Potassiun ions.
Hydrogen ions.
Ammonium ions.
into
Reabsorption is the process by which molecules move from the proximal convoluted tubule into the blood.
True!
Tubular secretion
Tubular secretion is a part of urine formation occurring within the nephrons of the kidneys. After glomerular filtration, in which fluids from the blood pass into the glomerular capsule of the renal tubule, the filtrate is subject to tubular reabsorption and tubular secretion within the convoluted tubules and collecting ducts of the nephrons.
Tubular secretion
The active transport of penicillin from the blood into the nephron is an example of tubular secretion, a key process in the renal elimination of drugs and waste products. This process involves the movement of substances from the blood into the renal tubules for excretion in the urine.
Tubular secretion plays a minor role in regulating blood pH compared to other mechanisms such as respiration and kidney filtration. It primarily helps in the elimination of excess hydrogen ions and other solutes from the blood to maintain acid-base balance within the body.
"Tubular secretion is the reverse process of tubular reabsorption. Substances such as hydrogen and potassium ions and creatinine move either from the blood of the peritubular capillaries through the tubular cells or from the tubular cells into the filtrate to be disposed of in the urine. This process is important for the disposal of substances not ready in the filtrate and as a device for controlling blood pH" Page 615 in Human Anatomy & Physiology Laboratory Manual
Active transport of substances from the blood into the nephron is called tubular secretion. This process involves the movement of certain substances, such as drugs and ions, from the blood into the renal tubules for excretion in the urine. It helps in regulating the composition of body fluids and maintaining homeostasis.
The process you're referring to is tubular secretion, where substances like drugs, urea, and ions are actively transported from the blood into the renal tubules to be excreted in urine. This helps in regulating the body's electrolyte balance and removing waste products.
Excess hydrogen ions are removed from the blood through a process called tubular secretion in the kidneys. This mechanism helps regulate the body's pH balance by excreting excess hydrogen ions into the urine, ultimately maintaining the blood pH within a narrow range.