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Chemistry of Life

Total questions: 47

Worksheet time: 24mins

Name
Class
Date
1.
Which is NOT one of the four elements that make up over 90% of the human body
a)
Carbon
b)
Nitrogen
c)
Chlorine 
d)
Oxygen
2.
Which of the following is NOT true of atoms?
a)
They are composed of molecules.
b)
They can combine with other atoms.
c)
They make up elements
d)
They are extremely small
3.
A negatively charged particle moving around the nucleus of an atom
a)
neutron
b)
proton
c)
electron 
d)
ion
4.
What particle is found in the nucleus and has no charge?
a)
electron
b)
neutron
c)
proton
d)
atom
5.
An atom becomes negatively charged by
a)
gaining an electron
b)
losing an electron
c)
losing a proton
gaining a neutron
6.
The space surrounding the nucleus of an atom contains
a)
protons
b)
electrons
c)
neutrons
d)
ions
7.
Number of protons that an atom has
a)
Atomic symbol
b)
Atomic Number
c)
Atomic Mass
d)
Mass Number
8.
Atoms having the same number of protons but different numbers of neutrons
a)
molecule
b)
atom
c)
compound
d)
isotopes
9.
Two or more atoms combined
a)
Molecule
b)
Compound
c)
Isotope
d)
Ion
10.
Two or more different atoms combined
a)
Molecule
b)
Compound
c)
Isotope
d)
Ion
11.
Bond created by electrical attraction between atoms (+ and -)
a)
Ionic bond
b)
Covalent bond
c)
Hydrogen bond
d)
van der Waals
12.
Attraction between slightly positive atom of one molecule to a slightly negative atom of another molecule 
a)
ionic bond
b)
hydrogen bond
c)
covalent bond
d)
van der Waals
13.
Bond created by the sharing of electrons
a)
Ionic Bond
b)
Hydrogen Bond
c)
Covalent Bond
d)
van der Waals
14.
A charged atoms (caused by gain or loss of electrons)
a)
Ion
b)
molecule
c)
element
d)
compound
15.
Attractions between molecules of the same substance
a)
adhesion
b)
cohesion
c)
mixture
d)
acid
16.
Substances formed by a chemical reaction
a)
products
b)
reactants
c)
coefficients
d)
solution
17.
Who am I? I'm a polymer composed of amino acids that are linked by peptide bonds. Amino acid bonds determine my folds. 
a)
Lipid
b)
Carbohydrate
c)
Protein
d)
Sugar
18.

What makes carbon so important to life?

a)

bonding properties

b)

its place on the Periodic Table

c)

it is a reactant in all chemical reactions

d)

it is an enzyme

19.

What gives water so many important properties for life?

a)

adhesion and cohesion

b)

the amount of carbon in each molecule

c)

energy released exothermically

d)

hydrogen bonds give it polarity

20.

What makes a chemical reaction?

a)

matter is conserved

b)

breaking and forming of chemical bonds

c)

when products form reactants

d)

when you do a lab

21.

What are the smallest basic units of matter?

a)

molecules

b)

atoms

c)

elements

d)

7th graders

22.

Which of the following solutions has the highest Hydrogen ion concentration?

a)

a solution with a pH of 1

b)

a solution with a pH of 4

c)

a solution with a pH of 7

d)

a solution with a pH of 10

23.

What are the 4 types of carbon-based molecules in organisms?

a)

carbohydrates, lipids, fatty acids, and monomers

b)

polymers, monomers, acids, bases

c)

adhesion, cohesion, evaporative cooling, and high specific heat

d)

nucleic acids, proteins, lipids, and carbohydrates

24.

What are proteins made of?

a)

amino acids

b)

monosaccharides

c)

nucleic acids

d)

fatty acids

25.

Which carbon-based molecule includes sugar and starches?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

26.

What is the primary function of DNA?

a)

to make nucleic acids

b)

long term energy storage

c)

store genetic information

d)

to function as RNA

27.

What are the products in this chemical reaction?

a)

calcium and oxygen

b)

Ca and CaO

c)

2Ca and O2

d)

2CaO

28.

The building blocks of most living things contain the element

a)

carbon

b)

nitrogen

c)

calcium

d)

sodium

29.

Which Major Class of Bio-molecule is this?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

30.

What is this specific type of molecule?

a)

monosacharide

b)

nucleotide

c)

triglyceride

d)

amino acid

31.

What is this molecules function in the body?

a)

energy storage

b)

cellular energy

c)

energy transfer molecule

d)

information storage

32.

Which Major Class of Bio-molecule is this?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

33.

Which specific type of Bio-molecule is this?

a)

triglyceride

b)

disacharide

c)

amino acid

d)

ATP

34.

What is the function of this molecule?

a)

cellular energy

b)

energy storage

c)

energy transfer

d)

information storage

35.

Which Major Class of Bio-molecule is this?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

36.

Which Major Class of Bio-molecule is this?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

37.

Which specific type of Bio-molecule is this?

a)

triglyceride

b)

disacharide

c)

amino acid

d)

ATP

38.

What is the function of this molecule?

a)

cellular energy

b)

energy storage

c)

energy transfer

d)

information storage

39.

Which Major Class of Bio-molecule is this?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

40.

Which specific type of Bio-molecule is this?

a)

triglyceride

b)

protein

c)

phospholipid

d)

steroid

41.

What is the function of this molecule?

a)

cell membrane component

b)

energy storage

c)

hormone (cholesterol)

d)

information storage

42.

Which Major Class of Bio-molecule is this?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

43.

Which specific type of Bio-molecule is this?

a)

triglyceride

b)

protein

c)

phospholipid

d)

steroid

44.

What is the function of this molecule?

a)

cell membrane component

b)

energy storage

c)

hormone (cholesterol)

d)

information storage

45.

Which Major Class of Bio-molecule is this?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

46.

Which specific type of Bio-molecule is this?

a)

triglyceride

b)

protein

c)

phospholipid

d)

DNA Nucleotide

47.

What is the function of this molecule?

a)

cell membrane component

b)

energy storage

c)

hormone (cholesterol)

d)

information storage

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