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Science NOS-3
| Question | Answer |
|---|---|
| biology | the study of life |
| hypothosis | an eductated guess or prediction |
| variables | anything that may effect the outcome of the experiment |
| independant variable | the variable that is being tested |
| dependant variable | the possible result from testing the IV |
| control group | the group that get the normal conditions |
| experimental group | the group that gets tested |
| scientific theory | an explanation of observations or events based on knowledge gained from many experiments |
| scientific law | descibes a pattern or event that occurs in nature that is always true |
| cell | the smallest unit of life |
| homeostasis | the ability to maintain a stable internal envirment regardless of outside conditions |
| asexual reproduction | one parent organism |
| sexual reproduction | two parent organisms |
| unicellular | one cell |
| multicellular | many/multiple cells |
| DNA | hold all gentic information |
| taxonamy | the science of classification |
| scientific name | genus name and species name, identifies the animal |
| dichotomous key | a series of descriptions used to help idenitfy an organism |
| cladogram | a diagram showing relationships among organisms |
| the cell theory | 1. all liing things are composed of one or more cells 2. the cell is the basic unit and stucture among living things 3. all cells come from oter cells |
| prokaryotic | have no nucleus or other membrane bound organelles |
| eukaryothic | have a nucleus and other organelles |
| macromolecules | large substances formed from smaller molecules bonded together |
| carbohydrate | compounds made up of sugars |
| proteins | made up of sub-proteins called amino acids |
| amino acids | 20 different types, proteins |
| enzymes | specialized proteins that speed up chemical reactions |
| hemoglobin | a protein attached to red blood cellls and transport oxygen |
| lipids | fats and oils |
| nucleic acids | made up of subunits called nucleitides |
| cell membrane | surrounds and protects the cell, helps giive it shape and lets certain things in and out of a cell |
| nucleus | the control center of a cell, holds DNA |
| nucleoulus | found inside the nucleaus and produces ribosomes |
| ribosomes | make proteins |
| endoplasmic reticulm | the highway system of a cell |
| smoothe er | no ribosomes, makes lipids and removes harmful materials from the cell |
| rough er | has ribosomes attached to it and makes proteins |
| mitochandria | the powerhouse of a cell |
| golgi complex | the UPS of a cell |
| vacuoles | empty space used for storage |
| lysosomes | the wrecking company of a cell |
| passive transport | movement across the cell membrane that does not require energy |
| active transport | movement across the cell membrane that does require energy |
| diffusion | the movement of materials across the cell membrane from an area of high concentration to lower concentration |
| osmosis | the diffusion of water |
| facilitated diffision | diffusion across the cell membrane with the help of membrane proteins |
| membrane proteins | channel and carrier proteins |
| endocytosis | taking large particles into a the cell |
| exocytosis | expelling large particles out of a cell |
| glycosis | the process in which glucose is broken down into smaller particles |
| fermiontation | cellular respiration that does not require oxygen, 2 types 1. lactic acid fermintation 2. achoholic fermintation |
| cell cycle | the cycle of growth, development, and division cells go through |
| interphase | the period during the cell cycle of a cell's growth and development |
| chromosomes | coiled up DNA |
| sister chromatids | double chromosomes |
| mitosis | when cells copy themselves |
| tissue | a group of cells working together to do a certain job |
| organs | a group of tissue working together to do a certain job |
| organ system | a group of organs working together to do a certain job |
| organism | a group of organ systems working together to do a certain job |
Created by:
megbrody1
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