NATS 1670 Lecture Notes - Lecture 12: Opportunistic Infection, Endoplasmic Reticulum, Golgi Apparatus

• School: York University
• Department: Natural Science
• Course: NATS 1670
• Professor: Motti Anafi

Document Summary

Cells are the basic building blocks of all living organisms. Unicellular organisms which consist solely of a single cell (e. g. bacteria and yeast) and multi- cellular organisms which are made of several to billions of cells (animals and plants). The cells in multi-cellular organisms work together to allow the organism to grow and survive. Eukaryotes: membrane bound organelles (nucleus, multi-cellular contain a mitochondria, endoplasmic reticulum, golgi apparatus, permeable nuclear membrane, vacuoles, cell wall (plants and fungi) larger than prokaryotes, examples: fat cells, muscle cells, motor neuron cells (found in animals and humans) Prokaryotes: no nucleus, unicellular, examples: e. coli, streptococcus bacterium chemically complexed cell wall smaller in size than eukaryotes. Fungi (eukaryote: commonly used in the food industry. Its used under anaerobic (alcohol) and aerobic (bread) conditions. Mold: filamentous fungi with a mycelial structure. Mycelium is a highly branched system of tubes that contain mobile cytoplasm with many nuclei: mold is used for production of citric acid & antibiotics.