Determining the Water Potential of Potato Tuber Cells I will carry out an investigation that will enable me to determine the water potential of the tested potato tuber cells. Water Potential is the measurement of the tendency of water molecules to move from one place to another. (Ridge 1991) Water always moves down the water potential gradient, therefore moving from an area of higher water potential to an area of lower water potential. Equilibrium is reached when the water potential
Potato Tuber Cells AIM: To find the water potential of potato tuber cells. HYPOTHESIS: When cells are put in a solution with a different water potential than inside of them, cells will gain or loose water. If concentration of solution is the same, there will be no change in mass. THEORETICAL BACKGROUND: If a sample of tissues immersed in solution of varying water potential (concentration of water molecules), the cells will loose or gain water by osmosis. If the cell is put
Investigating the Concentration of Plant Cell Sap Using Potato Tuber Cells An experiment to work out the concentration of plant cell sap using potato tuber cells First of all and the most important are the safety precautions we will take throughout this experiment · Wear safety glasses to protect eyes · Handling the acids carefully · Careful while using kitchen knife (And all the simple things such as not running etc.) Another important aspect before we start is making the
DETERMINATION OF THE WATER POTENTIAL OF POTATO TUBER CELLS. Method. Five sucrose solutions with varying molarity and one control containing distilled water were prepared and poured into test tubes. The potato discs were dried, weighed and added to the test tubes. The discs were then weighed again after a period of 24 hours. The percentage change in mass was then calculated. Apparatus.  Specimen tubes with stoppers x6  1cm3 diameter cork borer  razor blade  filter
The Effects of Sucrose Molarity on Cells in the Stem Tuber of a Potato Planning In this investigation I am trying to find out what molarity of sucrose solution is same as the molarity of sucrose in the cells of a potato. In this experiment I am going to change the molarity of the sucrose solution out the cells of potato. I predict that if the molarity of sucrose solution outside the cells is isotonic to the molarity of the sucrose inside the cells then there will be no change in weight
Determining the Water Potential of Potato Tubers using Gravimetric and Chardakov Techniques 1. INTRODUCTION: Water potential (W) is the measure of free-energy status of water in plant cell, which is the driving force governing the movement of water into and out of the plat cell and affect various metabolic activities (O’Leary, 1970). Water potential is depends on different solute concentrations, pressure and matrix a particle; measured in Mega Pascal’s (MPa) and written as: W = s + p
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 in and out of the potato tissue cells. Apparatus ========= · 1 potato tuber · 1 cork borer · 1 ceramic tile · 1 scalpel · Paper towels · 6 boiling tubes · 1 marker pen · 0.1M, 0.3M, and 0.5M sucrose solution · Access to an electric balance · 1 funnel Method ======
linked is best described as a rhizome. The first step in comparing hypertext to a rhizome system is to understand just what a rhizome is. The philosopher Gilles Deleuze came up with the idea and Janet Murray applied to hypertext. A rhizome is a tuber root system in which any point may be connected to another point. “Deleuze used the rhizome root system as a model of connectivity in systems of ideas” (Murray 132). One simplified example of this is the prewriting technique of making a web. There
Sweet Potato Tubers Aim The aim of this experiment is to compare the water potential of two different plant tissues, potato and sweet potato tubers, by measuring the gain or loss of water when samples of the tissue are placed in a range of concentrations of sucrose solutions. Background information Osmosis is the movement of water molecules from a region of their higher concentration to a region of their lower concentration through a semi permeably membrane. If the cell is surrounded
Experiment to Investigate Osmosis in Potatoes The aim of this experiment is to investigate the movement of water in and out of plant cells. The cells chosen for study will be taken from potato tubers. Firstly I will explain what osmosis is. Osmosis is the passage of water from a region of high water concentration through a semi permeable membrane to a region of low water concentration. This definition contains three important statements: a) It is the passage of water through a semi permeable
Animal Cell Anatomy The cell is the basic unit of life. All organisms are made up of cells (or in some cases, a single cell). Most cells are very small; most are invisible without using a microscope. Cells are covered by a cell membrane and come in many different shapes. The contents of a cell are called the protoplasm. The following is a glossary of animal cell terms: Cell membrane - the thin layer of protein and fat that surrounds the cell. The cell membrane is semipermeable, allowing some substances
getting the gene into the nucleus of the cell and fitting it in its proper place. On top of that problem, the new gene must function properly like a normal cell would. Many genetic disorders are the effect of a malfunction in a gene. Through gene therapy the malfunctioning gene can be replaced by a working version of the gene that carries out its normal cellular functions. To make things even more difficult on scientists, fixing the DNA in a few cells will not be beneficial for the patient.
Victor Frankenstein and His Use of Science Every spring there is a plethora of new animate beings. Creation is a yearly event for most animals. There are countless children born each day. All living beings procreate. Victor Frankenstein was a scientist, and the goal of science is to discover new information, and Victor Frankenstein was simply being a scientist and creating new information. When Victor Frankenstein created his monster, it could be compared to genetic engineering or
the short essay “The Lives of a Cell” by Lewis Thomas it is explained that this is not true. In “The Lives of a Cell” Thomas explains that humans are derived from and made of the same indispensable building blocks as all other life forms teaching the reader that despite their diversity earth’s inhabitants have more than their home planet in common. According to Thomas’ essay there is a good chance that all life on earth was “derived, originally from some single cell, fertilized in a bolt of lightning
Current research methods of transfection, delivering foreign DNA into cells, have capitalized on using non-viral vectors because of the recent advantages researchers have been able to exploit. The process of transfecting cells runs into a number of problems by way of the cell’s own defense mechanisms. Vectors must be able to not only enter the cell past the cell’s membrane but also must be able to make its way into the cell’s nucleus to access the targeted genetic material. The problem with traditional
In 1880s, proposed that the genetic information of a cell would diminish with every cell division. Hans Spemann challenged his idea and in his book entitled “Embryonic Development and Induction” talked about a fantastical cloning experiment which later became a basis for animal cloning. He called it a “nuclear transfer experiment” and suggested that cloning could be carried out by transferring nucleus from a cell into an enucleated – a cell whose nucleus has been removed – egg. John Gurdon, at Oxford
The 3 ways can be summarized as 3 C’s: Cell youth eternity Cybernetics Cryonics So, let’s turn to the first C: Cell youth eternity. Cell youth eternity A. Moral cells are born to live and die. [Cells are like human being, mortal, they are born by other cells and they die.] 1. Cells are born by cell division. a. Cell division is the process by which a cell divides into two or more cells. b. Cell division is like women giving birth to children. 2. Cells die of cell division. [Like women can not give birth
into our lives. The timeline presented by Kenneth Jost of the CQ Researcher suggests we have been discovering and patenting specific genetic discoveries since 1911 with the first patenting being the discovery of adrenaline and reproduction of the cells for the general public. Although we share different genes within our species, there are so many separate genetic markers that create our specific identity as humans. Within the research, we are also finding cures to cancers and diseases that have been
Many people have wondered what it is exactly that makes us...human. What is it that separates us from one another that makes us unique? DNA and Genes is what makes every person up. Everyone is different because of it. Humans are different from each other by their skin color, their facial features, and it’s all due to Deoxyribonucleic Acid. DNA or Deoxyribonucleic Acid is a molecule that contains the genetic instructions that are used in the functioning, the development, and the reproduction that
Bionics and Prosthetics In all of the scientific accomplishments this world has produced, one of the most miraculous is the innovation of prosthetic limbs. From the time of the ancient pyramids man has been able to fashion limbs for those missing them. These practices have been used to better the lives of those injured in accidents and that of wounded veterans. The advancements of these devices has been nothing short of miraculous. These devices started in order for those injured in war to be