| A | B |
|---|
| Age of planet | 4.6 billion years |
| First form of life develops | 3 1/2 billion years |
| Primitive atmosphere | Ammonia, carbon dioxide, methane etc |
| Oparin hypothesis | Explains how organic compounds formed |
| Miller and Urey | Proved Oparin Hypothesis |
| bacteria | first form of life on our planet |
| organic compounds | building blocks of cells |
| eubacteria | modern bacteria |
| types of organic compounds | fat, protein, carbohydarate, nucleic acid |
| Prokaryotic cells | lack nucleus and membrane bound organelles |
| adaptations | heritable trait that helps organism survive |
| ozone layer | protects the planet from excess radiation |
| extremeophiles | some archabacteria that live in extreme conditions |
| eukaryotic cells | more highly evolved and complex than prokaryotic cells; hane a nucleus and organelles |
| nucleus | contains DNA in eukaryotic cells |
| DNA - Deoxyribonucleic Acid | nucleic acid carrying genetic code |
| Chromosomes | supercoiled DNA wrapped wrapped around proteins |
| organelles | structures found in eukaryotic cells |
| Ribosomes | site of protein synthesis |
| Mitochondria | site for generating cellular energy |
| golgi bodies | repackage proteins |
| endoplasmic reticulum | channels for move proteins |
| lysosomes | contain enzymes to breakdown dead cells or other material |
| cell membrane | regulates what enters or exits the cell |
| cytosol | colloid or gel-like mixture where organelles are found |
| nuclear membrane | regulates what enters or exits the nucleus |
| kingdoms | large groups to organize living organisms |
| Kingdom Archaebacteria | descendants of the first bacteria |
| Kingdom Eubacteria | kingdom of modern bacteria;prokaryotic cells |
| Kingdom Protista | mostly unicellular and eukarotic organisms |
| Kingdon Fungi | multicellular, eukaryotic organisms and decomposers |
| Kingdom Plantae | multicellular, eukaryotic organisms and producers |
| Kingdom Animalia | Multicellular, eukaryoic cells, consumers |
| evolution | changes in population over a long period of time |
