BIOL1020 Study Guide - Glycosidic Bond, Cellular Respiration, Alphaproteobacteria
Document Summary
It is believed all living organisms evolved from a single, common ancestor cell (roughly 2. 8 billion years ago) Bacteria are the supreme inhabitants of other organisms. Plasma membrane (refers to a fluid matrix which separates the contents from its surroundings) Cytoplasm (semi-fluid matrix which contains chemicals of cell i. e. sugars, amino acids, proteins (and organelles in eukaryotes)) Proteins and carbohydrates (the workhorses" and energy source) Perform metabolic processes (interconversion of different forms of energy and chemical materials i. e. photosynthesis and respiration) Eukaryotic cells have dna contained inside a membrane. Eukaryotic cells have internal membranes that allow them to compartmentalize cellular processes. Contains 3 membranes (outer, inner & thylakoid) Inner membrane surrounds stroma which contains soluble enzymes, dna and thylakoids. Occupies more than 30% of cell volume. Cell shape, cell support and cell movement. Houses water, enzymes, ions, pigments and toxic metabolic byproducts. Transport of protons from cytosol to vacuole helps keep cytoplasmic ph stable.
