BIO 200 Lecture Notes - Lecture 13: Pseudopodia, Heterokont, Apicomplexa
27 Jun 2015
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Document Summary
Eukaryote traits: multicellularity (almost always, much larger cells, allows for flexibility and differentiation of cell types. Differing form and function of cells: sexual reproduction, increased genetic diversity, speed of adaptation must increase due to slower generation times, compartmentalization, membrane infolding. Increased gas and nutrient exchange: pinching off (endocytosis, new structures inside cell (organelles) Region of attachment infolded: nucleus and endoplasmic reticulum (er) have double membrane, engulfment of other cells layers. Mitochondria: engulfed aerobic bacterium, not digested, detoxifies oxygen, atp production. Locomotion: flagella: usually wave, cilia: many hairs (usually aquatic, pseudopodia: sticky protrusions that roll (false feet, cell surfaces, cell membrane, may have other extracellular materials, nutrition, photoautotrophs, photoheterotrophs, or chemoheterotrophs, photosynthesis. Secondary endosymbiosis (engulfed other eukaryote: reproduction, sexual and asexual. Development of multicellularity: eukaryotic cells live close together, cell colonies form, colony functions as an individual, specialization of cell types led to diversity today.
