Press "Enter" to skip to content

Is tubular secretion active or passive?

Tubular secretion is the transfer of materials from peritubular capillaries to the renal tubular lumen; it is the opposite process of reabsorption. This secretion is caused mainly by active transport and passive diffusion. Usually only a few substances are secreted, and are typically waste products.

What would be the likely outcome of tubular reabsorption in the nephron did not occur?

Tubular _________ is defined by movement of certain substances from the ________ capillaries to the renal tubules. What would be the likely outcome if tubular reabsorption in the nephron did not occur? Excessive loss of fluids and, eventually, death. name the renal process that occurs at the renal corpuscle.

Where does tubular reabsorption occur?

Reabsorption. Reabsorption takes place mainly in the proximal convoluted tubule of the nephron . Nearly all of the water, glucose, potassium, and amino acids lost during glomerular filtration reenter the blood from the renal tubules.

What will happen if there is no tubular reabsorption in the nephron of kidney?

If there will be no tubular reabsorption in nephrons the useful things would get off from the body with urine (urea and water formed urine). Selective reabsorption allows useful materials to get into capillaries again and the body will use them for further processes.

What is the purpose of urine formation?

The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion. These processes ensure that only waste and excess water are removed from the body.

What is the importance of selective reabsorption?

Selective reabsorption is the process whereby certain molecules (e.g. ions, glucose and amino acids), after being filtered out of the capillaries along with nitrogenous waste products (i.e. urea) and water in the glomerulus, are reabsorbed from the filtrate as they pass through the nephron.

Why is selective reabsorption important in urine formation?

Selective reabsorption occurs because during ultrafiltration, important components of the blood are filtered out and they need to be reabsorbed into the body. This occurs by them diffusing from the filtrate into the cells lining the proximal convoluted tubule.

Which substance is selectively reabsorbed by the tubular part of nephron?

Two substances which are selectively reabsorbed are amino acids and glucose. During this process the essential substances are taken back by the blood plasma from the tubule of the nephron.

What are the two important function of kidney?

The kidneys perform many crucial functions, including: maintaining overall fluid balance. regulating and filtering minerals from blood. filtering waste materials from food, medications, and toxic substances.

Is responsible for the recovery of water and sodium chloride from the urine?

Loop of Henle, long U-shaped portion of the tubule that conducts urine within each nephron of the kidney of reptiles, birds, and mammals. The principal function of the loop of Henle is in the recovery of water and sodium chloride from urine.

What are the structural and functional unit of kidney called?


What is the structural and functional unit of living organisms?

The cell is the basic structural and functional unit of life. Cells are independent, single-celled organisms that take in nutrients, excrete wastes, detect and respond to their environment, move, breathe, grow, and reproduce.

What are the structural and functional unit of brain?

The basic functional unit of the brain is the neuron. Although there are upwards of 1,000 different types of neurons, they all have the same basic structure and function. Each neuron has a soma, or cell body, that performs all the basic metabolic functions required to keep the cell alive and functioning.