BIO 1140 Chapter Notes - Chapter 1: Escherichia Coli, Robert Hooke, Nuclear Membrane

• School: University of Ottawa
• Department: Biology
• Course: BIO 1140
• Professor: Caroline Petit- Turcotte

Document Summary

Bio1332b introduction: what is a cell, 1600"s. B. 2. cells are the basic building block of life. B. 3. calls come from other cells: cell features. Effect the rates of diffusion and therefore the efficiency of the cell. All work together to achieve the same goal: tree of life. Our focus is primarily on plants, animals, and fungi. Elaborate membrane structures allow for organized cell functions. Subcellular compartments within the cytosol surrounded by a membrane. Ribosomes don"t have membranes, and therefore aren"t considered organelles: cell examples. Maintains differences in the chemical environment between the cytoplasm and the nucleus. A. 1. section 2. 1a and figure 2. 4: electron microscopes. Makes a picture based on where electrons pass through and where they don"t. A. 1. subcellular compartments within the cytosol surrounded by a membrane. A. 2. their functions are varied and depend on the cells role. B. 3. nuclear pores control what comes in and what goes out. Enzymes in cytoplasm would digest dna if allowed access. Functions as a circulatory system for the cell.