Respuesta :
This is true. Waste is transported from the kidneys in the form of urine.
The cellular metabolism generates many by-products which are rich in nitrogen and must be cleared from the bloodstream, as they can be harmful for the human body such as urea, uric acid, and creatinine.
These by-products are expelled from the body during urination, which is the primary method for excreting water-soluble chemicals from the body or all the waste out of the body.
Waste products are removed in the form of urine by the kidney.
Further Explanation:
The kidneys are the major excretory organs of the body. It is a bean-shaped and fist-sized organ that lies in the lower back of the body. It is located behind the peritoneum on the posterior side of the abdominal wall. The system contains two kidneys, extended from last thoracic to a third lumbar vertebra or near the vertebral column. The right kidney is slightly lower than the left, but they are of the same size. It measures about 3cm thick, 11cm long and 5cm wide. Urine is a waste byproduct that contains excess water and waste material formed during metabolic activity. The process involves three steps; filtration, secretion, and reabsorption:
• Filtration: The afferent arteriole supplies the blood into the glomerulus. The blood will then move inside the glomerulus. The glomerulus capillaries filter the blood based on their particle size. It will extract the non-filterable substances such as albumin and cell from blood and transfer the nitrogenous waste and water into the Bowman’s capsule.
• Reabsorption: In this step, the ions and molecules are reabsorbed by the capillaries surrounding the tubules. The glomerular filtrate passes through the tubule part of the nephron.
• Secretion: This step involves the movement of some substances (metabolic byproduct) with toxic properties and drugs that are not normally formed within the body.
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Answer Details:
Grade: High School
Subject: Health
Chapter: Urinary system
Keywords:
Waste product, toxic, metabolic, ions, molecule, capillaries, glomerular filtrate, blood, filtration, secretion, reabsorption.
