Correct! The ultrafiltrate that enters Bowman’s capsule in the glomerulus has the same specific gravity as protein-free plasma (about 1.010). Normally, solutes and water are selectively absorbed and secreted while passing through the nephron. If the tubules are unable to perform this function, the specific gravity of the urine excreted will be identical to that of the original ultrafiltrate. This condition, known as isosthenuria, implies severe renal tubular dysfunction.