cytosol and there is no internal membrane that delimits a nucleus. 6. Are there any bacteria made of more than one cell? There are no pluricellular bacteria. All bacteria are unicellular prokaryotic. 7. What is the plasma membrane of the cell? What are its main functions? The plasma membrane is the outer membrane of the cell‚ it delimits the cell itself and
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the cells. The extracellular fluid is comprised of the plasma and the interstitial fluid. Homeostatic reflex arcs are stimulus response sequences that involve negative feedback and are designed to respond to a change in a variable by bringing the variable back toward normal. Examples of variable regulated by homeostatic reflex arcs are: Body Temperature Blood pressure Arterial PO2 and PCO2 Arterial pH Plasma Glucose Plasma Na+‚ K+‚ Ca2+ And many more. See Figure 1-6 (10th)‚
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THE EFFECTS OF FOOD DEPRIVATION ON CONCENTRATION AND PERSEVERANCE OF STUDENTS Karlo F. Vertucio Pateros Catholic School EFFECTS OF FOOD DEPRIVATION 2 ABSTRACT This paper examined the effects of short-term food
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molecules have difficulty crossing the plasma membrane? Explain why. Large polar molecules and ions cannot cross plasma membranes easily‚ because the inner hydrophobic section of the membrane impedes the movement of these molecules. 2. What does the term concentration gradient mean? Concentration that exists between two different areas 3. A solution of 1M glucose is separated by a selectively permeable
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filters along with the plasma or blood fluid. There are four main parts of the nephron tubule: the proximal convoluted tubule‚ the U-shaped loop of Henle‚ the distal convoluted tubule‚ and the collecting duct. A substantial amount of resorption takes place in the proximal convoluted tubule. The small proteins‚ glucose‚ and ions are returned to the blood by active transport. If the glucose in the filtrate‚ or filtered fluid‚ exceeds the kidney threshold level‚ some glucose will remain and appear
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whilst glycoproteins are important in immune cell recognition. (1) What kind of molecules can and cannot pass easily across a lipid bilayer? Figure 1 clearly shows the different molecules that can and cannot transport easily across the plasma membrane. All lipid soluble membranes (hydrophobic molecules and small uncharged molecules) can pass easily through the membrane in both directions. The movement of these molecules is dependent only on their concentrations inside and outside the cell
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bounded by Plasma Membrane: regulates the traffic of molecules between the cell and its surroundings. 2) DNA 3) Ribosomes: tiny structures that build proteins according to instruction from the DNA Overview of Eukaryotic Cells Plant cells have: 1) Central vacuole 2) Cell Wall 3) Chloroplast Animal cells have: 1) Centriole 2) Lysosome 3) Flagellum Membrane Structure The plasma membrane is the boundary that separates the living from its non-living environment The plasma membrane
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minutes and drink 1 L of fluid every 10 minutes in order to maintain Homeostasis!!! The one million nephrons in each human kidney are amazingly efficient at selectively removing wastes from the blood while at the same time conserving water‚ salt ions‚ glucose and other needed materials. The nephrons accomplish this task in 3 main steps; these 3 steps are also called the 3 main roles of the nephron: Filtration‚ Reabsorption and Secretion. Fiftratffln Filtration is aecomplished by the movement of fluids
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Pre-admission laboratory work on a patient scheduled for surgery shows a fasting blood glucose of 200mg/dl. Results of the routine urinalysis are: Color pale yellow Protein 1+ Blood negative Appearance Clear Glucose Trace Urobilinogen normal Sp. Gravity 1.030 Ketones trace Nitrite negative pH 5.0 Bilirubin negative Leukocyte negative 1. Explain the correlation between the patient’s blood and urine results. The renal threshold for glucose is exceeded. 2. What is the most probable metabolic disorder
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born at 39 weeks) - 1 (twins born at 35 weeks) - 1 (spontaneous abortion at 9 weeks) - 3 (each twin and the singleton‚ all living). D) 4-2-1-0-2.INCORRECTThis does not reflect the client’s obstetrical history.The nurse notes that Amanda’s fasting 1 hour glucose screening level‚ which was done 2 days previously‚ is 158 mg/dl.2.The nurse recognizes that what information in the client’s history supports a diagnosis of gestational diabetes? A) Maternal great-aunt has insulin dependent (Type 1) diabetes
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