electorns
b)
shoot their electrons out into space
c)
move their electrons to the nucleus of the atom
d)
give electrons to and accept electrons from each other
3.
Ionically bonded compounds are made of atoms that
a)
share electrons
b)
shoot their electrons out into space
c)
move their electrons to the nucleus of the atom
d)
give electrons to and accept electrons from each other
4.
Because water has a positively charged end and a negatively charged end, it can be described as
a)
amphipathic
b)
hydrophobic
c)
polar
d)
nonpolar
5.
Which of the following is correctly defined as the attraction of the hydrogen from one molecule to the oxygen of a different molecule?
a)
amphipathic
b)
hydrophobic
c)
hydrogen bonding
d)
adhesion
6.
Water molecules require a lot of energy to separate one from the others. This gives water a high
a)
density
b)
polarity
c)
solvency
d)
specific heat
7.
If an atom has an equal amount of Protons and electrons, what will its’ charge be?
a)
Positive
b)
Negative
c)
Neutral
d)
Infinite
8.
What molecule may be formed by dehydration synthesis of fatty acid molecules and glycerol molecules?
a)
protein
b)
lipid
c)
carbohydrate
d)
nucleic acid
9.
Proteins are synthesized from less complex organic compounds known as
a)
starches
b)
amino acids
c)
enzymes
d)
carbons
10.
These organic molecules are used by the body to build structures and carry out metabolism.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
11.
These organic molecules are used by the body to store and release energy.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
12.
These organic molecules are used by the body to store the genetic code.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
13.
These organic molecules are used by the body for long term storage of energy and make up the structure of cell membranes.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
14.
Sugars (glucose) and starch are examples of this organic molecule:
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
15.
Nucleotides and DNA are examples of this organic molecule:
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
16.
Fatty acids such as butter and oils and phospholipids are examples of this organic molecule:
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
17.
Which of the following is the correct pH scale?
a)
0 to 7
b)
0 to 14
c)
7 to 14
d)
0-100
18.
Is the following an Acid or a Base?
a substance has a pH of 2
a substance has a pH of 2
a)
Acid
b)
Base
19.
Sugars usually end in....
a)
-ose
b)
-ace
c)
-ats
d)
-ids
20.
What is it called when you create a water molecule to make a bigger polymer?
a)
Dehydration Sythesis
b)
Hydrolosis
c)
polymer
d)
inorganic process
100 %
