Biology Assignment 1. Tissue types and their properties! Body tissues! The four core types of tissues in the body are; epithelial, connective, muscle and nervous. Each is designed for specific functions. Epithelial Tissues! Epithelial tissues are spread out all over the body. They cover all surfaces and also line body cavities and hollow organs. These tissues are also the major tissue in glands. Epithelial tissues have many functions including secretion, protection, excretion, diffusion, absorption
Connective Tissue Connective tissues are found all over our bodies. Generally, they are located in blood, fat, and between muscles and bones. The matrix is the substance that surrounds the cell. Matrices can be fluid or solid, depending on where they are found. They also are found to have varying degrees of vascularity. For example, a bone would be very vascular while cartilage is avascular. Two good property the cells of connective tissue have is that they can divide and repair themselves
Tissue engineering is a field which involves biology, medicine, and engineering. It aims at restoring, maintaining and enhancing tissue and organ function by implanting natural, synthetic or semi-synthetic tissue and bioartificial organs that are fully functional from the beginning, or that grow into the required functionality (Nature Publishing Group., 2014). It is emerging as a potential alternative or complimentary solution for organ failure. Basic Tissue Engineering Principles (Castells-Sala
Damaged tissue (inflammation) Inflammation is the body’s response to injury. Inflammation is a protective attempt by the body to attempt to remove harm and to initiate the healing process. Inflammation occurs with a few minutes of the incident up to a few hours after depending on the severity of the injury. There are 5 key characteristics of inflammation these are: • Pain • Redness • Swelling • Heat • Immobility (loss of use) Injury causes Tissue damage.
Bone and soft-tissue sarcomas can develop from many different tissues such as the bone or muscle. Sarcomas can occur anywhere in the body and are not common. Sarcomas may be found in the trunk, internal organs, head and neck area, and the back area of the abdominal cavity. There are approximately 50 different types of soft tissue sarcomas that can occur in the body. Symptoms of bone and soft-tissue sarcomas are lumps, pain in stomach or digestive tract, swelling in the area of pain, weight loss and
Investigating the Factors that Affect Osmosis in Living Tissue Aim: To investigate the factors that effect osmosis in living tissue. Planning: Introduction Essentially, osmosis is the diffusion of water across a selectively permeably membrane. Osmosis is one of the ways by which substances enter and exit cells. Other ways include diffusion, the Donnan effect[1], solvent drag, filtration, endocytosis, exocytosis and active transport. All of these methods are necessary to provide
Investigating Osmosis in Potato Tissue Aim To estimate the concentration of sucrose in potato tissue. Hypothesis ========== I believe that the potato tissue that has been in the hypotonic (0.1M sucrose) solution will be more turgid than before, while the tissue in the isotonic (0.3M sucrose) will be similar to its previous state. The tissue that has been in the hypertonic (0.5M sucrose) should be far more placid than it was before. This is because of osmosis - water diffusing
Investigation of Osmosis in Plant Tissue Aim To investigate factors which affect the rate of osmosis. The main factors which affect osmosis are: Pressure Temperature Surface area Solute Concentration Plant Tissue We will be investigating solute concentration as this is the easiest factor to measure and will give us the most accurate results. We will mainly investigate the different rate of osmosis when potato cells are placed in solution with different solute concentrations
activated Adipose Structure and Function There are two categories of human adipose tissue, subcutaneous adipose tissue (SCAT) and visceral adipose tissue (VAT). Adipose tissue can be further classified as white adipose tissue (WAT) and brown adipose tissue (BAT). Adipose is composed of adipocytes, pre-adipocytes, fibroblasts, and immune cells. A vascular network runs through adipose while nerves innervate the tissue as well. Adipocytes found in WAT contain a single large lipid droplet which is considered
Investigating Osmosis in Potato Tissue Aim-We are going to investigate how 'osmosis' is effected by higher and lower concentrations of water using potato cylinders as selectively permeable membranes. A selectively permeable membrane is something only water molecules can pass through. We will cut eighteen potato cylinders to the same width and length using a scalpel and a corer on a white tile. We shall use the same potato for each cylinder. The cylinders should then be around the same
Factors Affecting Osmosis in Potato Tissue Introduction: I am going to design and modify an experiment used to show osmosis in potato chips in different concentrations of sucrose solution. I am also going to investigate on how potato chips change in volume and weight when placed in different concentrations of sucrose solution. I will also conduct a preliminary experiment before my final experiment. Aim: To investigate the effect of different concentration of sucrose solution on potato
The Factors Affecting Osmosis in Potato Tissue Planning In this coursework I am investigating the factors affecting osmosis in potato tissue. [IMAGE] Osmosis is defined as the net movement of water molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as a cell membrane, which lets smaller molecules such as water through but does not allow bigger molecules
Water Relations in Two Plant Tissues Results: Table 5 Table to show the sucrose concentration and water potential of each tissue. The sucrose solution was extrapolated from graph 1, which shows the percentage change of mass of the tissues when immersed in the different sucrose solutions. A line of best fit was drawn, where the line of best fit intercepts the x-axis (concentration of sucrose solution) is the sucrose concentration of the tissue because at this point there is no mass
An Experiment to Investigate Osmosis in Plant Tissue Aim: To conduct an investigation to compare the osmotic behavior of two types of plant tissue in varying concentrations of sucrose solution. To find the point at which there is no change in mass or length of a specific plant tissue in a certain sucrose solution, the point of equilibrium, where sucrose and water contents are both equal in the solution and the tissue. Introduction: When a plant cell is placed in a sucrose solution there
Determining the Concentration of the Cell Sap in Potato Storage Tissue Aim: To determine the concentration of the cell sap in potato storage tissue. By using Osmosis, determine what the sugar concentration of cell sap is. Prediction I predict that the potato segment in the distilled water will definitely gain in weight because the solution outside it has a much higher concentration of water then in the cell sap meaning Osmosis will occur and the potato segment take in water. I predict
The Effect of Sucrose Concentration on the Mass of Potato Tissue Prediction: I predict that a high sugar solution will cause the mass of the potato to decrease. This will be due to osmosis. Osmosis is the diffusion of water from a region of high concentration to a region of low concentration across a semi-permeable membrane, such as the one of the potato. If the water concentration inside the potato is higher than the water concentration in the solution then the cell will lose water through
Use of Human Fetal Tissue in Research is Morally Repugnant Research on human fetal life involves numerous complex medical, moral, and legal aspects. It is not always easy, nor desirable, to seal off one aspect from another. Both sides of fetal tissue use will be equally focused on as a moral issue. The topic is a timely and important one because research on human fetal life is reportedly a growing industry and the subject of legal developments both in the United States and around the world
The Effect of Water Concentration on the Mass of Potato Tissue Aim: The aim of this investigation is to discover the effect of water concentration on the mass of potato tissue, and also to investigate the movement of osmosis through potato tissue. Scientific Knowledge: When a substance such as a sugar dissolves in water, the sugar molecules attract some of the water molecules and stop them moving freely. This, in effect, reduces the concentration of water molecules. Water Potential:
Effect of Concentration of Sucrose Solution on Osmosis in Potato Tissue Aim:- To find the effect of varying external concentration of sucrose solution on osmosis in potato tissue. Variables:- J The concentration of the sucrose solution around the potato tissue. Depending on the concentration of the solution, osmosis will occur more or less. J The size and shape of the potato. The longer and wider the potato tissue, the larger the surface area, which means that more of the potato
to Fetal Tissue Research The use of fetal tissue in biomedical research has been a hot topic for debate in social and political forums ever sense the landmark decision in the 1973 case of Roe vs. Wade (Beller & Weir 182). The decision of the Supreme Court to give women the right to abort a fetus without having a medical reason for doing so, sparked controversy which has affected any medical procedure or research dealing with fetuses (Bellar &Weir 182). Supporters of fetal tissue research believe