To Investigate The Effect Of Phosphate On Cell Division In Root Tips.

1563 words - 6 pages

Planning ExerciseAimTo investigate the effect of phosphate on cell division in root tips.Background knowledgePhosphate ions (macronutrients) are needed large amounts by plants. They are required for root growth. For the root tips cells to divide, mitosis has to occur. Phosphate is needed for production of ATP which provides energy for mitosis to occur.DNA replication occurs during interphase of the cell cycle. DNA is made up of nitrogen containing base, pentose sugar and phosphate group. The phosphate group forms part of the sugar phosphate backbone of DNA. Phosphate is therefore necessary in DNA replication.During root growth, membranes also grow and they are made of phospholipids bi-layer which contains phosphates. Therefore, phosphates are needed their membranes to grow.Mitosis is the process in which a eukaryotic cell's nucleus divides into two identical daughter nuclei.There are five stages in mitosis.1. Interphase, in this stage the DNA in the nucleus replicates. Therefore, the chromosomes consist of two identical chromatids each. However, they are invisible.2. Prophase, in this stage chromosome becomes visible as they become shorter and thicker. Replicated centrioles move opposite poles of nucleus and a spindle is formed. Nuclear envelope and nucleolus disappear. Chromosomes become visible and the two chromatids are attached to each other at centromere.3. Metaphase, in this stage chromosomes are attached to spindle by centromeres and line up across the equator. Chromosome separates at the centromere and the chromatids are pulled apart.4. Anaphase, in this stage, chromatids are pulled by the microtubules and move to opposite poles.5. Telophase, in this stage, chromatids reach the poles of the spindle and nuclear envelope reforms as well as nucleolus. The spindle eventually disappears. Nucleoli reappear. Mitosis is completed.HypothesisMy hypothesis is that as there is more concentration of phosphate, the higher level of mitosis in root tips is.PredictionWhen there is no phosphate presents in solution, there will be no mitosis end of root tip cells. This is because there is no phosphate for DNA replication or to make ATP or for the growth of membranes.When there is phosphate presents in solution, there will be mitosis end of root tip cells. This is because there is phosphate for DNA replication or to make ATP or for the growth of membranes.Therefore, the concentration of phosphate ions in solutions is proportional to the number of cells undergoing mitosis.Input variableThe input variable for this experiment is the concentration of phosphate. This is because the input of the concentration of phosphate will be different at each experiment.Output variableThe output variable for this experiment is the number of mitosis occurring in the root tips.Fair testI am going to use the nutrient solution which does not contain phosphate as a control. Therefore it proves that without phosphate, the process of mitosis would not occur.The external factors such...

Find Another Essay On To investigate the effect of phosphate on cell division in root tips.

Investigate the Effect of Varying Solution Concentration on Osmosis in a Potato Chip

4330 words - 17 pages Investigate the Effect of Varying Solution Concentration on Osmosis in a Potato Chip Prediction A definition of osmosis is: 'the movement of water molecules from an area of high water concentration to a low water concentration across a semi-permeable membrane' (Oxforddictionary 2000). In a high concentration of water the amount of solute (e.g. sugar) is low. These solutions are usually known as a dilute or weak solution. But in a low

To investigate the effect of surface area on the rate of reaction using the enzyme Catalase, found in potato, and the substrate Hydrogen Peroxide

541 words - 2 pages Hydrogen peroxide has an acidic pH which will break down into water which has a neutral pH. This may effect the enzyme action as many enzymes work faster in a neutral environment, the only control over this is the fact that it will happen in each test and to consider its effect at the end of the experiment. I will need to use the same potato and cut a fresh chip at each stage of the experiment as the catalase may become effected by exposure to

To investigate the effect of surface area on the rate of reaction using the enzyme Catalase, found in potato, and the substrate Hydrogen Peroxide

2672 words - 11 pages substrates are bonded to make one product causing an anabolic reaction.There are five factors that effect enzyme activity. They are:·Temperature·pH·Inhibitors·Substrate Concentration·Enzyme ConcentrationThe factor I am changing is surface area of potato containing Catalase. By increasing the surface area of the potato, you make more Catalase molecules be exposed to hydrogen peroxide. This will result in the rate of

The Effect of Cell Phones on Health

1573 words - 6 pages our lives. Mostly, the effect has been positive in many ways. But, as it is with anything, overuse and abuse has brought out its dark side and the effect of unintended consequences. One of the unintended consequences of the cell phone is its effect on the health of its users and even the health of those around them. What is the effect of the cell phone on our health? Researchers are examining the health risks associated with cell phone use

The Effects of Varying, Extreme Temperatures and Varying Organic Solvents on a Beet Root Cell Membrane

763 words - 4 pages from -20º C to 70º C) on the cell membrane (Bio. Sciences Dept., 2013). Studies have shown that the development of a membrane is greatly altered when exposed to temperatures below zero, which soon leads to cell lysis (Willing and Leopold; 1982). Cell lysis would be an explanation for the highest amount of betacyanin leakage, when, the beet root was submerged in a -20º C environment, when compared to the other higher temperatures which did not

Investigate the effect of temperature change on the rate of hydrolysis

479 words - 2 pages conditions of reaction I intend to investigate the effect of temperature change on the rate of the hydrolysis of starch, using the enzyme amylase. In order to do this while also ensuring a fair test, I shall maintain all other latent variables constant. PREDICTIONS: I expect that the time taken to evolve a set volume of gas will decrease as the concentration increases. This, in other words, means that to increase the concentration

Vibrational data discussion on the Adsorption of Phosphate on Pt(111) and Pt(100) studied in situ FTIR spectroscopy

815 words - 3 pages of phosphate species on a single crystal platinum was studied. The pH range was between 1.03 and 12.7. With an increased potential on polycrystalline platinum, the phosphate species became more protonated.From the spectroscopy viewpoint, it may seem difficult to investigate the phosphate adsorption because of the polyprotic nature of phosphoric acid. This would make several anionic species in the adsorption process. It is therefore very important

Coursework and practical plan for title "Investigate the effect of temperature on the action of the enzyme diastase on starch."

1003 words - 4 pages For my investigation, I plan to examine the effect temperature has on enzyme action involving the biological catalyst- diastase, and its substrate- starch. In lesson, I have conducted a preliminary experiment to give me an idea of what to expect and a chance to conduct the experiment before hand. From my preliminary work I believe that an equal amount of substrate (Starch) with an equal amount of enzyme (Diastase) should finish reacting at

The Effect Of Temperature On a Cell Membrane's Permeability

1160 words - 5 pages Aim:This experiment aims to determine what effect an increase in the surrounding temperature has on the plasma membrane of a typical plant cell structure.Hypothesis:An increase in temperature will damage and denature the plasma membrane and cause the cytoplasm and other substances contained within the membrane to leak out.Introduction:The purpose of a cell membrane is to control the transport of substances moving into and out of a cell. The

Essay on the square root of 2

561 words - 2 pages √2Although it wasn't Pythagoras himself who discovered the square root of two and the changes it caused to Ancient Greek mathematics as well as the future of mathematics, his follower did and because of this he is mainly accredited. It is not believed that Pythagoras himself who revealed this mathematically changing idea because it went against his philosophy that all things are numbers. It was in reality a Pythagorean philosopher Hippasus

An analysis to investigate the extent of the influence of environmental and genetic factors on intelligence

1281 words - 5 pages An analysis to investigate the extent of the influence of environmental and genetic factors on intelligenceWhat is intelligence? If this question is asked to many different people, the possible answers could be the level of understanding of complicated opinions, accustoming to the circumstances, learning and reasoning skills, capability of solving problems etc. There are a lot of definitions for intelligence; however no conceptualization has yet

Similar Essays

Investigate The Effect Of Temperature On Cell Membranes And Membrane Structure

2132 words - 9 pages Investigate the Effect of Temperature on Cell Membranes and Membrane Structure If you read a recipe for cooked beetroot it will usually recommend that you don’t remove the outer skin of the beetroot and don’t cut off al the stalk and root if you want to avoid getting lots of red dye in the cooking water. Beetroot contains red pigments called betalains, located within the cell vacuole. Normally the pigments can’t pass through membranes

Procedure To Investigate The Effect Of Temperature On Beetroot

717 words - 3 pages Aim: to investigate the effect of temperature on the cell membrane structure. Hypothesis: I predict that more concentration of betalains will be released as the temperature increases because the temperature will soften the cell vacuole and cell membrane allowing more betalains to pass through. Introduction: Beetroot contains red pigments called betalains, located within the cell vacuole. Normally the pigments cannot pass through the

To Investigate The Effect That Surface Area Has On The Rate Of Reaction

1130 words - 5 pages Aim: To investigate the effect of increasing surface area on the rate of reaction.Background information: Hydrogen peroxide is a chemical that consists of hydrogen and oxygen. Its chemical formula is H O . It is a colourless, syrupy liquid that has a sharp odour. It is unstable. Peroxidase is an enzyme which catalyses the reaction. Catalase is an enzyme present in the cells of plants and animals. It is an aerobic (requires oxygen) bacteria. It

"Experiment To Investigate The Effect Of Osmosis In Potatoes" A Gcse Experiment Looking At The Effects Of The Concentration Of Sucrose Solution On Osmosis In Potato Tubers

2796 words - 11 pages low water concentration.The water content of plants varies depending on environmental conditions. In Land plants this water plays a vital role in the support of tissues and the transport of materials around the organism. Lack of water leads to wilting and eventually death. Water is mainly absorbed through the roots, which are covered in specially adapted root hair cells, with large surface areas and thin cell walls to aid absorption. It is drawn