Which of the following processes is part of urine formation?

Glomerular filtration is a crucial step in the formation of urine within the kidneys. This process takes place in the renal corpuscle, which includes the glomerulus and Bowman's capsule. During glomerular filtration, blood enters the glomerulus through the afferent arteriole, where blood pressure forces water, ions, small molecules, and waste products from the blood into the Bowman's capsule, forming what is known as the filtrate. This filtrate then undergoes further processing as it flows through the renal tubules, where substances are reabsorbed or secreted to form the final urine composition.

In contrast, glycolysis, photosynthesis, and cellular respiration are metabolic processes unrelated to urine formation. Glycolysis is involved in breaking down glucose for energy in cells, while photosynthesis occurs in plants to convert light energy into chemical energy. Cellular respiration is the process by which cells utilize glucose and oxygen to produce energy, carbon dioxide, and water. These processes serve different functions in metabolism and energy production and do not contribute directly to the process of urine formation.