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Ch.7Vocabpt.1
Chapter 7 vocab words
| Question | Answer |
|---|---|
| cell | collection of living matter enclosed by a barrier that seperates the cell from its surroundings basic unit that forms life |
| cell theory | idea that all living are composed of cells cells are the basic of structure and function in living things and new cells are produced from living cells |
| nucleus | the center of the atom in which protons and nuetrons |
| eukaryotes | organisms whose cells contain nuclei |
| prokaryotes | cells that dont contain nuclei |
| organells | liitle organs |
| cytoplasm | is the portion of the cell outside the nuclei |
| nuclear envelope | it surrounds the nucleus |
| chromatin | the granual material you can see in the nucleus |
| chromosomes | threadlike structures that contain the genetic info that is passed from one generation to another |
| nucleous | dense region in the nucleus |
| ribosomes | small particles in rna and protein found throughout the cyptoplasm |
| endoplasmic reticulum | eukaryote cells also contain an internal mambrane system |
| golgi apparatus | protiens produced in the rough ER move next to an organelle |
| lysomes | small organelles filled with enzymes |
| vaculoes | store materials such a swater salts proteins and carbohydrates |
| mitochondria | are organelles that convert the chemical energy stored in food into compounds that are more convinient for the cell to use |
| chloroplasts | are organelles that capture the energy from sunlight and convert it into the chemical energy in a process called photosyntheisis |
| cytoskeleton | eukaryotic cells are given their shape and internal orginizations by supporting structure |
| centrioles | are located near the nucleus and help organize cell division |
| cell membrane | all cells surrounded aby a thick flexible layer |
| cell wall | a strong supporting layer covering the cell |
| lipid bilayer | the compoition of nearley all cell membranes is a double layered sheet |
| concetration | the concentration of a solution is the mass solute given volume of a solution |
| diffusion | when the particles tend to move to an area where they are less concentrated |
| equilibrium | when the concentration of the solute is the same throughout a system the system |
| osmosis | water passes quite easily across most membranes |
| istonic | when two solutions are the same strength |
| hypertonic | means above strength |
| hypotonic | below strength |
| facilitated | or to help diffuse the glucose |
| diffusion | hundreds of different proteins chgannels that have been found |
| active transport | cells sometimes must move materials in opposite direction |
| endocytosis | is the process of taking material into the cell |
| phagocytosis | extensions of cyptoplasm surround a particle and package it within food. |
Created by:
mihaeljolas
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