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Which of the following processes take place at the glomerulus of a nephron?Secretion of ureaReabsorption of waterReabsorption of glucoseFiltration of blood

Question

Which of the following processes take place at the glomerulus of a nephron?Secretion of ureaReabsorption of waterReabsorption of glucoseFiltration of blood

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Solution

The process that takes place at the glomerulus of a nephron is the filtration of blood.

Here's a step-by-step explanation:

  1. Blood enters the kidney through the renal artery, which splits into many afferent arterioles.

  2. Each afferent arteriole leads to a structure called the glomerulus, a tiny, intertwined group of capillaries.

  3. The glomerulus is encased in a cup-like sac called a Bowman's capsule.

  4. The walls of the glomerulus and the Bowman's capsule act as a filtration barrier. They allow small molecules, waste products, and fluid to pass into the Bowman's capsule, but prevent large molecules and cells from passing through.

  5. This process is known as glomerular filtration and it's the first step in the formation of urine.

The other processes mentioned - secretion of urea, reabsorption of water, and reabsorption of glucose - occur later in the nephron, not in the glomerulus.

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