Lesson 2.1: Multiple Choice
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the main element of organic compounds is
carbon
the cell wall of plants is made out of
cellulose
a process that changes some chemical substances into others is a
chemical reaction
water H2O is a
compound
the function of protein can include
helping cells keep their shape helping to destroy foreign substances speeding up biochemical reactions
the characteristics of DNA includes
inherited characteristics are passed from one generation to the next
which category of organic compounds is the major component of cell membranes
lipid
the main difference between saturated and unsaturated fatty acid is
the number of hydrogen atoms bonded to the carbon items
