Question

Filtration of blood takes place at
A. PCT
B. DCT
C. Collecting ducts
D. Malphigian body

Answer 1

Hint: Filtration takes place in the glomerulus, which is the vascular beginning of the nephron. approximately 1/4 of the blood flow from the cardiac output circulates through the kidney comma the greatest rate of blood flow for any organ.

Complete Answer:
- Each nephron has two parts: glomerulus and renal tubule. Glomerulus is a tuft of capillaries formed by afferent arterioles.
- The renal tubule begins with the double wall cup-like structure called bowman’s capsule, which encloses glomerulus.
- Glomerulus along with bowman’s capsule is known as malpighian body or renal corpuscle. It continues further to form PCT, loop of hell and DCT, the first step in urine formation is the filtration of blood which is carried out by the malpighian body.
- The process by which glomerular filtration occurs is known as renal ultrafiltration. The force of hydrostatic pressure present in the glomerulus (that is the force of pressure exerted from the pressure of the blood vessels itself) is the driving force that pushes filtrate out of the capillaries into the slits in the nephron. Hence, the filtration of blood is carried out by malpighian body.

So the correct answer is option ‘D’.

Note: Proximal convoluted tubule (PCT) regulates the pH of the filterates by trading hydrogen particles in the interstitium for bicarbonate particles in the filtrate. Proximal tangled tubules manage the pH of the filtrate in the kidneys. Elements of DCT. It keeps up a legitimate fixation and pH of the urine. Despite the fact that the DCT is the most brief portion of the nephron, traversing just around 5 mm long in people (1), it assumes a basic part in an assortment of homeostatic cycles, including sodium chloride reabsorption, potassium emission, and calcium and magnesium taking care of.