AP BIOLOGY

Detailed explanation-1: -As a result, the filtrate leaving the Bowman’s capsule is very similar to blood plasma (filtrate or glomerular filtrate is composed of blood plasma minus plasma protein i.e. it contains all the components of blood plasma except the proteins) in composition as it passes into the proximal convoluted tubule.

Detailed explanation-2: -Blood is filtered so finely through the membranes of Bowman’s capsule, that almost all the constituents of the plasma except the proteins pass onto the lumen of the Bowman’s capsule. Therefore, initially the glucose in glomerular filtrate is present in same concentration as in blood plasma.

Detailed explanation-3: -So, the correct answer is option D.

Detailed explanation-4: -Bowman’s capsule surrounds the glomerular capillary loops and participates in the filtration of blood from the glomerular capillaries. Bowman’s capsule also has a structural function and creates a urinary space through which filtrate can enter the nephron and pass to the proximal convoluted tubule.

Detailed explanation-5: -Glomerular filtrate contains water, glucose, salts and urea. Large molecules such as proteins and cells are not able to pass through the blood capillary walls. So, glomerular filtrate are devoid of cells and proteins.