Page 70 - Science Course 1 (Book 1)
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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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