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Cell Structure is bb
Cell Structure
| Question | Answer |
|---|---|
| Cells | Basic Unit of life |
| Cell theory | A Fundamental concept of bioligy |
| Nucleus | a large membrane enclosed structure that contains the cells genetic material in the form of DNA |
| Eukaryotes | Cells that contain Nuclei |
| Prokaryotes | Cells w/o nuclei |
| Organelles | Small organs inside cells |
| Cytoplasm | The portion of the cell outside the nucleus |
| Nuclear Envelope | is composed Composed of two membranes |
| Chromatin | The granular material in the nucleus |
| Chromosomes | Distinct threadlike structures that contain gentic imformation |
| Nucleolus | the small dense refion in nuclie |
| Ribosomes | Small particles of RNA and protein found throught the cytoplasm |
| Endoplasmic Reticulum | An internal membrane systm, ER is the site where libids are assembled along with protein and other materuals that are exported from the cell |
| Golgi apparatus | where proteins in the ER transfered to, Golgi apparatus modifies sorts and packages the proteins |
| Lysosomes | Small oorganelles filled with enzymes |
| Vauols | Store materuals in plant cells |
| Mitochondria | Organelles that convert the chemical energy in food into compounds that are more convient for the cell to use |
| Chloroplasts | Organelles that capture the energy from sunlight and convert it into chemical energy through Photosynthesis |
| Cytoskeleton | The supporting structure that gives plant cells their shape |
| Centrioles | located near the nucleus and help to organize cell divisions not found in plant cells |
| Cell membrane | a thin flexible barrior that surrounds cells |
| Concentration | The mass of the solute in a given volume of solution |
| diffusion | whre solute moves from more concentrated to less concentrated area |
| Cell wall | strong supporting layer around the membrane |
| Libid bilayer | double layer sheet that forms the core of nearly all cell membranes |
| equilibrium | when the concentration of a solution is equal throught |
| osmosis | diffusion of water through a selectively pernable membrane |
| isotonic | when the concentrations are the same on both sides of the meembrane |
| hypertonic | the more concentrated part on eiter side of the membrane |
| hypotonic | the less strenth solotion on either side of the membrane |
| facilitaed diffusion | movement of specific molecules across the cell membrane through protein channels |
| active transport | when materials move matrial in oppostie direction |
| Endocytosis | the process of taking materia; into the cell by means of infoldings or pockets of the cewll membrane |
| phagocytosis | extensions of cytoplasm surround a particle and package it with in a food vacule |
| pinocytosis | tiny pockets form along the cell membrane fill with liquid and pinch off to form vacules |
| exocytosis | the membrane of the vacule surrounding the material fuses with the cell membrane forcing the contents out of the cell |
| cell specialization | cells through out an organisms can develope in different ways to perform differrent tasks |
| tissue | group of cells that perform a particular fuction |
| organ | many groups of tssues that work together |
| organ stystem | many groups of organisms that perorm a specific task |
Created by:
Evancarter
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