I. Describe the structure and function of the nucleus and mitochondria. The mitochondria is a semi-autonomous organelle which reproduces by bynary fission and has its own DNA. Its main function is to produce the energy intermediate ATP‚ through ATP synthase. Mitochondria could be considered a cell inside a cell. It has its own membranes (inner and outer membranes)‚ its ribosomes (to produce the proteins encoded in its DNA)‚ a matrix -- where aerobic respiration occurs. The invaginations of the inner
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gets to a plants cell by diffusion. Both stems and roots contain xylem vessels and phloem tubes. In a stem these are grouped into vascular bundles arranged in a ring. In a root these are arranged in the centre forming a structure called the stele. Xylem tissue has the dual functions of support and transport. It contains several different types of cells these are vessel elements‚ traceids‚ fibres and parenchyma cells. In contrast to this phloem tissue is living and comprises of sieve tubes‚ phloem
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FOREST ECOSYSTEM Submitted by: Submitted to: Forest Ecosystem Table of Contents (Outline) I. Introduction II. The Structure of Forests III. Kinds of Forest IV. The Distribution of the Forests V. Forests Succession VI. The History of Forests VII. Deforestation VIII. Conclusion IX. Endnotes X. Bibliography Forest Ecosystem I. Introduction A forest‚ also referred to as a wood or the woods‚ is an area with
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Court System Structure‚ Function and Jurisdiction Performance Assessment Task 4 Kelly Schoepke Introduction to Criminal Justice Phil Schmidt November 6‚ 2009 Over the years the U.S. court system has evolved into an intricately balanced legal process (Siegel‚ 354). The founding fathers of the nation considered an independent federal judiciary essential to ensure fairness and equal justice for all citizens of the United States. The American judicial system is made up of two separate court
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“The structures of body systems are determined by their functions”. Discuss this statement‚ focussing on the Circulatory System. You should include diagrams and relevant examples in your essay. In order to survive it is necessary for every cell in the body to exchange materials as not all cells are in contact with the external environment; we rely on the circulatory system to do this which is composed of the heart‚ blood vessels and blood. The heart consists of four chambers two atria and two ventricles
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Field investigation of an ecosystem Located 20km out of Portland; Bridgewater Bay has many secluded rock pool locations that are accessible to biologists for investigation. In this experiment‚ the aim was to study small sections of a rock poll that contained a distribution of organisms. These organisms that were located were found in the littoral zone of Bridgewater’s rocky seashore. A littoral zone is made up of a community of aquatic organisms habiting the narrow strip of coast. The organisms
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between ecosystem and ecology? Ecosystem is the physical system (an open system) in which the mutual interaction between biotic and aboitic component motored by the energy component is studied. While the Ecology is the science which study the interrelation between Abiotic (inorganic) and Biotic (organic) components as well as the interaction among the biotic component. To make it more clear‚ ecosystem is the fundamental unit of ecological study. Ecology vs Ecosystem Ecology and ecosystem are
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only function in certain pH and temperature levels specific to that enzyme. When levels rise or fall below these levels‚ it will affect the enzyme‚ and in turn the organism. At moderate level breaches the enzyme will not work properly‚ and at high level breaches the enzyme will break down‚ and the reaction will never occur. This could kill the organism that the enzyme belonged to. In this lab‚ the reaction of a potato enzyme‚ catalase‚ was measured by use of bubble height. The two abiotic factors
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Chapter 3 Cloze Notes CORNELL NOTES UNIT 2: Cells Directions: Create a Chapter 3: Cell Structure and Function minimum of 5 questions in this column per page I. Cell Theory (Section 3.1) (average). You can use these questions during class A. Early studies led to the development of the cell theory or tutorial to better understand a topic; or at home to better understand 1. Discovery of Cells your notes and prepare for tests and quizzes. a. Robert __________ (1665)—Used compound microscope to
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Biotic is anything that is living and Abiotic is anything that is non-living. An example of biotic factor from the movie would be a Pig‚ Dinosaur‚ and Birds. An example of an abiotic factor would be Rocks‚ Building‚ and water. A Purebred animal is an animal that is its own breed and isn’t mixed with any other animal. A hybrid is an altered animal or an animal that is a mixed breed. An example of a hybrid would be the Indominus Rex. The rex was designed and altered by scientist in the lab.
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