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WorksheetsBiochemistry Intro
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Biology starts at the level of ___________ and moves through the study of biospheres.
a)
atoms
b)
cells
c)
organs
d)
organisms
2.
The basic building blocks of matter
a)
atoms
b)
elements
c)
molecules
d)
organisms
3.
What are the 3 subatomic particles?
a)
Protons, Electrons, Neurons
b)
Neutrons, Protons, Electrons
c)
Solids, Liquids, Gases
d)
Quarks, Bosons, Positrons
4.
Which of the following has a positive charge?
a)
Proton
b)
Neutron
c)
Electron
d)
Ion
5.
Which of the following has a negative charge?
a)
Electron
b)
Proton
c)
Neutron
d)
Ion
6.
A section of the Periodic Table of Elements is provided. What is the chemical symbol for magnesium?
a)
12
b)
Mg
c)
24.31
d)
Magnesium
7.
A group of two or more atoms that are bonded together
a)
elements
b)
isotopes
c)
molecules
d)
essential elements of life
8.
What is the correct chemical formula for water?
a)
H2O
b)
HO2
c)
H2O2
d)
2H1O
9.
What are the bonds called between a slightly positive hydrogen in a polar molecule and a negatively charged atom?
a)
Hydrogen Bonds
b)
Water Bonds
c)
Covalent Bonds
d)
Bail Bonds
10.
Which term corresponds with the definition, "A substance that is dissolved"?
a)
Solute
b)
Concentration
c)
Mixture
d)
Solvent
11.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-20
12.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
13.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
14.
What are the products of the chemical reaction pictured?
a)
CH4 and CO2
b)
CH4 and O2
c)
CO2 and H2O
d)
O2 and H2O
15.
This is used to represent the number of each atom being represented.
a)
A Exponent
b)
The Coefficient
c)
A Molecule
d)
The Subscript
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