Nucleus * Largest organelle * Houses the majority of the cells genetic information. * Has instructions for making proteins - * Some of which regulate cell activity Within the nucleus- Structure - | Function - | * Dark patches shown when stained are called Chromatin(s) | * Chromatins consist of DNA and proteins. In mitosis condense and become visible chromosomes. | * Surrounded by Nuclear envelope | * Phospholipid bi-layer with fluid between them with pores
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Each cell can be regarded as a metabolic compartment‚ as separate place where the chemical processes of that cell occur‚ the cell is made up of different organelles each specifically designed to carry out their function‚ and this is known as a cells ultrastrucure. All cells have a cell surface membrane; these are made up of phospholipids and make up a bilayer. A phospholipid has a hydrophilic head and a hydrophobic tail which is made up of 2 fatty acid chains; these are arranged is two layers with
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Introduction Genetics: the science‚ which deals with the principles of heredity and variation. Heredity: transmission of characters from parents to their off spring. Variation: Differences for various characters among the individuals of the same species. Types of variation: 1. Environmental and 2. Hereditary 1. Heredity variation: Variation observed among the individuals of the same species due to difference in their genetic constitution is termed as heredity variation. 2. Environmental variation:
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Introduction: Proteins are necklaces of amino acids – long chains molecules. Proteins are the basis of how biology get this done. As enzymes‚ they are the driving force behind all the biochemical reactions which make biology work. As structural elements‚ they are main constituents of our bones‚ muscles‚ hair‚ skin‚ and blood vessels. As antibodies‚ they recognize invading elements and allow the immune system to get rid of the unwanted invaders. For these reasons‚ scientists have sequenced the
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Chloroplasts are organelles present in plant cells and some eukaryotic organisms. Chloroplasts are the most important plastids found in plant cells. It is the structure in a green plant cell in which photosynthesis occurs. Chloroplast is one of the three types of plastids. The chloroplasts take part in the process of photosynthesis and it is of great biological importance. Animal cells do not have chloroplasts. All green plant take part in the process of photosynthesis which converts energy into
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The nucleus is the most obvious organelle in a eukaryotic cell. Virtually all eukaryote cells have a nucleus (red blood cells lose theirs and so are enucleate for most of their life-span of 180 days). It is surrounded by the nuclear envelope‚ a double membrane with contains a large number of pores. Molecules enter and leave the nucleus by these pores. The two lipid bilayers of the double membrane are separated by a gap of 20 to 40 nm‚ called the perinuclear space. The nucleus contains the cell’s
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Proteins Are the basic materials of every body cell. Body cells are constantly wearing out. As a result‚ they are continuously in need of replacement Of the six nutrients group‚ only proteins can make new cells rebuild tissue. By the age of 4 years‚ body protein content reaches the adult level of about 18% of body weight. An adequate supply of proteins in the daily diet is essential for the maintenance of health. The word protein is a Greek derivation and means “of first importance”. Composition
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Effect of Protein Intake on Strength‚ Body Composition and Endocrine Changes in Strength/Power Athletes Introduction: Proteins are often called the building blocks of the body. Protein consists of combinations of structures called amino acids that combine in various ways to make muscles‚ bone‚ tendons‚ skin‚ hair‚ and other tissues. They serve other functions as well including nutrient transportation and enzyme production. Adequate‚ regular protein intake is essential because it isn’t easily
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day with his family‚ personal development and the working balance between the three above; thus he encourages people to make this vision a reality. And I have four observations I’d like to share with you today. My whole take away from this is if you want to achieve work-life balance you need to: 1) 1. Be honest But the trouble is so many people talk so much rubbish about work-life balance.‚ face reality is acknowledging the reality of the situation you’re in. (If you feel that your life is unbalanced
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Gung-Ho means “Work together” Introduction Gung Ho demonstrates a cross-cultural relationship between the Americans and the Japanese people working together towards the goal. In this movie‚ a Japanese car manufacturer company takes over an American car manufacturing plant. The American workers were in conflict with the Japanese style of management. Situation Hunt Stevenson takes the leadership role and becomes the liaison between the Japanese executive team and the American workers. At first
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