Chapter 45 Hormones and the Endocrine System PowerPoint Lectures for Biology‚ Seventh Edition Lectures by Ching-wei Luo Hormone (from the Greek horman‚ to excite) • Overview: The Body’s Long-Distance Regulators • Hormone definition: a chemical signal secreted into the circulatory system and communicates regulatory messages within the body • Hormones may reach all parts of the body But only certain types of cells (target cells) are equipped to respond Q Two systems act individually
Premium Endocrine system Hormone Hypothalamus
1. Using diagrams and/or graphs‚ explain the following terms: a. Pressure Head pressure head [′presh·ər ‚hed] (fluid mechanics) Also known as head. The height of a column of fluid necessary to develop a specific pressure. The pressure of water at a given point in a pipe arising from the pressure in it. b. Total Discharge Head Total discharge head refers to the actual physical difference in height between the liquid level in the pit and the highest point of the discharge pipe or water level in
Premium Fluid dynamics Pressure Fluid mechanics
Tanya 2012 Ruminant fluid lab Tanya 2012 Ruminant fluid lab Lab report Ruminant fluid Tanya Zoo Physiology 31.10.2012 Zoo phy Zoo physiologysiology Lab report Ruminant fluid Tanya Marlene Tysnes Zoo Physiology 31.10.2012 Zoo phy Zoo physiologysiology Introduction Ruminants - Grass-eating (herbivorous) mammals with a paunch with micro-organisms that digest cellulose and other polysaccharides from plant sources. Most animals lack the enzyme‚ that is necessary
Premium Purple Bacteria Cellulose
BioLab3 Cell Membranes Lab Report Student Name: I. Diffusion Define the following terms. Solvent Solute Solution. Diffusion Concentration gradient Dynamic equilibrium EXERCISE 1 – Factors influencing rate of diffusion Predict how molecule size and temperature will affect the outcome of this experiment. Record the data from the information in the lab. Potassium Permanganate R.T. Methylene Blue R.T. Time (min) Total Diameter
Premium Osmosis Cell membrane Diffusion
Cell Membranes and Transport Hands-On Labs‚ Inc. Version 42-0033-00-01 Exercise 1: Diffusion Observations Data Table 1: Rate of diffusion in different temperatures | | ºC | Minutes | Temperature | InitialTemp. | InitialColor | 5 | 10 | 15 | 20 | 25 | 30 | 60 | Cold | 10°celsius | clear | clear | clear | clear | clear | clear | light purple | light purple | Ambient | 25°celsius
Premium Osmosis Diffusion Temperature
PLASMA INTERNATIONAL The Sunday headline in the Tampa‚ Florida‚ newspaper read: “Blood Sales Result in Exorbitant Profits for Local Firm.” The story went on to relate how the Plasma International Company‚ headquartered in Tampa‚ Florida‚ purchased blood in underdeveloped countries for as little as 15 cents a pint and resold the blood to hospitals in the United States and South America. A recent disaster in Nicaragua produced scores of injured persons and the need for fresh blood. Plasma International
Premium Blood Blood donation Florida
Fluid Mechanics: Fundamentals and Applications‚ 2nd Edition Yunus A. Cengel‚ John M. Cimbala McGraw-Hill‚ 2010 Chapter 1 INTRODUCTION AND BASIC CONCEPTS Lecture slides by Mehmet Kanoglu Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display. Schlieren image showing the thermal plume produced by Professor Cimbala as he welcomes you to the fascinating world of fluid mechanics. 2 Objectives • Understand the basic concepts of Fluid Mechanics
Premium Fluid dynamics
CBE 6333‚ R. Levicky 1 Potential Flow Part I. Theoretical Background. Potential Flow. Potential flow is frictionless‚ irrotational flow. Even though all real fluids are viscous to some degree‚ if the effects of viscosity are sufficiently small then the accompanying frictional effects may be negligible. Viscous effects become negligible‚ for example‚ for flows at high Reynolds number that are dominated by convective transport of momentum. Thus potential flow is often useful for analyzing external
Premium Fluid dynamics
Chapter 3 Fluid Statics: Definitions Statics: ∑F = 0. In statics we have only pressure as surface force and weight as body force. Thus‚ when fluids are still‚ the pressure is balanced by the fluid weight. No relative motion between adjacent fluid layers. Shear stress is zero Only _______ can be acting on fluid surfaces Gravity force acts on the fluid (____ force) Applications: Pressure variation within a reservoir Forces on submerged surfaces Buoyant forces 9/4/2013 1 Pressure Pressure is defined
Premium Pressure Atmospheric pressure Gas
Title Membrane Permeability Aim To determine the effect of various chemicals and high temperature on the membrane permeability of beetroot Hypothesis Organic solvent and high temperature will destroy the cell membrane and make it permeable to the red pigment. The higher the concentration of the alcohol‚ the greater will be this effect. Principle Beetroot is the material used in this experiment to demonstrate the effects of high temperature and chemicals on the permeability of the cell membranes
Premium Protein Cell membrane Ethanol