histological identification of various endocrine glands Background The endocrine system consists of cells and tissues that secrete chemical messengers‚ called hormones‚ into the blood. The hormones are transported in the blood‚ via the circulatory system‚ to target cells. Once the hormone reaches the target cells and binds to a specific receptor‚ either on the cell membrane or within the cell cytoplasm or nucleus‚ it can initiate a response that will facilitate homeostasis in the body.
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Significance of Discoveries in Genetics and DNA Robert Pride South University (Richmond) DNA- (deoxyribonucleic acid) the molecule that genes are made of. In 1953‚ James Watson and Francis Crick made the announcement that they had discovered the secret of life. They made this announcement in a pub in Cambridge. He was referring to the double helix of DNA. The discovery was the result of work put in by a large group of scientist but pieced together by both men who ultimately received most
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DNA and Crime Deoxyribonucleic Acid - the fingerprint of life also know as DNA was first mapped out in the early 1950’s by British biophysicist‚ Francis Harry Compton Crick and American biochemist James Dewey Watson. They determined the three-dimensional structure of DNA‚ the substance that passes on the genetic characteristics from one generation to the next. DNA is found in the chromosomes in the nucleus of a cell. "Every family line has it’s own unique pattern of restriction-enzyme DNA
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Learning Objectives Be able to: 1. 2. 3. 4. 5. 6. 7. Identify typical measurement systems used as an Industrial Engineer Define Measurement Systems Analysis (MSA) and the purpose in understanding variation. Define variation and the differences between Accuracy and Precision. Distinguish between part‐to‐part variation and measurement variation and the breakdown of repeatability and reproducibility. Describe the components of measurement variation including bias‚ stability
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CHARACTERIZATION OF PROTEINS Abstract Different techniques and principles for protein extraction and characterization were demonstrated in this experiment. Various proteins were extracted from different sources: 1.67 g yeast invertase‚ 1.03 g egg white albumin‚ and 5.15 g of milk casein. Activity assay for invertase was performed using Benedict’s test and the enzymes inverting action on sucrose was confirmed. Warburg-Christian Method and Bradford Assay were also employed to determine the protein concentration
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major dietary sources of each. a. Proteins b. Carbohydrates c. Fats . Janine made this statement: “… if your brain doesn’t get carbs—well‚ glucose‚ anyway—you get really cranky. You have to have enough carbs.” Find out if Janine is right. How does the nervous system use glucose? . Janine also said: “If you eat way too much protein and not enough carbs you can ruin your kidneys forever because of all the nitrogen you have to process breaking down the protein.” Find out if Janine is right about
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Study Guide 4 CH. 21 Genomics – the study of whole sets of genes and their interactions. Bioinformatics – is the application of computational methods to the storage and analysis of biological data Linkage Map – maps the location of several thousand genetic markers on each chromosome Physical Map – Expresses the distance between genetic markers‚ usually as the number of base pairs along the DNA Metagenomics – DNA from a group of species (a metagenome) is collected from an environmental
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their messages are dependent on and influenced by those of their partner (that is their messages are interdependent). Once a communication transaction has been completed and received it can’t be reversed nor repeated in precisely the same way. Ethics-study of morals specifically the moral choices individuals make in their relationships with others. Competent Communication is Process-Oriented=what & how Competent Communication involves-Communication skills & using technology CHP2 Challenges of Schemas
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Cell Structure and Function Chapter Outline Cell theory Properties common to all cells Cell size and shape – why are cells so small? Prokaryotic cells Eukaryotic cells Organelles and structure in all eukaryotic cell Organelles in plant cells but not animal Cell junctions History of Cell Theory mid 1600s – Anton van Leeuwenhoek Improved microscope‚ observed many living cells mid 1600s – Robert Hooke Observed many cells including cork cells 1850 – Rudolf Virchow
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The studies of Robert Hooke 1665 into a plant material would allow the determination of a pore like regular structure surrounded by a wall of which he called cells’ this in itself unbeknownst to him‚ was the discovery of the fundamental unit of all living things. In 1838 a botanist called Schleiden derived the theory The basic unit of structure and function of all living organisms is the cell.’ Over 150 years later this can be regarded as one of the most familiar and important facts within the
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