Does glomerular filtration occurs as blood moves through a tight ball of capillaries called the tubule?

No, glomerular filtration does not occur in the tubule; it occurs in the glomerulus, which is a network of capillaries located at the beginning of the nephron in the kidney. As blood flows through the glomerulus, pressure forces water and small solutes through the capillary walls into the Bowman’s capsule, forming the filtrate. The tubule, which follows the glomerulus, is where further processing of the filtrate occurs, including reabsorption and secretion.