what substances are selectively reabsorbed?
150776
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.
107582
Urea is freely filtered, 50% are reabsorbed in the proximal tubule with the reabsorption of water (solvent drag). Urea is secreted in the thin ascending limb of Henle loop, so significant amounts of urea reach the distal nephron. In the collecting ducts, urea is reabsorbed together with water.
1427547
Reabsorption of water is hormonally controlled. Most of the water passing through the kidney is eliminated as urine. Normal filtrate contains a large amount of protein. The excretion of sodium ions is one of the mechanisms that maintains the pH balance of the blood.
1268414
Substances reabsorbed in the PCT include urea, water, potassium, sodium, chloride, glucose, amino acids, lactate, phosphate, and bicarbonate.
8674
Filtration involves the transfer of soluble components, such as water and waste, from the blood into the glomerulus. Reabsorption involves the absorption of molecules, ions, and water that are necessary for the body to maintain homeostasis from the glomerular filtrate back into the blood.
825123
The human stomach is capable of absorbing most acidic drugs and the very weakly basic drugs. Salicylic acid, aspirin, thiopental, secobarbital and antipyrine, which are undissociated in the acidic gastric contents, were readily absorbed.
508217
['Benzoates (such as sodium benzoate)', 'Nitrites (such as sodium nitrite)', 'Sulphites (such as sulphur dioxide)']
967081
['Alcohol acts as a solvent to help solubilize the ingredients.', 'Alcohol also acts as a vehicle for delivering the active ingredients.']
450263
Sodium/proton exchanger, which enables reabsorption of bicarbonate. Glucose, amino acids and other substances diffuse out of the epithelial cell down their concentration gradients on passive transporters and are then reabsorbed by the blood capillaries.
23084
Most of the Ca++, Na+, glucose, and amino acids must be reabsorbed by the nephron to maintain homeostatic plasma concentrations. Other substances, such as urea, K+, ammonia (NH3), creatinine, and some drugs are secreted into the filtrate as waste products.
786785
['Carboxymethylcellulose.', 'Denatured alcohol.', 'Hydrofluorocarbon.', 'Polyvinyl alcohol.', 'Propylene glycol.', 'Polyvinylpyrrolidone.']
353501
C. So a second process, called reabsorption, moves essential materials from the nephron back into the blood. Reabsorption occurs when transport proteins molecules in the walls of the nephron return essential substances such as glucose, amino acids, water, and salt to the capillaries that surround the nephron.
1262641
There are a several types of filters, including: bag, screen, and magnetic. The bag filter consists of a cloth bag which the hydraulic fluid is pushed through, the contaminants (being solid) are unable to flow through the bag as well.
1180448
So a second process, called reabsorption, moves essential materials from the nephron back into the blood. Reabsorption occurs when transport proteins molecules in the walls of the nephron return essential substances such as glucose, amino acids, water, and salt to the capillaries that surround the nephron.
747685
A large amount of reabsorption occurs in the PCT. Reabsorption is when water and solutes in the PCT are removed and moved back into the blood. ... The reabsorption in the proximal tubule is isosmotic. In the PCT 65% of water, 100% of glucose, 100% amino acids, 65% of potassium, 65% chloride and 67% of sodium is reabsorbed.
41565
Substances are reabsorbed from the tubule into the peritubular capillaries. ... However, glucose, amino acids, inorganic phosphate, and some other solutes are reabsorbed via secondary active transport through cotransport channels driven by the sodium gradient.
1440600
['Consumer products – some plastic bottles, metal food can linings, cosmetics, detergents, medicines, flame retardants, food, toys, and pesticides.', 'Air – from pesticide or industrial use.', 'Water – contaminated groundwater or drinking water.']