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  • Normal Red Blood Cells
    339 words
    What is sickle cell anemia? Sickle cell anemia is an inherited disease of red blood cells. Normally red blood cells contain a protein called hemoglobin A, which carries oxygen to all the organs in the body. With sickle cell anemia, however, the body makes a different kind of protein, called hemoglobin S. The problem is that when a red blood cell with hemoglobin S releases oxygen, the cell changes from the usual doughnut shape to a sickle or S shape, and becomes stiff rather than soft and flexibl...
  • Transportation Materials Through The Cell Rough Er
    440 words
    ANIMAL CELLS ANIMAL CELLS My cell is the animal cell It really depends on which cell you are talking about - different cells do different things. Such as skin cells. They form a barrier on the outside of the body which protects the organs and tissues inside. It stops them getting damaged by bumps and knocks and also prevents bacteria and viruses from getting into your body. The cells structure, contains the Cell Membrane keeping the cell together and controlling what substances go in and out, Cy...
  • Immune Response O Antibody A Globular Protein
    437 words
    State the types of organism that can cause disease o Caused by a variety of organisms Bacteria Fungi V Explain how skin and mucous membranes act as barriers against microbes o the skin, with its tough layer of keratin, is an impregnable barrier as long as it is intact. When it is not, large numbers of micro organisms gain ready entry to the body. o Epithelium that forms mucous membranes is more fragile than the skin is constantly flushed with fluids, such as mucus, saliva and tears, that contain...
  • Immune Cell
    460 words
    You live in a world of germs and you " re at war. Your body's constant, warm environment, rich in nutrients, is an ideal home, where tiny organisms can thrive. Their aim is to get in. Your body's job is to keep them out. Through advances in cancer research, scientists now believe more than 100 million immune cells exist. For every virus or bacterium, there seems to be an immune cell specifically designed to hunt down and destroy it. But what happens when you are born without this ability The imm...
  • Different Animal Cell Slide
    519 words
    Introduction: The Cell, the fundamental structural unit of all living organisms. Some cells are complete organisms, such as the unicellular bacteria and protozoa, others, such as nerve, liver, and muscle cells, are specialized components of multicellular organisms. In another words, without cells we wouldn't be able to live or function correctly. There are Animal Cells and Plant Cells. In Biology class the other day we studied the Animal Cell. We were split into groups of our own and we each pic...
  • Cell Repair Machines
    1,235 words
    In Pursuit of Forever Although it is certainly an important operative factor, the commonly-interpreted explanation of aging and death, a sort of simple degeneration of the body's mechanical and chemical systems through time and usage, does not apply very well to the truth. The human body replaces every constituent atom naturally every seven years. Unlike machines, our bodies are in a constant state of self-repair and regulation, and it is the breakdown of the systems that govern these activities...
  • Chemical Increases The Amount Of Cigarettes
    598 words
    Deduction and Induction Analysis of Cigarette Smoking Smoking: Deduction Cigarette smoking causes cancer, which leads to death. Nicotine is one of the many chemicals found in the tobacco plant used in cigarettes. It reacts with the brain resulting in addiction. Nicotine enters the body and is transported to the brain; chemically, it stimulates the brain to produce more adrenaline, which in turn gives the body a surge of energy. One the effects of nicotine lessen, the brain functions are disrupte...
  • Energy To Every Cell In Our Bodies
    2,194 words
    Melatonin And The Pineal Gland Set deep in our brains is a tiny gland called the pineal gland. This tiny gland is in charge of the endocrine system, the glandular system that controls most of our bodily functions. The pineal runs our OE body clocks', and it produces melatonin; the hormone that may prove to be the biggest medical discovery since penicillin, and the key to controlling the aging process. The pineal gland controls such functions as our sleeping cycle and the change of body temperatu...
  • Adult And Embryonic Stem Cells
    420 words
    The history of research on adult stem cells began about 40 years ago. In the 1960's, researchers discovered that the bone marrow contains at least two kinds of stem cells. One population, called stem cells, forms all the types of blood cells in the body. A second population, called bone marrow stroma l cells was discovered a few years later. Stromal cells are a mixed cell population that generates bone, cartilage, fat, and fibrous connective tissue. Also in the 1960's, scientists who were studyi...
  • Normal And Cancer Cells
    1,158 words
    Introduction to Cancer The individual unruly cell that has escaped the normal regulatory control mechanisms is the basic unit of cancer. Inside the nucleus is a substance called DNA, which contains genetic information for the body, organized in units called genes. These genes contain the complete plans for the body. They determine weather you have a blue or a green eye, weather you will have two or four legs, etc. They send out information that tells the cell what chemicals to make, as well as h...
  • Human Cell And A Human Body
    1,225 words
    Compounds That Compose the Human Body There are five major groups of compounds that compose the human body. They are carbohydrates, lipids, proteins, nucleotides, and water. These are all very important to humans and without them we would not be able to survive. They have many functions that encourage a human cell and a human body to function. Carbohydrates include sugars and starches, contain carbon, hydrogen, and oxygen which appears in a ratio of 1: 2: 1. Carbohydrates are classified accordin...
  • Body Cells
    313 words
    Carbohydrates supply us with the energy needed in our daily activity. Carbohydrates are essay to convert to glucose, the fuel for body cell. Lacking glucose will direct affect to our moon and behavior. Simple sugar and complex carbohydrates are the two major forms of carbohydrates. Proteins are repairing bone, muscle, skin, and blood cells. Proteins are also protecting us from disease, such as enzymes control chemical activities in the body, and hormones govern body functions. Proteins help in t...
  • Antigen In Red Blood Cells
    677 words
    There are two different responses produced by the immune response in mammals. There is the "Cell mediated" response, and there is the "antibody response". First we shall deal with the Cell mediated response. This response is based upon the help of T-Cells. There are various types of T-cells which all have different jobs in the system. The cell mediated response is mainly utilised in defence against intracellular pathogens, such as vir i and fungi (and some bacteria). The T-cell precursors are pr...
  • Message To The Cell Body
    613 words
    The nervous system is composed of two main cell types the neurons and glial cells. Neurons transmit nerve messages and glial cells are in direct contact with neurons and often surround them. The basic function of the nervous system is as follow. They receive sensory input from internal and external environment, the integrate the input a they respond to stimuli. The nervous system also consists of senses. These senses are: pain, vision, taste, smell, and hearing. The neuron is the functional unit...
  • Imbalances Of Chemicals In The Endocrine System
    490 words
    The foundations of the Endocrine System consist of hormones and glands. These glands are ductless and their secretions are sent through the bloodstream. Endocrine glands also control bodily metabolic activity. The major glands that make up the human endocrine system are the hypothalamus, pituitary, thyroid, parathyroids, adrenals, pineal body, the pancreas, and the reproductive glands, which include the ovaries and testes. The endocrine system has three basic functions, regulate metabolic functi...
  • Tube Within A Tube Body Structure
    361 words
    EARTHWORM: Kingdom Animalia Phylum Annelida Class Oligochaete The earthworm is the best-known member of the phylum Annelida, the segmented worms. Annelids are bilaterally symmetrical, and their bodies are divided into segments both externally and internally. They have a tube-within-a-tube body structure. The outer tube is the body wall, while the inner tube is the digestive tract. The cavity between the outer and inner tubes is the coelo m. CIRCULATORY SYSTEM As food is digested, the blood in th...
  • Two Daughter Cells Following Telophase II
    319 words
    Gametogenesis begins in the seminiferous tubules of the testis, in human males. Meiosis begins with a diploid cell, spermatogonium, which divides through mitosis. The spermatogonia accumulate cytoplasm and replicate DNA. They are then called primary spermatocytes. In meiosis I, the primary spermatocytes' chromosomes undergo synapsis, in which homologous pairs of chromosomes find each other, during Prophase I. Crossing over also takes place during Prophase I. In Metaphase I, independent assortmen...
  • Enemy To T Helper Cells
    2,017 words
    Defence is an issue that has to be given top priority by a country for the continuance of its existence. Nations have always to watch out for all kinds of internal and external threats, assaults, risks of wars and terrorist actions. This is why they allocate a great part of their official budgets to defence. Armies are provided with the most advanced aircraft, ships, and arms, and the forces of defence are always kept at the highest level of preparedness. The human body is surrounded by a great ...
  • Radical Change Of The Cells Electrons Movement
    548 words
    Acupuncture is acupuncture Acupuncture Acupuncture is a method of encouraging the body to promote natural healing and to improve functioning. This is done by inserting needles and applying heat or electrical stimulation at very precise acupuncture points. The classical Chinese explanation is that channels of energy run in regular patterns through the body and over its surface. These channels, called meridians, are like rivers flowing through the body to irrigate and nourish the tissues, blood fl...
  • Cell Mass Of 2 Millimeters In Diameter
    507 words
    Cells inside of our body are under strict genetic control. If the genes controlling our cells become mutated, the cells can become disorganized by losing their function and dividing abnormally at less restraint than their neighboring normal cells. This activity causes the cells to fail to fully mature. Within our cells, we have regulatory proteins that perform such functions as correcting damaged genes. Other proteins indicate to a cell that division must cease so it can mature. A mutation of th...

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