Name:    Hour: 
 


Chapter 4.1 & 8.2

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
nar001-1.jpg
 

 1. 
The most abundant atoms in living organisms are:
a.
carbon, oxygen, and hydrogen.
c.
carbon, oxygen and nitrogen.
b.
sulfur and nitrogen.
d.
oxygen and phosphorus.
 

 2. 
Figure 1 shows a chemical reaction. In this chemical reaction, glucose is:
a.
a product.
c.
a form of energy.
b.
a reactant.
d.
a lipid.
 

 3. 
Figure 1 shows what chemical reaction?
a.
Cellular Respiration
c.
Krebs Cycle
b.
Photosynthesis
d.
Symbiosis
 

 4. 
The following diagram represents the following EXCEPT:
mc004-1.jpg
a.
water.
c.
a compound.
b.
a molecule.
d.
an element.
 

 5. 
Which equation below represents photosynthesis?
a.
CO2 + H2O ------>  C6H12O6 + O2
b.
C6H12O6 + O2  ------> CO2 + H2O
 

 6. 
A ____ is a group of two or more atoms joined together chemically.
a.
cell
b.
solution
c.
light ray
d.
molecule
 

 7. 
The process of rearranging atoms in one substance into a new substance is called a:
a.
production.
b.
chemical reaction.
c.
compound.
d.
solution.
 

 8. 
A(n) ____ is the simplest form of matter.
a.
cell
b.
element
c.
molecule
d.
compound
 

Matching
 
 
a.
atom
f.
photosynthesis
b.
compound
g.
pigment
c.
chemical reaction
h.
cellular respiration
d.
element
i.
chlorophyll
e.
molecule
 

 9. 

 a process that rearranges the atoms of one or more substances into one or more new substances
 

 10. 

 a substance that contains two or more different elements that are chemically joined
 

 11. 

 the smallest particle of an element that keeps the chemical identity of that element.
 

 12. 

 a process where plants use the energy of sunlight to produce carbohydrates
 

 13. 

 a molecule that absorbs some colors of light and reflects others
 

 14. 

 a group of two or more atoms joined together chemically
 

 15. 

 the main pigment used in photosynthesis that absorbs blue and red light and reflects green light.
 

 16. 

 the simplest form of matter
 

 17. 

 the process in which the chemical bonds of energy-rich molecules are converted into a form of energy that cells can use.
 



 
         Start Over