NATS 1840 Study Guide - Final Guide: Carbohydrate, Cell Nucleus, Microevolution

• School: York University
• Department: Natural Science
• Course: NATS 1840
• Professor: Carl Wolfe

Document Summary

There were 2 phases that took place first phase was chemical evolution of the organic molecules, biopolymers and systems of chemical reactions needed to form the first cells. The second phase was the biological evolution from single celled prokaryotic bacteria to single celled eukaryotic creatures and then to multicellular organisms. Most of our knowledge about past life comes from fossils, which are mineralized or petrified replicas of skulls and bones, chemical analysis, cores drilled out of buried ice and dna analysis. Four types of large organic compounds are the molecular. Polymers are larger and more complex organic compounds that consist of a number of basic structural or molecular units (monomers) linked by chemical bonds. Four types of macromolecules are molecular building blocks of life: complex carbohydrates, proteins, nucleic acids, lipids. Complex carbohydrates consist of two or more monomers of simple sugars linked together.