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Learn about the types of cells - Prokaryotic and Eukaryotic, and explore the 7 Kingdoms of classification in biology. Understand the characteristics and examples of each kingdom.
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A. Cell Types Prokaryotic Eukaryotic • Small • Primitive cell • Single cell organisms • No organelles • Not true nucleus • Grow and reproduce quickly • Larger cell • More advanced • Single or multi cell • Organelles • True nucleus • More complex reproduction in series of steps 2
A car classification example might be: • Motor vehicle • Car • Ford • Mustang • V-6 • Convertible • red 4
B. Classification • Scientists use systems to group and classify • Linnaeus Classification System • extinct and living species of organisms • grouped by physical characteristics 5
Linnaeus Classification System Classification order: Ex: Human Classification • kingdom • Phylum • 3. Class • 4. Order • 5. Family • 6. Genus • 7. Species • Animal • Chordata (vertebrate) • 3. Mammal • 4. Primate • 5. Hominidae • 6. Homo • 7. Sapien 6
1. The Kingdom Monera unicellular prokaryotic Many biologists divide into 2 kingdoms: a. Eubacteria - true bacteria; commonly found in soils, water or living in or on other organisms (present everywhere) Ex: E.Coli, salmonella, strep 9
b. Archeobacteria • inhabit extreme conditions such as hot springs, volcanoes, ocean depths, no oxygen places • thought to be the most primitive prokaryotes (1st to exist) 11
2. Kingdom Protista unicellular/multicellular eukaryotic may have chloroplasts. small, although many can be recognized with a magnifying glass Ex: paramecium, euglena, amoeba 13
Ex: plankton (drifting organisms) • zooplankton – animal like; • amoeba, paramecium • phytoplankton – plant like; 14
3. Kingdom Fungi multicellular eukaryotic Nutrients from absorbing foods decompose dead organisms; do NOT perform photosynthesis do not move Ex: mushrooms, puff balls; yeast, molds 16
4. Kingdom Plantae multicellular eukaryotic autotrophs/photosynthetic 18
5. Kingdom Animalia (1.5 million in category) multicellular eukaryotic Nutrients obtained from ingestion heterotrophs have organelles including a nucleus, but no chloroplasts or cell walls they move 19