BIO206H5- Midterm Exam Guide - Comprehensive Notes for the exam ( 21 pages long!)
Document Summary
Characteristics of life: growth, metabolism, response to stimuli, movement. A lipid-membrane bound unit filled with a concentrated and organized aqueous solution containing: proteins, nucleic acids, variety of organic compounds. Inorganic ions: carbohydrates, lipids, organelles (not all cells, water. A cell should display the 5 characteristics of life. Central dogma: all living beings are united by the cell. There are two major classifications of cells: prokaryotes and eukaryotes. Abundant and diverse organelles that compartmentalize biochemical reactions. Prokaryotes: bacteria: most bacteria including photosynthetic organisms, archaebacteria: can grow in extreme environments. Not all prokaryotes have a cell wall: only gram -ve ones do. Dna and its ability to replicate is what unites all living beings. Information required to build an organism: dna associates with histones (proteins, forms chromatin, synthesis of rna. Nucleolus: condensed dna (many copies, genetic information for ribosome synthesis, site of ribosome synthesis.
