BISC207 Lecture Notes - Lecture 8: Nucleolus, Organelle, Glycolipid

• School: University of Delaware
• Department: Biological Sciences
• Course: BISC207
• Professor: Olabisi Oyenike

Document Summary

*define the cell theory and the discovery of the cell. Named it after the monk"s living cells. The discovery of the cell was made possible through the invention of microscopes. Hooke built the first to observe sections of dried cork from plants. Leeuwenhoek improved the magnifying power of microscope lenses, and scientists were able to see unicellular organisms, protozoa, and algae. All organisms are made up of cells. The cell is the fundamental unit of life. All known living things are made of one or more cells. All living cells arise from preexisting cells by division. The cell is the fundamental unit of structure and function in all living organisms. The activity of an organism depends on the total activity of independent cells. Energy flow (metabolism and biochemistry) occurs within cells. Cells contain dna which is found specifically in the chromosome and rna found in the cell nucleus and cyto. All cells are basically the same in chemical composition.