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8A Chemistry of Life

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Matter is made of

a)

cells

b)

atoms

c)

tissue

d)

organelles

2.

What is the term for combining TWO or more atoms together?

a)

element

b)

atom

c)

molecule

d)

compound

3.

What is the term for combining 2 or more DIFFERENT atoms together?

a)

atoms

b)

molecules

c)

elements

d)

compounds

4.

Every compound is a molecule but not every molecule is a compound.

a)

True

b)

False

5.

What is the difference between a carbohydrate and a lipid?

a)

lipids are quick energy and carbs are long term energy

b)

lipids build muscle and carbs produce fats

c)

carbs are sugars and lipids are fats

6.

The movement of particles from regions of higher concentration to regions of lower concentration.

a)

endocytosis

b)

exocytosis

c)

homeostasis

d)

diffusion

7.

The matter that you encounter every day, both living and nonliving, is made up of basic particles called

a)

cells

b)

atoms

c)

tissues

8.

A molecule is a group of atoms that are held together by chemical bonds.

a)

True

b)

False

9.

A _ is made of two or more atoms of different elements that are chemically combined.

a)

nucleus

b)

proton

c)

compound

10.
A substance consisting entirely of one type of atom
a)
compound
b)
atom
c)
molecule
d)
element
11.
Smallest unit of most compounds
a)
element
b)
bond
c)
atom
d)
molecule
12.
What are the four elements that all life is made up of?
a)
Hydrogen, Oxygen, Nitrogen and Carbon
b)
Helium, Oxygen, Neon and Carbon
c)
Hydrogen, Titanium, Carbon, Nitrogen
d)
Oxygen, Chlorine, Iron, Nitrogen
13.
What is the smallest unit of matter that cannot be broken down by chemical means?
a)
Atom
b)
Element
c)
Ion
d)
Isotope
14.
Examples of these biomolecules are DNA and RNA...
a)
Nucleic Acids
b)
Carbohydrates
c)
Lipids
d)
Proteins
15.
What are the four main types of molecules found in the cells of living things?
a)
carbohydrates, lipids, nucleic acids, and proteins
b)
lipids, nutrients, nucleic acids, and carbon dioxide
c)
carbon dioxide, hydrogen, oxygen, and various salts
d)
atoms, molecules, chemical compounds, and carbohydrates