AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!


Bio 220 Principles of Physiology and Development

No votes yet

Bio 220 Notes Prokaryotes: 3.2 billion years ago Cell wall = peptidoglycans gram neg - lipopolysaccharides secreted outside of cell wall No internal compartments Unicellular and small (1-5 um) Most have single chromosome Transcription and translation occurs in the same location Eukaryotes: 2.1 billion years ago compartmentalization = organelles you can be more efficient with reaction vessels (concentrate functions) You can get by with fewer enzymes if you concentrate them into organelle, its cheaper Endosymbiants Mitochondria divide at their own rate, replicate independently of cell they live in Has its own DNA, circular First endosymbiants Cell size varies greatly RBC are the smallest and neurons are the largest/longest Plasma Membrane
Subscribe to RSS - Fertilisation

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!