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cells
Cells
| Question | Answer |
|---|---|
| Golgi Apparatus | An organelle in eukaryotic cells consisting of stacks of flat membranous sacs that modify, store, and route products of the endoplasmic reticulum. |
| Lysosome | membrane-bound sac containing digestive enzymes that can break down proteins, nucleic acids, and polysaccharides |
| Phagocytosis | process in which phagocytes engulf and digest microorganisms and cellular debris |
| Vacuole | cell organelle that stores materials such as water, salts, proteins, and carbohydrates |
| Mitochondria | Powerhouse of the cell, organelle that is the site of ATP (energy) production |
| Chloroplast | plastid containing chlorophyll and other pigments |
| Microtubule | straight, hollow tube of proteins that gives rigidity, shape, and organization to a cell |
| Centrosome | small region of cytoplasm adjacent to the nucleus |
| Centriole | organize the spindle fibers to separate chromosomes during animal cell mitosis |
| Cilia | short structures projecting from a cell and containing bundles of microtubules that move a cell through its surroundings or move fluid over the cell's surface |
| Flagella | whiplike tails found in one-celled organisms to aid in movement |
| Cell Wall | a thin membrane around the cytoplasm of a cell |
| active transport | energy-requiring process in which transport proteins bind with particles and move them through a cell membrane |
| enzyme | type of protein that regulates nearly all chemical reactions in cells |
| osmosis | a type of passive transport that occurs when water diffuses through a cell membrane |
| passive transport | movement of substances through a cell membrane without the use of cellular energy; includes diffusion, osmosis, and facilitated diffusion |
| cell membrane | protective outer covering of all cells that is made up of a double layer of fatlike molecules and regulates the interaction between the cell and the environment |
| cell theory | states that all organisms are made up of one or more cells, the cell is the basic unit of life, and all cells come from other cells |
| cytoplasm | constantly moving, gel-like mixture inside the cell membrane that contains heredity material |
| endoplasmic reticulum | cytoplasmic organelle that moves materials around in a cell and is made up of a complex series of folded membranes; can be rough or smooth |
| host cell | living cell in which a virus can actively reproduce or in which a virus can hide until activated by environmental stimuli |
| nucleus | organelle that controls all the activities of a cell and contains hereditary material made of proteins and DNA |
| organ | structure, such as heart, made up of different types of tissue that all work together |
| organelle | structure in the cytoplasm of a eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances |
| ribosome | small structure on which cells make their own proteins |