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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AN ASSIGNMENT ON CELL CULTURE [pic] ASSIGNED BY | | | |Dr. Md. Bahanur Rahman |Dr. Sukumar Saha | |Professor |Associate Professor | |Dept. of Microbiology and Hygiene
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Bio 1011 Cells Exam #1 Answer the multiple choice questions on the scantron sheet. Select the one choice that best answers the question. Answer the short answer questions in the space provided at the end of the exam. 1. Which of the following is the SMALLEST? a. a bacterium b. a ribosome c. a hexose sugar d. a water molecule e. a yeast cell 2. The four main families of small inorganic molecules in cells are a. salts‚ sugars‚ fatty acids‚ amino acids‚ nucleotides b.
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Cells do everything from providing structure and stability to providing energy and a means of reproduction for an organism. There are many professions that have jobs like the organelles in a cell. One example is a Prison. A prison is a clear representation of a cell because all the organelles have a function that is tantamount to a prison. Also it is logical because each function have a function that relates to the jobs found in a prison. The Nucleus in a cell controls everything in the cell
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Animal and plant cells Part Function Nucleus Contains genetic material‚ which controls the activities of the cell Cytoplasm Most chemical processes take place here‚ controlled by enzymes Cell membrane Controls the movement of substances into and out of the cell Mitochondria Most energy is released by respiration here Ribosomes Protein synthesis happens here Extra parts of plant cells Part Function Cell wall Strengthens the cell Chloroplasts Contain chlorophyll‚ which absorbs light energy
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allow cell phones to be sold without pre-market testing. The rationale‚ known as the “low power exclusion‚” distinguished cell phones from dangerous microwave ovens based on the amount of power used to push the microwaves. At that time‚ the only health effect seen from microwaves involved high power strong enough to heat human tissue. The pressure worked‚ and cell phones were exempted from any type of regulatory oversight‚ an exemption that continues today. An eager public grabbed up the cell phones
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The Cell: Transport Mechanisms and Cell Permeability 1. Molecular motion: A and D 2. Velocity of molecular movement: B and C 4. Size of pores. Solubility in the lipid portion of the membrane and/or presence of membrane “carriers” for the substance(s). 5. Glucose- (a) move into the sac Albumin- (c) no movement Water- (b) move out of the cell NaCl- (a) move into the celll 7. Hypertonic- C- crenated Isotonic- B Hypotonic- A- hemolysis‚ bursting open due to swelling
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Science 9-Biology Observing Cell Division Lab Purpose: To use the microscope to observe and sketch plant cells and animal cells in various stages of the cell cycle. Equipment and Materials: Compound Microscope Laptops Prepared Slide of Onion (Allium) Root Tips Prepared Slide of Whitefish Mitosis BC Science 9 Text pg. 162-163 Part 1-Plant Cells Procedure: 1. Take a prepared slide of an onion tip root and observe it under low power
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Cell Cycle Definition- The process of the cell to divide into new cells. Interphase Description- the phase that occurs before cell division‚ the preparation for cell divisions Stages: G1- Rapid growth of the cell‚ metabolic activity. S- Synthesis‚ DNA replication. G2- Getting ready for cell division. Centrioles replicate Mitosis and Cell Division Function- To grow repair and maintain the cells in the body along with the reproduction of those cells. Results- Two identical daughter
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Stem Cells and Tissue Renewal 1 The Multicellular “Habitat” • Cells of multicellular organisms – highly specialized – over 200 types in human body • Arranged into tissues‚ organs‚ organ systems • Unable to survive outside body “habitat” skin wont survive in heart tissues. They all start up identicals 2 Specialized Cell Types • Cells of early embryo identical • Differentiation results in specialized cell types – some differentiated cells continue to divide – many others are
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