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lesson 11.1
| Term | Definition |
|---|---|
| cell theory | states that all living things are made up of one or more cells, the cell is the smallest unit of life, and all new cells come from preexisting cells |
| macromolecule | form by joining many small molecules |
| nuclei acid | are molecules that form when long chains of molecules called nucleotides join together |
| protein | are long chain of amino acid molecules |
| lipid | is a large macromolecule that does not dissolve in water |
| carbohydrate | one sugar molecule, two sugar molecules, or a long chain of sugar molecules make up carbohydrates |
| cell membrane | is a flexible covering that protects the inside of a cell from the environment outside a cell |
| cell wall | a stiff structure outside the cell membrane |
| cytoplasm | a fluid inside a cell that contains salts and other molecules |
| cytoskeleton | is a network of threadlike proteins that are join together |
| organelle | other structures which have specialized functions, most organelles are surrounded by membranes |
| nucleus | is the part of a eukaryotic cell that directs cell activities and contains genetic information stored in DNA |
| chloroplast | are membrane-bound organelles that use light energy and make food---a sugar glucose---from water and carbon dioxide in a process known as photosynthesis |
Created by:
spiveshy5637
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