Page 70 - Science Course 1 (Book 1)
P. 70
The Cell Theory Mo3-L2a: What Make Up a Cell?
Lesson 2
Nucleic Acid
a macromolecule that forms when long chains
of molecules called nucleotides join together.
In this topic, you will learn the following
lessons:
Mo. 3 - L2: What Make Up a Cell?
Mo3-L2a What Make Up a Cell? Adenine Guanine
KEY CONCEPTS:
1. How did scientist’ understanding of cell cells
develop?
2. What basic substances make up a cell?
Thymine Cytosine
Vocabulary A-Z Protein
Let us learn some vocabulary a long chain of amino acid molecules contains
carbon, hydrogen, oxygen, nitrogen, and sometimes
sulfur H
Cell Theory
the theory that states that all living things are made H H
of one or more cells, the cell is the smallest unit of O
life, and all new cells come from preexisting cells.
HUMAN CELLS N C C
O
H
R
Lipid
a large macromolecule that does not dissolve in
water
CH3 O
CH3
H
Macromolecule H
substance that forms from joining many small
molecules together. HO H
Carbohydrate
a macromolecule made up of one or more sugar
Sugar polysaccharide molecules, which are composed of carbon, hydrogen,
and oxygen; usually the body’s major source of
energy.
CH2OH
Amino Acid Protein H O H
H
OH
nucleic acid OH OH
Nucleaotide H
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