Question

which process in urine formation is least selective?

Answer 1

Reabsorption, active transport, secretion, salt pumping by the loop of Henle and filtration are all selective process in the nephron.

Amongst the given options filtration is the least selective process in the nephron. Reabsorption, active transport, secretion and salt pumping by the loop of Henle are highly selective. Hence, the correct option is (a) filtration.

Answer 2

Urine formation

Explanation:

• Urine Formation:
• Regardless of whether you consider it the washroom, the bathroom, or the loo, there are two things that all individuals do there. This exercise is about the first.  
• urine is one of the body's waste items. It is basically made out of water and urea. Urea is an exceptional nitrogenous waste intensify that the body should routinely expel. urine  arrangement happens in the kidney in three phases: filtration, reabsorption, and discharge.  
• Stage 1: filtration: The kidney is the body's blood sifting framework. Veins visit the kidney and enter an exceptional bundle of vessels called the glomerulus. The glomerulus is settled inside an area of the kidney called the Bowman's Capsule. This is the place filtration happens. As blood is pushed through the little vessels, the high-pressure compels a few things to go through the slender dividers. The dividers go about as a strainer or a channel. Consequently, it is called filtration.  
• Stage 2: reabsorption: This district of the kidney is extraordinary on the grounds that numerous things can be expelled from the filtrate. These important things are recalled, or reabsorbed, by the body.  Glucose, certain salts, nutrients, hormones, and amino acids are reestablished to the body and won't be remembered for urine. Here and there, on the off chance that the body has a lot of something, at that point the additional sugar or salt will remain in the filtrate. For instance, diabetics with significant levels of blood glucose may have glucose in their urine since it can't all be reabsorbed. The filtrate after reabsorption resembles pre-urine