BIO 1140 Lecture Notes - Lecture 1: Robert Hooke, Small Cell, Archaea
12 Mar 2018
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1. 1, 2. 3: microscopy will not be covered in class must still be understood. Cell biology is the study of living cells: the regulation, structure and composition of cells. How did this beginning study become the discipline of cell biology? (200 years of observations and gathering data) Mid 1800s cell theory developed into 3 components: all organisms are made of 1+ cells, cell is the basic structural and functional unit of all living organisms, cells arise only from division of existing cells. This is what determines what is part of the tree of life (living vs non living organisms) Some of the cells in slide 8 have flagella, membrane, cytoplasm, not all have nucleus . Organize cells into functional areas or remain single cells (prokaryotes: why are archaea similar to eukarya? (similarities of dna, the way it divides, lacks peptidoglycan layer, similarities in rrna (transcription, translation), membrane phospholipids.
