UT Arlington BIOL 3442 - Final Exam Study Guide (14 pages)

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Final Exam Study Guide

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Final Exam Study Guide


review from entire semester containing... homeostasis, cellular, membrane, neuron, nervous system, sensory, endocrine, muscle, circulatory, excretory, respiratory, fluid

Study Guide
University of Texas at Arlington
Biol 3442 - Principles of Animal Physiology

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BIOL 3442 1st Edition Final Exam Study Guide Final Exam Review Homeostasis o Stability balance equilibrium o Regulation receptor receives info integration center then effector sends signal o Feedback system positive and negative o Positive feed back amplify the chg in the variable o Negative feedback reverse direction of chg antagonistic control brings body back to homeostasis o Reset system negative fb in which a set point is adjusted temporary permanent or cyclic o Levels of homeostasis Cellular cells control own ion concentrations volume and internal energy Intrinsic tissues and organs self serving for the particular organ Extrinsic external to the organ can override cellular and intrinsic coordinated by NS and endocrine system o Animals either Control homeostasis strictly Avoid disturbances behaviorally Conform but do not adjust to chgs in environmental conditions o Krogh principle for a large number of problems there will be some similar of choice or a few such animals on which it can be most conveniently studied o Homeostatic systems NS Endocrine Integumentary Muscle Cardiovascular Respiratory Digestive Urinary Reproductive Cellular o Universal life components Water Carbon dioxide Lipids Amino acids Nucleotides o Components of a eukaryotic cell Nucleus control center and nuclear DNA Ribosomes endoplasmic reticulum protein factory Golgi complex processing plant modifies proteins Lysosomes cells digestive system breaks down organic material Peroxisomes oxidize toxins break down fatty acids into acetyl CoA Mitochondria power station krebs DNA independent Cellular respiration energy production glycolysis krebs Cytosol fluid surrounding organelles site of glycolysis Cytoskeleton provides structure to cells Extracellular matrix outside of cell holds cells and tissues together Cell junctions desmosomes tight junctions gap junctions Desmosomes strong meet a lot of abrasion little communication with small space between cell junction Tight junctions small molecules cant

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