Concept:Glucose is completely reabsorbed in the proximal convoluted tubule, so it is not carried further along the nephron.
Explanation:The labelled part II is the proximal convoluted tubule of the nephron.
During filtration, the fluid entering this part contains useful substances such as glucose.
Glucose is actively absorbed back into the surrounding blood capillaries at this specific region.
This reabsorption leaves no glucose in the remaining sections of the tubule.
Therefore, glucose is the only substance from the options that is present in part II only.
Urea and uric acid remain in the tubule and continue into the later parts.
Lipids are not normally filtered into the urinary tubule.
So, among the given choices, glucose best fits the description.
Answer:B. Glucose
