while the plant (Rheo discolor) is subjected to 0.3 M glucose. When the frog and mammalian bloods are subjected to 0.1 % NaCl‚ an influx of water occurs: the cells swell‚ the integrity of their membranes is disrupted‚ allowing the escape of their hemoglobin in the process of hemolysis because the solution is hypotonic. When 0.7% NaCl was added to the bloods‚ there is no net influx or efflux of water because the solution is isotonic. When 0.16 M NaCl was added to the bloods‚ the cells lose their normal
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Tetrapyrrole compounds: chlorophyll and heme groups By Erwin Lim 1. Tetrapyrrole compounds A tetrapyrrole compound is a chemical group that consists of four pyrroles that are joined together by covalent bonds‚ forming a porphyrin ring. They are naturally occurring pigments‚ which are used in many biological processes (Berg‚ 2009). The basic structure of a tetrapyrrole is as seen in Figure 1‚ while the basic structure of a pyrrole is as seen in Figure 2. Figure 1.Tetrapyrrole Compound (Berg
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participants. These classes were led by a dietitian‚ physician‚ and a cooking instructor. At 0 and 18 weeks‚ measurements on nutrient intake‚ anthropometrics‚ blood pressure‚ HDL‚ LDL and blood plasma cholesterol levels‚ triglyceride concentrations‚ and Hemoglobin A1c levels (in diabetic participants) were taken. For the control group‚ participants did not make any dietary changes and were not given any dietary instructions. They were compensated with a $50 gift certificate for participation and adherence
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H istory O f Pulse O xim etry Reno Reddick W hat is a Pulse O xim etry? ▪ Non-invasive method for monitoring a patient ’s O2 saturation ▪ Also measures the patient ’s heart rate ▪ instant results‚ rather than drawing blood from a patient and examining it in a lab. H ow is it used? ▪ a sensor is placed on a thin part of the patient ’s body – Fingertip – Earlobe Light of two wavelengths is passed through the patient to a photo detector changing absorbance at each of the wavelengths is measured
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are produced by differentiating pluripotent hematopoietic stem cells. Without B12‚ the growth and development of the erythrocytes occurs at different rates‚ with DNA synthesis lagging (Orton‚ 548). RNA and hemoglobin are produced normally; however‚ because the cell cycle is delayed‚ hemoglobin is overproduced‚ resulting in abnormally large‚ oval-shaped cells in decreased number and cellular lifespan (Huether‚ 503)‚ which cause the systemic manifestations of
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7. Unexplained Anemia Anemia refers to a low red blood cell count in the body. The hemoglobin in red blood cells carries oxygen throughout the body. Symptoms of anemia‚ such as pale skin‚ a fast or irregular heartbeat‚ shortness of breath‚ dizziness‚ and cold hands and feet‚ should not be taken lightly. Unexplained anemia may be due to colon
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Ch. 1: Biology: Exploring Life 1) Slides 1 and 2: What is the main difference between physiological adaptation (as in sense‚ respond and adapt to the environment) and evolutionary adaptation? Evolutionary adaptation occurs over generations. Evolutionary adaptation does involve genetic change but it’s the change in traits as a result of genetic change that drives natural selection and evolutionary adaptation (just genetic change alone won’t drive evolutionary change). Physiological adaptation is
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Blue Baby Syndrome Did you know that when nitrates interact with the hemoglobin in red blood cells turns the hemoglobin; which carries oxygen‚ forms a new substance called methemoglobin. Methemoglobin can’t carry sufficient oxygen to the body ’s cells and tissues. This doesn’t seem to be a problem in adults‚ but when it comes to infants it seems to be a problem. I am strongly persuaded that nitrate in well water has to deal with blue baby syndrome. According to two cases on Environmental Health
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Million cells per mm cube 9. What makes blood red? The hemoglobin makes the blood red. 10. How long does the average RBC live? They live for about 120-130 days 11. What hormone controls the rate of rbc synthesis? Erythropoietin 12. What element is part of a red blood cell? Calcium is a part of a red blood cell 13. What is sickle-cell anemia and what is its cause? A problem in the blood because an irregular hemoglobin. The cause of it is an inheritance. 14. What are the
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I. Genes a. Definition Segments of DNA molecules A nucleotide sequence b. Functions Control of hereditary traits Sequence coding for a polypeptide which maybe an enzyme‚ or a part of an enzyme‚ which in turn is responsible for a certain phenotype or trait. c. The Human Karyotype Ordered arrangement of chromosomes arranged in homologous pairs The chromosome complement of a cell or organism characterized by the number‚ size and morphological features of each chromosome II
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