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Chapter7Biology
| Question | Answer |
|---|---|
| Cells | the basic units of life |
| Cell Theory | a fundemental concept of biology |
| Nucleus | a large memrane-nclosed structure that contains that contains the cells genetic code in the form of DNA |
| Eukaryotes | cells that contain nuclei |
| Prokaryotes | cells that do not contain nuclei |
| Organelles | specialized organs |
| Cytoplasm | portion of the cell outside the nucleus |
| Nuclear Envelope | outer wall of a nucleus with pores |
| Chromatin | the granual material you can see in the nucleus |
| Chromosomes | when a cell divides chromatin condenses is formed |
| Nucleolus | a small dense region located in the nucleous |
| Ribosomes | small particles of RNA and protein |
| Endoplasmic Reticulum | an internal membrane system |
| Golgi Apparatus | an organelle |
| Lysosomes | small organelles filled with enzymes |
| Vauoles | store materials such as water etc |
| Mitochondria | organelles that convert energy stored in food to compounds that are easier for the cell t use |
| Chloroplasts | organelles that capture the energy from sunlight |
| Cytoskeleton | give the cell its shape and structure |
| Centrioles | located near the nucleus to help organize cell division |
| Cell Membrane | a thin layer on the outside of every cell that makes a wall |
| Cell wall | another layer outside the cell membrane that is hard |
| Lipid Bilayer | the copsition of almost all cell membranes is the double layered sheet |
| Concentration | the mass of solute in a given volume of solution |
| Diffusion | when the concentratoin of a solute is the same throughout the system |
| Equilibrium | " " |
| Osmosis | the diffusion of water through a selectively permeable membrane |
| Isotonic | when they're both the same strength |
| Hypertonic | above strength |
| Hypotonic | below strength |
| Endocytosis | the process of taking material into the membrane |
| Phagocytosis | extensions of cytoplasm surround a particle and package it within a food vacule |
| Pinocytosis | process to form vacuoles inside a cell |
| Exocytosis | the process to release large amounts of material from the cell |
| Cell specialization | the process in which certain cells take on certain tasks |
| Tissue | A GROUP OF SMALLER CELLS THAT PERFORM A PARTICULAR FUNCTION |
| Organ | a group of tissues that work together |
| Organ System | a group of organs that work together |
Created by:
chaka987
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