BIOLOGY 1A03 Chapter Notes - Chapter 3: Toxoplasma Gondii, Peptide, Bacteriostatic Agent

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Lovaye Kajiura

Document Summary

In cells, most proteins are enzymes that function as catalysts. Chemical evolution began with the production of small organic compounds such as formaldehyde (h2co) and hydrogen cyanide (hcn), from reactants such as h2, co2, and ch4, and nh3. Formaldehyde, hydrogen cyanide, and other simple organic compounds reacted to form the mid-sized molecules called amino acids, sugars and nitrogenous bases. These building-block molecules accumulated in the shallow ocean, forming a complex solution called the prebiotic soup. Mid-sized, building-block molecules linked to form the types of large molecules found in cells today, including proteins, nucleic acids, and complex carbohydrates. Life began when these molecules acquired ability to make copies=biological evolution. Movement (motor proteins, contractile proteins, actin and myosin) Termsmonomer -subunit or building block of a polymer: polymer -large molecule composed of several connected subunits, which are identical or similar, macromolecules -large organic polymers.