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Paola Barr
weeks 1-6
| Question | Answer |
|---|---|
| homeostasis | process by which the body maintains a stable internal environment despite external changes |
| factors regulated | temperature,blood pH, glucose,ion concentrations |
| negative feedback | reverses a change and bring system back to normal state |
| positive feedback | causes reaction |
| bio molecules | found in living organisms that are essential for life |
| 4 types of biomolecules | proteins, nucleic acids, carbohydrates, lipids |
| protein | amino acids are linked together by peptide bonds |
| nucleic acid | nucleotides that consist of sugar phosphate group and nitrogenous base |
| carbohydrates | simple sugars glucose,fructose,galactose |
| lipids | fatty acids and glycerol |
| self functions in living organisms | ability to carry out essential life processes |
| cell membrane | thin flexible barrier that surrounds the cell |
| fluid mosaic | structure of cell membrane |
| 4 tissues | epithelial, connective, muscle, and nervous |
| epithelial | cover body surface |
| connective | connects other tissues |
| muscle | involuntary/voluntary movement |
| nervous | transmitting signals throughout body |
| 2 main skeletal tissues | bone, cartilage |
| long bone | femur humerus |
| short bones | carpals tarsals |
| flat bones | skull ribs strernum |
| irregular bones | vertebrae facial |
| hyaline | found in joints ribs nose and trachea |
| elastic | flexible found in ear and epiglottis |
| fibrocartilage | found in interverbal discs and knee |
| articulation | two or more bones meet allowing movement and flexibility |
Created by:
paolabarr
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