Similarly, a negative value indicates a negative correlation and the lower the value the stronger the correlation. Hence, Ex represents the sum of the temperatures. Ey represents the sum of the average results. Similarly, Ey2 is the sum of all the results squared.
The PMCC demonstrates that the results show a very strong positive relationship between temperature and light transmission. Likewise, the graph also shows a positive correlation — a pattern that quickly became apparent early in the investigation. As the results show more beetroot pigment can leak out at higher temperatures, I can construe that cell membrane becomes more ruptured as temperature increases. This brings me to conclude that in beetroot, as temperature increases, light transmission decreases.
This means that the more betalaine beetroot pigment is released at higher temperatures, making the solution more concentrated, allowing less light transmission.
A colorimeter entails a light source, a filter to select the most appropriate wavelength, a photocell to interpret the light intensity and a digital display. The most suitable filter to use can be selected by choosing the one with the closest colour to match that of the solution being tested.
Filters are used to give light from a specific region. The ideal filter is the one which selects the range of wavelengths most strongly absorbed by the specimen. The pigment betalaine can be divided into betacyanins and betaxanthins based upon its molecular structure.
Betacyanins generally appear red to red violet in colour — they absorb in the nm range. Betaxanthins generally appear yellow in colour absorb in the nm range. They cause colour in flowers, fruits and sometimes vegetative organs. They are found in the vacuole and they are water-soluble. When beetroot is heated, the cell membranes are disrupted. A biological membrane is made of a phospholipid bilayer. These are formed because the phospholipids that make up the bilayer have a polar, hydrophilic water-loving head and a hydrophobic water-hating tail.
The tails pack together, exposing only the polar heads to the water. The most effective way of doing this is to create two layers one atop of the other, with the fatty acid tails towards each other. This is the phospholipid bilayer. The water around and within the compartments formed by the phospholipid bilayers is also crammed with protein the cytoplasm. When something is heated, it is given energy. Molecules start to spin and vibrate faster. Thus, the water will expand. This will have a disruptive effect on any membrane in its path.
Lipids become more fluid as temperature goes up like butter so the membranes become more fragile. Proteins are formed of coiled and folded strings of amino-acids, held together by hydrogen bonds and disulphide bridges. If you heat them too much, they will vibrate vigorously, causing them to untangle and break apart.
When this happens to the proteins spanning a lipid membrane, they will form holes that will destroy the delicate structure. Now, any pigments in the inner part of the cell, will spill out. Beetroot pigment betalaine is used commercially as a food dye.
What is the most abundant and important inorganic compound in living material? Which property of water is demonstrated when we sweat? A year-old man is admitted to the hospital for nonhealing pressure ulcers in his heels. He has been bedridden for 10 years because of a degenerative muscle disease. Which type of organic compound would be an important part of his diet to promote wound healing, and why?
Proteins, as they are the basic structural material of the body, and are essential for growth, repair, and maintenance of tissue. The major function of RNA is to carry out the genetic instructions for protein synthesis What is the primary energy-transferring compound of the body? Which of the following is not true of proteins? They appear to be the molecular carriers of the coded hereditary information. Which of the following constitutes a long chain of simple sugars? What level of protein synthesis is represented by the coiling of the protein chain backbone into an alpha helix?
Carbohydrates and proteins are built up from their basic building blocks by the removal of a water molecule between each two units. Which statement about enzymes is false? Enzymes raise the activation energy needed to start a reaction. A dipeptide can be broken into two amino acids by dehydration synthesis. Apoptosis is programmed cell suicide, but cancer cells fail to undergo apoptosis. Which of the following would not diffuse through the plasma membrane by means of simple diffusion?
The carbohydrate of glococalyx acts as a identification for the lipid membrane. Which of the following is a principle of the fluid mosaic model of cell membrane structure? Phospholipids form a bilayer that is largely impermeable to water-soluble molecules.
Osmosis- is the diffusion of a solvent, such as water, across a selectively permeable membrane. Which of the following is a difference between primary and secondary active transport: In primary active transport, the transport protein gets phosphorylated; in secondary active transport, the transport protein is not phosphorylated. Why is the selective permeability of the plasma membrane essential for normal cell function?
Selective permeability allows cells to exclude some substances and allow others to pass into or out of the cell. Your patient has the flu and reports 5 to 6 loose stools a day. He has experienced an isotonic fluid volume loss. Water and electrolytes are lost in equal proportions. You are giving a tap water enema to a patient. An adverse effect of the tap water enema is water intoxication. Why does tap water cause water intoxication? Tap water is a hypotonic solution, and thus more water moves into the body and the cells, causing water intoxication.
Which of the following statements is correct regarding diffusion? The greater the concentration gradient, the faster the rate of diffusion. Passive membrane transport processes include -movement of a substance down its concentration gradient. In osmosis, movement of water occurs toward the solution with the higher solute concentration. A process by which large particles may be taken into the cell for food, protection of the body, or for disposing of old or dead cells is called phagocytosis.
In certain kinds of muscle cells, calcium ions are stored in smooth er. Lysosomes contain acid hydrolases that are potentially dangerous to the cell.
The functions of centrioles include organizing the mitotic spindle in cell division. If you suspect that an individual is being abused, there are some necessary actions for you to take along with researching about what your companies policies and procedures around abuse are. Initially, if you suspect that a service user or worker is being abused, it is important, for you to take your assumptions seriously and remember that they are not meaningless. As a social care In the strong acid-weak base titration, 0.
Ammonium hydroxide was then titrated slowly into the conical flask and the conical flask Introduction Currently, fertilizers used on the West Coast are made and then transported from other parts of New Zealand.
Because fertilizers have a reasonably large mass the cost of this transport can be expensive. This report will investigate the processes involved in making superphosphate fertilizer, including the manufacture of sulfuric acid from sulfur using the contact process. Also in this report will be an outline Chewing is an extremely important, yet oftentimes overlooked, part of healthy digestion.
Most people put food in their mouth, chew a few times and swallow their food, as if their sole focus was how quickly they could get their foods to their stomachs. The action of chewing mechanically breaks down very large aggregates of food molecules into smaller particles. This results in the Aim To determine which of these: Hypothesis Propionic acid is going to be the most vicious because the stronger the intermolecular forces the more viscous.
Cell Membrane and Protein Synthesis. Get Full Essay Get access to this section to get all help you need with your essay and educational issues. Cell Membrane and Protein Synthesis Essay Sample Kinetic energy is energy in action, while potential energy is stored energy.
This is not an example of the work written by our professional essay writers. A cell is a dynamic and a complex structure surrounded by a membrane known as the plasma membrane. This acts like a barrier between the inside of the cell and the outside resulting in different chemical environments on the two sides.
Cell Membrane The Cell Membrane- The cell membrane is a semi-permeable membrane that surrounds the cytoplasm of a cell; the cell membrane is made up of phospholipids, proteins and carbohydrates.
A cell membrane is a very important component of a cell because it is the one that controls movement of substances in and out of a cell, hence protecting it from its environment. The experiment will be performed on a beetroot cell. Unlike most editing & proofreading services, we edit for everything: grammar, spelling, punctuation, idea flow, sentence structure, & more. Get started now!
How do membranes and cell walls that surround cells control the movement of materials in and out of living cells? Relate membrane and wall structure to such processes as diffusion, osmosis, pinocytosis and phagocytosis. The surrounding cell walls and membranes can control the materials that pass in /5(8). Free Essay: Cell Membrane Transport Hands-On Labs, Inc. Version Lab Report Assistant This document is not meant to be a substitute for a formal.