BIO SCI 93 Chapter Notes - Chapter 1 pg(1-9): Gene Expression, Biosphere 2, Emergence

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 93
• Professor: Marcelo Wood

Document Summary

Regulation- blood flow controls constant temp of body. Emergent properties- parts that are added in each new biological level. Organs> tissues> cells> molecules> atoms (largest to smallest) Smallest unit that can perform all functions of life. An organism"s basic unit of structure and function. Membrane: regulates the passage of materials between the cell and its surroundings. All forms of life use the same genetic code. Dna, genetic information when a cell divides, dna is copied. Offspring inherit a complete set of chromosomes, same as parent. Genes have the info needed to build the molecules synthesized within a cell, establishes cells identity and function. Two long strands, arranged with a double helix. Dna encodes info like we arrange letters to make words. The process of when info in a gene creates a cellular product. Other mrna can regulate the function of protein-coding genes. Energy exchange involves transformation of energy from one form to another.