Of Sucrose And

Albert Jung
Albert Jung
Albert Jung Abstract: This lab assignment is to observe certain substances and observe its physical and chemical changes in different environmental conditions. We first observed its physical properties, such as physical state and color and recorded it on paper. Then we did different types of experiments on some of the substances and observed the chemical changes. Some of the chemical changes where endothermic, exothermic, changes in color and changing of its physical state. We recorded the obse
Documentation of Competency
Documentation of Competency
Documentation of Competency Objective: I Atom - the smallest component of an element having the chemical properties of the element Example: the formation of a sodium chloride crystal Molecule - The smallest part of any substance which has the qualities of that substance, and which can exist alone in a free state. Example: a molecule of water consists of two atoms of hydrogen and one of oxygen. Organelle - A cell structure that carries out a specialized function in the life of a cell. Example: t
The Rate of Diffusion and Osmosis of Various Solutions With Distilled
The Rate of Diffusion and Osmosis of Various Solutions With Distilled
The Rate of Diffusion and Osmosis of Various Solutions With Distilled Water as an Ambient Environment Throughout the process of the experiment, various concentrations of a solution of Sucrose and Water were placed into hydrolysis tubing and placed into and ambient environment of sterile water. An observation of a Starch solution in an ambient solution of sterile water and iodine was done to check for a chemical reaction of starch and iodine indicating diffusion. Also an observation of two segmen
Plan
Plan
Plan My experiment is to investigate the effect of osmosis on potato tissue. In this experiment there are two variables (things that change to effect the results), which are; the mass change and the length change of the potato chip. From a preliminary experiment that I did, the results showed me that there was a large mass change in the chips and the length hardly changed at all. This shows that to be able to obtain some good results I will need to measure the change in mass. Using the results f
Osmosis and Diffusion in Plant and Animal cells
Osmosis and Diffusion in Plant and Animal cells
Osmosis and Diffusion in Plant and Animal cells A) 4. The cell membrane of a plant in a hypotonic solution expands and in a hypertonic solution, the cell membrane shrinks. 5. Cells do not burst when placed in a hypotonic solution because the cell wall does not give way. The cell wall is a strong wall to keep the structure of the cell. B) 2(a). Nothing happened to the blood cell in a botanic solution (b). When water is added to the blood cells the cell membrane expands and sometimes bursts (c). W
Nutrition Assignment
Nutrition Assignment
Nutrition Assignment Explain to the athlete the ingredient of their diet. Give details of macro and micro nutrients and supplementation. For an athlete a well balanced diet is essential, they need all types of macro and micro nutrients to help fuel exercise and help repair/restore the body back to pre-exercise state. Macro nutrients are needed in large quantities and come in the form of carbohydrates, fats and proteins. Micro nutrients are needed in much smaller quantities like vitamins and mine
Transgenic Rice Plants
Transgenic Rice Plants
Transgenic Rice Plants For centuries, rice has been one of the most important staple crops for the world and it now currently feeds more than two billion people, mostly living in developing countries. Rice is the major food source of Japan and China and it enjoys a long history of use in both cultures. In 1994, worldwide rice production peaked at 530 million metric tons. Yet, more than 200 million tons of rice are lost each year to biotic stresses such as disease and insect infestation. This ext
Evolution has by necessity allowed the survival of the fittest Primiti
Evolution has by necessity allowed the survival of the fittest Primiti
Evolution has by necessity, allowed the survival of the fittest. Primitive man had to forage and hunt for food from nature. Therefore, humans developed keen taste receptors for fat-rich, caloric foods. Because the availability of food was uncertain, those who had stores of fat in their bodies, would be more able to survive the harsh conditions of primitive life. In modern times, we still have the same though weakened taste receptors of primitive man. Thus, we still have the affinity for sugar b
Sugar A Provider of Many Things
Sugar A Provider of Many Things
Sugar: A Provider of Many Things Sugars are a part of the carbohydrate group of foods. There are three types of simple sugars : Sucrose, Fructose and Glucose. These occur in significant amounts in fruits, vegetables and other types green plant life. All food energy comes from the sunís effect on green plant life. The plants convert the sunís energy into sugars and starches. As the human body cannot convert the sun's energy, it relies on the energy derived from plants. Carbohydrates, fats and pr
Carbonhydrate
Carbonhydrate
Carbonhydrate INTRODUCTION A theme that we have seen and studied in this class is that a particular form or structure of a molecule plays a significant role in the function of that molecule. Since we are interested in the function of molecules. it helps to study their structure. One of the major classes of organic compounds found in cells are carbohydrates. These carbohydrate are made of carbon, hydrogen, and oxygen in a ratio of 1:2:1 respectively with a general formula of X(CH2O)n. When the ca
Dietary Guidelines for North Americans and Suggestions for Food Choice
Dietary Guidelines for North Americans and Suggestions for Food Choice
Dietary Guidelines for North Americans and Suggestions for Food Choices In today's society nearly everyone follows some kind of dietary guidelines. Whether it is in the goal of losing weight, gaining weight or just simply to maintain it, people are jumping onto the dietary band-wagon. A diet is basically to take food according to rule, a mode of living in reference to nourishment. There are various types of diets that one can follow; a high or low calorie diet, low fat diets, diets modified in p
Diverrsity of Plants
Diverrsity of Plants
Diverrsity of Plants Plants evolved more than 430 million years ago from multicellular green algae. By 300 million years ago, trees had evolved and formed forests, within which the diversification of vertebrates, insects, and fungi occurred. Roughly 266,000 species of plants are now living. The two major groups of plants are the bryophytes and the vascular plants; the latter group consists of nine divisions that have living members. Bryophytes and ferns require free water so that sperm can swim
How Nutrients Get in and Wastes Out
How Nutrients Get in and Wastes Out
How Nutrients Get in, and Wastes Out. By Faisal Premji Science 10 Assignment -- Part B In a human being, nutrients are necessary for survival. But how are these nutrients obtained? This report will go into depth on how the food we eat gets into our cells, and how the waste products that we produce get out of the body. Also, the unicellular organism Paramecium will be compared with a human being, in terms of all of the above factors. Dietary Nutrients The chief nutrients in a diet are classified
New Developments or Research in Genetic Cloning Summary
New Developments or Research in Genetic Cloning Summary
New Developments or Research in Genetic Cloning: Summary Since genetic cloning is a very wide topic, the focus of my paper lies mainly on the new discoveries which might be beneficial to human beings. The focus of the first section of the paper is on the various cloning techniques geneticists use nowadays. They techniques included range from the simplest and suitable for all situations, to complicated and suitable for certain areas. The second section of the paper, the longest section, discusses
The Relationship Between Food Concentration and Respiratory Activity
The Relationship Between Food Concentration and Respiratory Activity
The Relationship Between Food Concentration, and Respiratory Activity In this experiment different concentrations of sucrose were tested to determine which leads to the most respiratory activity in yeast. Yeast is a heterotrophic anaerobic fungus which lacks chlorophyll. Yeast is used commercially to ferment the sugars of wheat, barley, and corn to produce alcohol, and in the baking industry to raise or expand dough. Yeast or alcoholic fermentation is the anaerobic process of respiration by whic
Involvement of K in Leaf Movements During Suntracking
Involvement of K in Leaf Movements During Suntracking
Involvement of K+ in Leaf Movements During Suntracking Introduction Many plants orient their leaves in response to directional light signals. Heliotropic movements, or movements that are affected by the sun, are common among plants belonging to the families Malvaceae, Fabaceae, Nyctaginaceae, and Oxalidaceae. The leaves of many plants, including Crotalaria pallida, exhibit diaheliotropic movement. C. pallida is a woody shrub native to South Africa. Its trifoliate leaves are connected to the peti
Tuber Cells
Tuber Cells
Tuber Cells 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. #61623; Specimen tubes with stoppers x6 #61623; 1cm3 diameter cork borer #61623; razor blade #61623;
Neurospora Crassa
Neurospora Crassa
Neurospora Crassa Throughout our science education, as students we have always wondered how genes are regulated in a given organism. To better understand biological processes in organisms we can take a look at a biological circuit, a term borrowed from electrical engineering that illustrates the interconnections among proteins or genes (1). Circuits can describe connections needed to regulate a single gene or an entire genome. Through a circuit we can visualize important components and reactions