BIO130H1 Chapter Notes - Chapter 1: Organelle, Protist, Fluid Balance
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BIO130H1 Full Course Notes
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Document Summary
Eukaryotic cells are the structurally more complex of the two cell types. Eukaryotic organisms include protists , fungi , plants , and. Around 600 million years in the fossil record, complex multicellular organisms appeared suddenly: there is considerable evidence that simpler eukaryotic organisms were present on earth more than 1 billion ears earlier. The main difference between prokaryotes and eukaryotes is the presence of membrane bound organelles. The internal structures of a cell interact and complement each other in both form and function. The shapes of some organelles are quite elaborate, because each organelle is adapted to perform a specific function. Plant cells differ from animal cells because plants and animals have very different requirements for obtaining food and energy. Fungi have many of the same organelles that plants and animals have. Fungilike animals are heterotrophic , while the protist kingdom includes both heterotrophs and photosynthetic autotrophs. The most complex of all cells are those of some single celled protists.
