occurs‚ the body counteracts it to restore the norm. [ Refer to figure 1 in annex below ] Osmoregulation is the process where the body regulates a constant blood water potential by controlling its water and solute concentrations. [ Refer to figure 2.1 and 2.2 in annex below ] Daily life application: Homeostasis is crucial to an organism as it allows cells to function correctly. For example‚ in osmoregulation‚ if the water potential of blood plasma increases‚ more water would enter the blood cells
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become flaccid (floppy). If it keeps loosing water‚ water leaves the vacuole and membrane pulls away from wall. Becomes plasmolysed. Excytosis adds to the cell membrane while endocytosis removes part of the cell membrane. Paramecium Osmoregulation. This is the control of water inside a cell or organism. It is very important if you are a unicellular organism living in fresh water. Water is continually moving into the organism by osmosis (passive transport) and unless the excess water
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Title: Homeostasis Date: 19th January 2010 Aim: To observe‚ draw and label the parts of a nephron. Apparatus: Slide of the transverse section of a kidney Pencil Paper Microscope Method: The slide of the transverse section of a kidney was mounted on the microscope and observed under high power. Drawings of the parts of the nephron were made. Calculations of Magnification: Loop of Henle One Ocular Division = 0.22 µm Size of Specimen = 2 ocular divisions Conversion of Ocular
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HOMEOSTASIS BIOLOGY I BIO091 Prepared by: Nur Syakireen Bt. Ishak SCOPE •Definition and importance of homeostasis •Homeostatic organ •Negative and positive feedback mechanisms •Blood-glucose regulation •Thermoregulation •Osmoregulation DEFINITON & IMPORTANCE OF HOMEOSTASIS Homeostasis • Homeostasis: • is the steady state of physiological condition of the body. • it is the physiological processes by which organisms maintain a constant & balanced internal environment. • In achieving
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Human homeostasis From Wikipedia‚ the free encyclopedia Human homeostasis is derived from the Greek‚ homeo or "constant"[dubious – discuss]‚ and stasis or "stable" and means remaining stable or remaining the same.[1] Homeostasis — also spelled homoeostasis or homœostasis (from Greek: ὅμοιος‚ "hómoios"‚ "similar"‚[1] and στάσις‚ stásis‚ "standing still"[2]) — is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples
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fresh water and can travel far upstream in rivers. I. Introduction A. Definition of Carcharhinus leucas‚ its class‚ subclass and physiology B. Eytmology. II. Common Names III. Habitat IV. Eating habits V. Adaptability; osmoregulation VI. Shark Attacks-Some attacks of bull sharks are blamed on the great white A. Some statistical information B. The 1916 New Jersey shark attacks VII. Conclusion A. Staying safe in the waters B. Further reading Bull
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Here is cbse 2007 question paper of science: CBSE X SCIENCE AND TECHNOLOGY (Theory) 2007 (OUTSIDE DELHI) Time allowed: 2 hours 15 mins; Maximum Marks: 100 General Instructions: | 1) | The question paper comprises of two sections A and B. You are to attempt both sections. | 2) | You are advised to attempt all the questions of Section A and Section B separately. | 3) | All questions are compulsory. | 4) | There is no overall choice. However‚ internal choice has been provided in some questions
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Kyle Cosentino Managing Coastal Ecosystems 8/31/10 The Freshwater Shark: Bull Sharks and Their Movement between Fresh and Saline Environments Carcharhinus Leucas or bull sharks are the only species of sharks that are able to travel long distances and spend extended periods of time in freshwater environments. Although many people disagree‚ I believe that one of the bull sharks’ main reason for entering freshwater is to find breeding grounds. There is evidence that supports this theory‚ and it
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process of how organisms develop special structures and internal processes to enable them to live in their environment. Organisms can be adapted in two ways: 1. Body structure (e.g. Small ears to reduce heat loss) 2. Body processes (e.g. Osmoregulation in salmon) There are several factors which cause adaptation to occur: Physical Factors * * * Other organisms * * * Adaptations Match the following animals to the adaptations below‚ and suggest
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PLASMA MEMBRANE SELECTIVE PERMEABILITY= allowing some substance to cross it more easily than others composed of: Phospholipids Proteins Carbohydrates Cholesterol FLUID MOSAIC MODEL Phospholipids are primary lipids(constantly moving‚ fluidly) AMPHIPATHIC-containing hydrophobic and hydrophilic regions Mosaic part=not made of one thing Freeze-fracture studies:way to view what’s inside FLUIDITY OF MEMBRANE Move within bilayer Most of lipids and some proteins‚ drift laterally
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