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Science AP 10
Study for science AP10
| Question | Answer |
|---|---|
| Cell theory | The theory that states that all living things are made of one or more cells, the cell is the smallest unit of life, and all new cells come from preexisting cells |
| Macromolecule | Substance that forms from joining many molecules together |
| Nucleic acid | A macromolecule that forms when long chains of molecules called nucleotides join together |
| Protein | A long chain of a minor acid molecules; contains carbon, hydrogen, oxygen, nitrogen and sometimes sulfur |
| Lipid | A large macromolecule that does not dissolve in water |
| Carbohydrate | A macromolecule made of one or more sugar molecules, which are composed of carbon, hydrogen, and oxygen; usually the body's major source of energy |
| Cell membrane | A flexible covering that protects the inside of a cell from the enviroment outside the cell |
| Cell wall | A stiff structure outside the cell membrane that protects a cell from a attack by viruses and harmful organisms |
| Cytoplasm | The lipid part of a cell inside the cell membrane; contains salt and other molecules |
| Cytoskeleton | A network of threadlike proteins joined toghether that |
| Organelle | Membrane surrounded component of a eukaryotic cell with a specialized function |
| Necleus | Part ofa eukaryotic cell that directs cell acrivity and contains genetic information stored in DNA |
| Chloroplast | A membrane-bound organelle that uses light energy and makes food-a sugar called glucose-form water and carbon dioxide a process known as photosynthesis |
| Passive transport | The movement of substances through a cell membrane without using the cell's energy |
| Diffusion | The movement of substances from an area of higherconcentration to an area of lower concentration |
| Osnosis | The diffusion of water molecules only through a membrane |
| Focilitaded diffusion | The process by which molecules pass through a cell membrane using special proteins called transport protein |
| Actice transport | The movement of substances through a cell membrane using the cell's energy |
| Endocytosis | The processduring which a cell takes in a substance by surrounding it with the cell membrane |
| Exocytosis | The process during which a cell's vesicles release their contents outside the cell |
| Cellular respiration | A series of chemical reactions that convert the energy in food molecules into a usable form of energy called ATP |
| Glycolysia | A process by which glucose, a sugar, is broken down into smaller molecules |
| Femenation | A reaction that eukaryotis and prokaryotic cells can use to obtain energy frome food when oxygen levels are low |
| Photosynthesis | A series of chemical reactions thar convert light energy, water, and CO2 into the food-energy molecule glucose and give off oxygen |