There are twenty-four different blood types known. The most common blood types known are A‚ B‚ AB‚ and O. The knowledge of blood types has saved so many people’s lives. Blood types are also called blood groups. Blood types are inherited‚ and they never change. Everybody has a blood type. All human blood looks alike‚ but once tested it shows the differences between the blood. The letters A‚ B‚ AB‚ and O stand for two antigens labeled A and B. Antigens are substances targeted by the immune system
Premium Blood type Blood
Blood Clots What are blood clots? Blood is a liquid that flows within blood vessels. It is constantly in motion as the heart pumps blood through arteries to the different organs and cells of the body. The blood is returned back to the heart by the veins. Veins are squeezed when muscles in the body contract and push the blood back to the heart. Blood clotting is an important mechanism to help the body repair injured blood vessels. Blood consists of: · red blood cells containing hemoglobin that
Premium Blood
AHP216 04/16/13 I. Introduction: The purpose of this experiment is to observe the osmosis reaction in a potato with salt and water. In cooking cooks will soak their cut potato’s in water if they will not use them immediately. This allows the potato’s to be used later without turning color. The experiment shows the flow of water through the membranes of the potato with salt over a period of four hours. II. Objective: The reaction of the potato to the side submerged in water and the half excavated
Premium Potato Rachel Change
Lab # 2 Diffusion & Osmosis Introduction Kinetic energy‚ a root of energy stored in cells‚ causes molecules to hit into each other and move in new directions. Diffusion is the result of this contact. Diffusion is the random movement of molecules to an area of lower concentration from an area of higher concentration. Osmosis is a type of diffusion. This is the diffusion of water through a selectively permeable membrane from a region of higher water potential to a region of lower water
Premium Osmosis Chemistry Diffusion
DIFFUSION AND OSMOSIS Chapter 3 of your textbook explains diffusion and osmosis. Diffusion is simply the net movement of atoms or molecules from a region of higher concentration to a region of lower concentration. The force behind the movement is heat or kinetic energy (also called Brownian motion). Diffusion occurs when you spill water on the carpet floor and it spreads out‚ or when you open a bottle of perfume and it leaves the bottle and spreads throughout the air in the room. Osmosis is a similar
Premium Osmosis Solution
Information Osmosis is one of the four methods of moving particles across membranes along with simple diffusion‚ facilitated diffusion‚ and active transport. Water is able to move in and out of most cells freely. Sometimes the number of water molecules moving in and out is the same and there is no net movement‚ but at other times the molecular movement from one direction exceeds the movement from other direction and creates a net movement. This net movement is called osmosis. Osmosis is due to differences
Premium Osmosis Chemistry Concentration
The cell is the fundamental structural unit of all living organisms. Some cells are complete organisms‚ such as the unicellular bacteria and protozoa; others‚ such as nerve‚ liver‚ and muscle cells‚ are specialized components of multi-cellular organisms. Cells range in size from the smallest bacteria-like mycoplasmas‚ which are 0.1 micrometer in diameter‚ to the egg yolks of ostriches‚ which are about 8 cm (about 3 in) in diameter. Although they may differ widely in appearance and function‚ all cells
Premium Cell Eukaryote Organelle
Topic: The Process of Blood Donation General goal: To inform. Specific goal: To explain the process of donating blood Thesis Statement: I am going to be talking about the steps for donating blood‚ including the preparation‚ the drawing of blood‚ the recovery process‚ and what is done with the blood afterwards. Introduction: 1. As stated in the Merriam-Webster Collegiate Dictionary in 2004‚ “blood is the fluid that circulates in the heart‚ arteries‚ capillaries‚ and veins of a vertebrate
Premium Blood Blood type Blood donation
if you place them in two different solutions. Osmosis has a lot to do with this experiment and is the movement of water molecules from a higher concentration to a lower concentration. Osmosis only deals with water and is a type of diffusion. The difference between all three solutions is that in a hypertonic solution the cells fluid rushes out of the cell and causes it to shrivel. In a hypotonic solution water rushes into the cell and causes the cell to expand and eventually pop. In a isotonic solution
Premium Osmosis Chemistry Concentration
Practical Work Nº2: “Different methods to control osmosis” Aim: observe and test the process of osmosis through different kinds of methods: the weigh (potato)‚ the density (beetroot) and under the light microscope (onion). Hypothesis: according to the encyclopedia definition osmosis is the diffusion of a liquid (most often assumed to be water‚ but it can be any liquid solvent) through a partially-permeable membrane from a region of high solvent potential to a region of low solvent potential. Thus
Premium Concentration Osmosis Laboratory glassware