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Chapter 2

7th science How Cells Function

basic units of life cells
some cells have __________ that perform special functions for the cell organelles
have cell walls and chloroplasts plant cells
all living and non living matter can be broken down into basic substances called ______ elements
cells needthis to sustain life energy
smallest unit of any element atom
bonds between atoms are broken and new bonds form to make different molecules chemical reaction
cells use __________ for life activities chemical energy
Simple carbohydrates are sugar molecules.
Lipids provide energy and give structural support
____ carry out most of the chemical activity in cells Proteins
Long chains of sugar molecules form more ______, such as starch & cellulose complex carbohydrates
store and translate the instructions for the maintenance, growth, and reproduction of a cell Nucleic acids
Created by: fhershey