Can you guys please leave typed answer, i dont understand hand writing. review H
ID: 217565 • Letter: C
Question
Can you guys please leave typed answer, i dont understand hand writing.
review Homeostasis and Osmoregulation. Then research osmoregulation in Salmon, which spend part of their lives in salt water and part in fresh water. To complete this assignment prepare a document that includes the following
(1) a definition of homeostasis and osmoregulation
(2) an explanation of how a stimulus, receptor and effector work together to maintain homeostasis.
(3) a brief explanation of osmoregulation in salmon in both fresh water and salt water
Explanation / Answer
Ans 1. Homeostasis is self-regulating process, in which biological systems tends to maintain the stability by optimizing conditions for survival. Osmoregulation is method which maintains constant osmotic pressure in the fluids
Ans 2. Homeostasis means stability or balance in a system which is attempted by body in a constant internal environment. To maintain stable internal environment it requires constant monitoring and adjustments according to the conditions, the adjustment within body is called homeostatic regulation.
Homeostatic regulation works on three mechanisms
1) The receptor, 2) the control center and 3) the effector.
The receptor receives the information about the change in the environment. The control center processes information from the receptor and effector responds to the commands of the control center by working according to the stimulus.
It is an ongoing process which continually works to restore and to maintain homeostasis.
Ans 3. Osmoregulation it is a type of homeostasis, in this process osmosis is controlled by salmon to maintain balance in water. Salmon fish can live in a habitat surrounded by water as their body contains high percentage of water. Salmon can adapt or can live in both fresh and sea water. Likely all vertebrates, salmon is an excellent osmoregulator, can maintain the NaCl flux equilibrium from the surrounding. In salmon gill epithelial cells, special enzyme is present which can hydrolyze ATP and use the released energy to actively transport Na+ and Cl- against their concentration gradients. In sea water, Na+-Cl- ATPase molecules 'pump' Na+ and Cl-out of the salmon blood into the water flowing over the gills, which causes the continuous influx of NaCl. In fresh water, the Na+-Cl- ATPase molecules 'pumps' Na+ and Cl-out of the water flowing over the gills and into the salmon's blood, offset in the continuous diffusion-driven loss of NaCl by which salmon is survived in fresh water habitats with the low NaCl concentrations.
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