Organic Molecules Review Worksheet With Answers - Chapter 2 (2.3 & 2.5)
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Organic Molecules Review Worksheet | Chapter 2 (2.3 & 2.5)
Carbon Based Molecules
1. In terms of science, what does the term “organic” mean? Contains carbon, or carbon based.
2. What is it about Carbon’s atomic structure that makes it “the building block of life”?
It has 4 outer electrons (needs 8 to be full) so it can form up to FOUR BONDS.
3. Name the four different types of organic molecules:
Carbohydrates
Lipids
Proteins
Nucleic acids
4. Define the following and label the following picture:
a.
Monomer: Smaller carbon based sub‐unit
One
Many
b. Polymer: A chain of linked monomers
Monomer
Carbohydrates
5. List the 3 elements that make up carbohydrates:
a.
Carbon
Polymer
b.
Hydrogen
c.
Oxygen
6.
__1__ : ___2___ : __1__
What is the ratio of these elements to one another?
a.
If a carbohydrate had 8 carbon atoms, how many hydrogen & oxygen atoms would this carbohydrate contain?
i.
16 ii. Oxygen: 8
Hydrogen:
7. Fill in the table for the three major polysaccharides and one monosaccharide used in biology:
Type of Carbohydrate
Where found?
Characteristics/Function
Monomer or Polymer?
Sugar or Glucose or Frutose
Plants
Source of energy/food
(Monomer)
Starch
Plants/Animals
Excess plant sugar that gets converted and stored
(Polymer)
Glycogen
Specific starch found in the liver and muscles of
Animals
(Polymer)
animals‐ it is a readily available source of energy
Cellulose
A plant starch found in the cell walls, which help
Plants
(Polymer)
make the plant rigid
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