Term | Definition |
Organelle | A tiny cell structure that carries out a specific function within the cell. |
Cell wall | A rigid layer of nonliving material the surrounds the cells of plants and some other organisms. |
Cell membrane | A cell structure that controls which substances can enter or leave the cell. |
nucleus | A cell structure that contains nucleic acids. |
Cytoplasm | The region between the cell membrane and the nucleus. |
Mitochondria | A rod-shaped cell structure that converts energy in food molecules to energy the cell. can use to carry out its functions. |
Endoplasmic Reticulm | A cell structure that forms a maze of passageways in which proteins and other materials are carried. |
Cell | the basic unit of structure and funtion in living things. |
Microscope | An insturment that makes small objects look larger. |
Cell theory | A widely accepted explanation of the relationship between cells and living things. |
Element | Any substance that cannot be broken down into simpler substances. |
Compound | Two or more elements that are chemically combined. |
Carbohydrate | Energy-rich oranic compound, such as a sugar or a starch that is made of the elements carbon, hydrogen, and oxygen. |
Protein | Large,organic molecule made of carbon,hydrogen,oxygen,nitrogen,and sometimes sulfur. |
Amino acid | A small molecule that is linked chemically to other amino acids to form proteins. |
Enzyme | A type of protein that speeds up a chemical reaction in a living thing. |
Lipid | Energy-rich organic compound,such as a fat, oil,or wax. |
Nucleic acid | Very large organic molecule made of
carbon,oxygen,hydrogen,nitrogen,and phosphorus. |
DNA | Deoxyribonucleic acid; the genetic material that carries info about a organism. |
RNA | Ribonucleic acid; a nucleic acid that plays an important role in the production of production. |
Selectively Permeable | A property of cell membranes. |
Diffusion | The process by which molecules move from an area of higher concentration to an area of lower concentration. |
Osmosis | The diffusion of water molecules. |
Passive transport | The movement of material. |
Active transport | The movement of material. |