Computer Simulation of Cell Transport Mechanisms and Permeability: Passive Processes and Active Processes Introduction In this lab we will establish a difference between the two types of cell transport mechanisms and their permeability. The first type of cell transport is passive processes which are driven by concentration or pressure differences in the interior and exterior of the cell. The second type is active processes which use energy known as ATP to power the transport. There are two
Premium Diffusion Molecular diffusion Osmosis
Human Digestion Shaunda SCI/241 05/16/14 Human Digestion From what I have learned from the weekly readings and watching the animated digestive tract. When humans digest food‚ we go through a complex process‚ in which the food eaten is turned into energy that is needed in order to survive. During the digestion process the food eaten becomes waste that has to be eliminated eventually. I will discuss how this process works in each area of mouth‚ stomach‚ small intestine
Free Digestion
Digestion and Enzymes – APP. Hypothesis: The enzyme‚ Amylase which is used to break down carbohydrates will work the best when heated at 40°C. Also‚ as the temperature increases the reaction rate of amylase increases too. However‚ the reaction rate of amylase will start decreasing when the temperature reaches the enzyme’s optimal temperature. Many enzymes are specific for a certain substrate. For example‚ lipase is a specific enzyme for fat substrates and protease‚ a specific enzyme for
Free Enzyme
Cultural‚ Biological‚ Physical and Chemical An entirely different perspective is brought into focus as we consider some of the environmental hazards that accompany industrial growth and intensive agriculture. Some of the most dangerous hazards in this world are the outcome of purely voluntary behavior --- in particular‚ smoking tobacco and engaging in risky sexual activity. We will look at four classes of environmental hazards: Cultural‚ Biological‚ Physical and Chemical (Wright & Boorse‚ 2011)
Premium Bacteria Death Black Death
NT1230 4/3/12 8 Common Types of Computer Viruses Dictionary.com defines a computer virus as “a segment of self-replicating code planted illegally in a computer program‚ often to damage or shut down a system or network (“Virus‚” 2012).” The term virus has become more generic over the years and has come to represent any type of malware‚ or malicious software. There are many types of malware that can be classified as viruses but it is the intention of this paper to examine 8 of the most common
Premium Malware Computer virus Trojan horse
.......................................................................................... 19 3.1 First order differential equation models 3.1.1 Step response of a first order model 3.1.2 Impulse response of a first order model 3.1.3 Integrating process 3.2 Second order differential equation models 3.2.1 Step response time domain solutions 3.2.2 Time-domain features of underdamped step response 3.3 Processes with dead time 3.4 Higher order processes and approximations 3.4.1 Simple tanks-in-series
Premium Control theory
Energy in context Introduction Digestion is the breakdown of large insoluble food molecules into smaller molecules so they can pass though the intestinal wall into the bloodstream and be transported throughout the body. There are seven different food groups in a balanced diet which should include Carbohydrate‚ fat‚ water‚ protein‚ fibre‚ vitamins and minerals. Although most foods contain these in some shape or form the foods that contain most of one type fall into that category‚ a chicken
Premium Digestion Stomach Nutrition
Physio-EX Blood Analysis: Computer Simulation Introduction In this lab five blood tests will be performed: hematocrit determination‚ erythrocyte sedimentation rate‚ hemoglobin determination‚ blood typing‚ and total cholesterol determination. A “hematocrit refers to the percentage of red blood cells (RBC’s) in a sample of whole blood. Since the function of red blood cells is the transport of oxygen to the cells of the body‚ the higher the hematocrit‚ the more red blood cells are available to carry
Premium Computer Database SQL
PHYSICAL SCIENCE physical change-changes affecting the form of a chemical substance‚Physical changes are used to separate mixtures into their component compounds Example:breaking glass Chemical changes- when a substance combines with another to form a new substance ‚called chemical synthesis. Example: burning wood Law of Conservation of Mass-The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations
Premium Sun Chemistry Milky Way
based on the efflux of potassium ions (as demonstrated in Activity 1). What passive channels are likely found in the membrane of the olfactory receptor‚ in the membrane of the Pacinian corpuscle‚ and in the membrane of the free nerve ending? Chemical and pressure channels. 2. What is meant by the term graded potential? Graded potential are changes in the transmembrane potential that cannot spread far from the site of stimulus. 3. Identify which of the stimulus modalities induced the largest
Premium Action potential