Title: Osmosis and water potential Aim of the experiment: Finding the water potential of potato. Biological principles: Independent variable: concentration of the solution. Dependent variable: percentage changed in weight of the potato strips. Controlled variable: size of the potato strips‚ it can be controlled by cutting the length of the strips. Procedure: Table 1. Concentration of sucrose solution table Concentration/ M | Sucrose Solution/ ml | Distilled
Premium Water Concentration Solution
Martina Oganesyan Title of investigation: The effect of solute concentration on osmosis in potatoes. Research question: What is the solute concentration of a potato? Hypothesis: Osmosis is the movement of water across the membrane from an area of high concentration to an area of low concentration. The osmosis continues until the solute concentrations are equal in both areas. In this experiment‚ we put pieces of potatoes into test tubes with sugar solutions of different concentrations and leave
Premium Concentration
Donating Blood Imagine that your father had just suffered a heart attack‚ and has to go through open-heart surgery in order to repair the damage that happened to his heart. Imagine your little nephew or niece was born with a rare heart defect and had to have a daily transfusion of blood in order to have a chance to wake up the next day. Imagine that your best friend went to the doctor and had just been diagnosed with leukemia‚ a disease requiring regular platelet transfusions. These aren’t
Premium Blood Hematology Blood donation
It is no secret that bottled water costs more than tap water‚ but is it reasonable to state it costs 1‚000 times more? It is very difficult to give an exact number for the difference between the two‚ but 1‚000 to 2‚000 times more is a reasonable estimate. This is based on the fact that on average‚ a gallon of bottled water costs $1.22. Protesters against bottled water industries use the highest prices of water bottles they can find as a way to show a bigger contrast between the two‚ essentially
Premium Bottled water Drinking water Water quality
Activity 1: Observing Your Own Blood Questions: A. What are the components of blood? Red blood cells‚ white blood cells‚ platelets‚ and plasma B. What is the function of red blood cells? They carry oxygen around the body. C. List the five types of leukocytes and describe the function of each. A. Neutrophils- are white blood cells. They are the most numerous of all leukocytes. They are the first responders to infections. When bacteria are found‚ neutrophils will surround
Free Blood Immune system Blood type
1. Blood type “O” is very important for the people that are in need for extra blood. Say if someone got into an accident and lost extremely amount of blood‚ the surgeons will have to use type “O” blood to give them the amount of blood needed. It can be transfused to a patient with any blood type. Blood banks being low on type “O” is a huge problem in today’s society; without type “O” blood injured people wouldn’t be able to make it. Blood donors are encouraged to donate blood to hospitals and different
Premium Blood type Blood
Artificial Blood Use the following text and websites to research information about the progress in the production of artificial blood and use available evidence to propose reasons why such research is needed USE THE BRIEF SCAFFOLD SUPPLIED BELOW TO WRITE A REPORT ABOUT ARTIFCIAL BLOOD ------------------------------------------------- Introduction – A paragraph addressing questions 1 and 2 ------------------------------------------------- Body – Paragraphs addressing questions 3‚ 4‚ and
Premium Blood Red blood cell Blood type
Speech Your Name: Tyra Manning-Grate Organization: Topical pattern. Topic: Blood Donation Rhetorical Purpose: To inform my audience on what to expect with blood donation. Redemptive Purpose: To inform my audience how the process of blood donation is simple but life changing for someone else. Exodus 24:8 Moses then took the blood‚ sprinkled it on the people and said‚ “This is the blood of the covenant that the LORD has made with you in accordance with all these words
Premium Blood Blood donation Donation
Seeding cells into needled felt scaffolds for tissue engineering applications SUMMARY: Tissue engineering methods are under development that will enable the repair or replacement of a variety of tissues‚ including articular cartilage and bone. To engineer functional tissue it is necessary that scaffolds initially be seeded with a large number of cells distributed evenly throughout the scaffold structure. It previously has been shown that‚ compared to static seeding conditions‚ seeding scaffolds
Premium Scanning electron microscope Electron microscope
Water is a chemical compound with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure‚ but it often co-exists on Earth with its solid state‚ ice‚ and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces. Water is considered a purifier in most religions. Major faiths that incorporate ritual washing (ablution) include Christianity
Premium Oxygen Metabolism Atom