BIOL 1081 Lecture Notes - Lecture 8: Lipid Bilayer, Nuclear Membrane, Nuclear Lamina
Document Summary
Cells & prokaryotes vs. eukaryotes reading: sections 6. 1-6. 3 in textbook: describe the factors that limit cell size. The relationship between the surface area of the membrane and the volume of the contents of the cell. As a cell increases in size, its surface area grows proportionately less than its volume. (area is proportional to a linear dimension squared, whereas volume is proportional to a linear dimension cubed. ) Thus, a smaller object has a greater ratio of surface area to volume: list the structures that all cells have, describing the composition and function of each of these structures. They are all bounded by a selective barrier, called the plasma membrane. Inside all cells there is a semifluid, jellylike substance called cytosol, in which subcellular components are suspended. Chromosomes, which carry genes in the form of dna. Ribosomes, tiny complexes that make proteins according to instructions from the genes: list the basic cellular characteristics that distinguish between prokaryotic and eukaryotic cells.
