In the aquatic world, osmoregulation is very important. Please describe what would happen at the cellular level as well as organismal level to a freshwater fish that is placed in salt water.
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In the aquatic world, osmoregulation is very important. Please describe what would happen at the cellular level as well as organismal level to a freshwater fish that is placed in salt water.
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- 10) Osmoregulation refers to the ability of an organism to maintain homeostasis with respect to the solute concentration of their bodies. Euryhaline fish are able to live in both fresh water and salt water at different points of their life. In order to osmoregulate in both environments, one physiological change that occurs in these fish is the direction in which they actively transport ions across their gills. a) In what direction are ions actively transported across the gills of euryhaline fish when they are in freshwater versus salt water? In freshwater: (into body or out of body) In salt water: (into body or out of body) b) Briefly explain why active transport is required in these cases. 121 11) The table below compares and contrasts carrier protein pumps with clathrin-dependent receptor-mediated endocytosis. Fill in the empty spaces of the table with the appropriate ans Clathrin- Carrier protein dependent receptor mediated endocytosis pump Involvement of multiple types of proteins?…a) The process by which salmon maintain an internal balance is called osmoregulation. Describe how salmon achieve osmoregulation as they migrate between fresh and saltwater environments. b) Describe what happens to salmon in fresh water. What direction do solutes tend to move via diffusion? What direction does water tend to move via osmosis?Describe the underlying osmoregulation issues that aquatic and terrestrial animals confront, as well as their solutions for overcoming them. Emphasize how their osmoregulatory organs have modified.
- Explain and contrast osmoregulation in freshwater and saltwater fish.The diagram below of part of a nephron shows some of the pressure gradients that are involved in the movement of fluids from blood to the glomerular filtrate within the Bowman's capsule. The numbers represent hydrostatic pressure in kPA. Afferent arteriole (9.32) Glomerulus Efferent arteriole (2.34) -Bowman's caps Colloid osmotic pressure of the plasma in the glomerular capillaries (4.26) Net fitration Distal convoluted Proximal convoluted tubule tubule (1.33)A marine invertebrate such as the anemone is described as an 1.) Osmoregulator 2.) Osmomanipulator 3.) Osmoconformer 4.) Osmosupressor 5.) Osmodictator
- Which mechanism of osmoregulation is shared by sharks and hagfish? the osmolarity of their plasma is about the same as that of sea water both are osmoregulators both excrete all of their nitrogenous wastes as uric acid both drink large amounts of fresh water to avoid desiccation (drying out)Regarding osmoregulation, what physiological and behavioral changes would occur as a fish migrates from a freshwater stream to the ocean?3. 10iammals, With some exceptions, are the only vertebrates with medullary nephron. All other vertebrates only have a cortical nephron. What does this mean for the osmolarity of the renal filtrate for these vertebrates and what problems might this present? How do think they solve this problem? Search entries or author Unread Edit View Insert Format Tools Table
- Sharks live in marine (saltwater) habitats and are osmoconformers. Based on this information which of the following is/are true (select all that apply): A. Sharks have tissues/body fluids that are isoosmotic relative to the environment B. Sharks have tissues/body fluids that are hypoosmotic relative to the environment C. Sharks devote considerable energy to osmoregulation D. Sharks do not devote much energy to osmoregulationThe bodily fluids of freshwater fish contain higher concentration of dissolved solids in their surroundings, so they tend to bloat (take in water) or lose electrolytes. How can freshwater fish avoid this? 1.) By drinking lots of water? 2.) By actively transporting ions out from the gills into the water? 3.) by excreting highly concentrated urine? 4.) by resorbing ions in nephronsReabsorption depends on _________. a. osmosis across the nephron wall b. active transport of sodium across the nephron wall c. a steep solute concentration gradient d. all of the above