BIOL 20300 Study Guide - Midterm Guide: Genetic Code, Proteasome, Apocrine

• School: Purdue University
• Department: Biological Sciences
• Course: BIOL 20300
• Professor: Bridges David

Document Summary

Introduction objectives: versalius: without bones humans would be mushy blobs, harvey: heart maintained circular movement in blood. Contradiction to dogma of galen: galen: blood pushed back and forth through the arteries, malphigi: furthered harvey"s research and found out about capillaries. Body is in extracellular fluid with is called its internal environment . Factors that control homeostasis: body temperature, oxygen level in blood and tissues, acidity or alkalinity of blood and bodily fluids, salt content, glucose level in blood, metabolic waste product levels. Negative feedback: changes away from normal provoke changes within the opposite directions. Levels of organization: molecules, cells, tissues, organs, systems. Hox genes: central role in evolution because of the normal development in humans. Examples: deformities of human skeleton, gets rid of some ribs and increases flexibility. How neurons in central nervous system are wired. Axial portion: dorsal, ventral, small head cavities. Thoracic cavity: trachea, lungs, heart, esophagus, thymus. Pelvic cavity: urinary bladder, reproductive bladder, large intestine.