Answer in brief. (Any one)
1) Explain sickle cell anamia : symptoms and treatment
2) Describe the process of urine formation in human being.
Answers
Answer:
In sickle cell anaemia RBC become sickle shaped due to which oxygen carrying capacity decreases.
In human being urine formation takes place in kidneys via ultrafiltration and reabsorption in nephrons. Excretory products in form of urea is excreted
Answer:
2.) Hii........
When the blood rich in urea and other waste product reaches the kidney, it gets filtrated through a process called ultrafiltration, in which some of the light materials such as glucose,amino acids,urea goes into the renal tubule whereas blood plasma and corpuscles is left which leaves the malphigan body through a efferent arteriole and further gets branched into secondary capillaries which covers the renal tubule. After that, the process of tubular reabsorption occurs in which water is absorbed from tenal tubule. And further the process called tubular secretions occurs in which sodium ions, potassium ions, etc. are given out thus the liquid left in renal tubule is final urine which gets collected into collecting tubules and then all tubules of the nephrons of the kidney combine to forms the common ducts which gives out the urine into renal pelvis from where urine goes to bladder through the ureter and finally leads to outside through urethera. In male urethera opens in penis and in females urine comes directly outside.
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