Biology excretion

Excretion

The biological process of separating and removing wastes or non-useful products from the body.

Metabolism

The sum of all biochemical processes in a living organism, divided into anabolism (building up) and catabolism (breaking down).

Urea

A nitrogenous waste product formed in the liver from the metabolism of proteins.

Nephron

The functional unit of the kidney, consisting of a renal tubule and a glomerulus.

Glomerular Filtration

The process by which blood is filtered in the kidneys, producing filtrate that contains waste products and excess substances.

Vasopressin

A hormone that regulates water reabsorption in the kidneys, affecting urine concentration.

Kidney Transplantation

The surgical procedure of implanting a healthy kidney from a donor into a patient with kidney failure.

Dialysis

A medical procedure that artificially removes waste products from the blood when kidneys fail.

Homeostasis

The regulation of stable internal conditions within an organism, such as ionic balance or pH.

Micturition

The process of urination, controlled by reflex actions and sphincter muscles.

Raphides

Solid bodies formed in plant waste storage, typically found in fruits.

Alkaloids

Nitrogenous organic compounds produced by plants that can be toxic and serve various functions.

Tannins

Carbon compounds in plants that can be used in tanning of leather and have medicinal properties.

Tubular Reabsorption

The reabsorption of essential substances from the filtrate back into the bloodstream in the nephron.

Tubular Secretion

The process in which additional waste and ions are secreted into the nephron from the peritubular capillary.