CELL THEORY – STEM CELLS Stem cells are a large focus of study in today’s biomedical world. “They are cells that exist in an undifferentiated state‚ and transform into differing tissue types depending on what the cells surrounding them are‚“ (National Institute of Health‚ 2012). Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition‚ they also serve as an internal repair mechanism inside many tissues‚ dividing without
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Stem cells Nowadays‚ stem cells are the hottest topic in the medical field. More and more researches are performed to investigate these mystic cells. In order to go deeper into this topic and fully understand it‚ let’s first take a look at the stem cells themselves‚ their origins and characteristics which make them so unique and crucial for the medical field. Stem cells are very complex and complicated‚ and‚ that is why‚ it takes a lot amount of time to get to the bottom of their structure to be
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Human Disease Several scientific terms are relatively easy to define‚ others tend to be more difficult; “health” and “disease” fall under the latter category. Many suggest that “disease” is merely a disorder of a system’s normal functions while “health” is the absence of disease. On the other hand‚ could a person whose bodily systems are functioning properly but who is unhappy or depressed be considered healthy? Can an alcoholic or drug-addict whose habit has not as yet caused any physical harm
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Chronic Diseases: Heart Disease Heart disease is the most frequent condition affecting the heart‚ known as coronary artery disease. Over time‚ a buildup of cholesterol creates a substance of plaque on the inside of the coronary arteries blocking the blood flow to the heart causing it to damage the heart muscle. When a heart attack occurs‚ it creates permanent damage killing a portion of the heart. If the heart cannot effectively pump blood to the body‚ it will reduce the flow‚ and begin beating
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This paper is about how the plant cells and solar cells are similar to each other as well as how they are different to one another. In addition this paper explains how the laws of thermodynamics apply to each of the plant and solar cells system. Plant Cells and Solar Cells Photosynthesis is the process of producing and releasing oxygen in the air. It needs sunlight‚ carbon dioxide and
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and animal cells have several differences and similarities. For example‚ animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed‚ rectangular shapes. Animal Cell Plant Cell Cell wall Absent Present (formed of cellulose) Shape Round (irregular shape) Rectangular (fixed shape) Vacuole One or more small vacuoles (much smaller than plant cells). One‚ large central vacuole taking up 90% of cell volume.
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PLANT CELL AND ANIMAL CELL LECTURER : ENCIK AZHAR GROUP’S NAME : 2. Mohd Alimi 3. Suraya Hani 4. Norhaswana CONTENT INTRODUCTION 3 WHAT IS CELL? 4-5 HISTORY OF CELLS DISCOVERY 6 ANIMAL CELL 7 PLANT CELL
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question. Which disease types‚ autosomal dominant or autosomal recessive are generally more common / persistent in populations? Explain your answer. (Please do not guess or otherwise invent your answer! Rather‚ do some research and reading‚ i.e. Chap. 14!) Sickle cell disease is a autosomal recessive trait that occurs due to the single base substitution in DNA. Second: Demonstrate this principle by showing the population proportions for autosomal recessive and dominant diseases below. A: Autosomal
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Treatment for Neurodegenerative Diseases The McGovern Institute claims‚ “Brain disorders are among the most serious health problems facing modern society” (“Neurodegenerative Diseases and Brain Injury”). The term neurodegenerative refers to the progressive breakdown of nerve cells (Mandal). Due to the aging population‚ the demand for a definitive cure is on the rise. To date‚ a cure for this condition has not been discovered. However‚ research has revealed preventative measures that decrease a
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Communicable Disease: Communicable diseases‚ also known as infectious diseases or transmissible diseases‚ are illnesses that result from the infection‚ presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host. Infections may range in severity from asymptomatic (without symptoms) to severe and fatal. The term infection does not have the same meaning as infectious disease because some infections do not cause illness in a host. Disease causing
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