The correct answer is: B. Bowmen’s capsule.
The Bowman’s capsule is a cup-like structure that surrounds the glomerulus, a tuft of capillaries. The glomerulus is where filtration of blood occurs. The filtration membrane, which is made up of the glomerular endothelium, the basement membrane, and the podocytes, allows water and small molecules to pass from the blood into the Bowman’s capsule. The filtrate then passes into the proximal convoluted tubule, where it is further processed.
The lung is an organ that is responsible for gas exchange. The alveoli, which are tiny air sacs in the lungs, allow oxygen to pass from the air into the blood and carbon dioxide to pass from the blood into the air.
The ureter is a tube that carries urine from the kidney to the bladder.
The urinary tubule is a long, coiled tube that is part of the nephron, the functional unit of the kidney. The urinary tubule is responsible for reabsorbing water and nutrients from the filtrate and secreting waste products into the filtrate.