Question

Glucose is taken back from glomerular filtrate through
A. Active transport
B. Passive transport
C. Osmosis
D. Diffusion

Answer 1

Hint: The glomerulus (plural glomeruli) is a network of small blood vessels (capillaries) known as a tuft. It is located at the beginning of a nephron in the kidney. The main function of the glomerulus is to filter plasma to produce glomerular filtrate, which passes down the length of the nephron tubule to form urine.

Complete Answer:
If a substance passes through the glomerular capillary endothelial cells, glomerular basement membrane and podocytes, then it enters the lumen of the tubule and is known as glomerular filtrate. Tubular reabsorption is the next function of the kidney. It occurs in the PCT part of the renal tubule. Almost all nutrients are reabsorbed either by passive or active transport. All of the glucose which was filtered out through glomerulus is reabsorbed in the blood capillary. The reabsorption of glucose and mineral ions from the nephron occurs by active transport. The cells which make up the wall of the nephron have a folded membrane (providing a large surface area) and a large number of mitochondria (to supply the energy for active transport).

Note:
The nephron is the microscopic structural and functional unit of the kidney. It is composed of a renal corpuscle and a renal tubule. The renal corpuscle consists of glomerulus and an encompassing Bowman's capsule. The renal tubule extends from the capsule.