Question

Which is the main Excretory product in Humans?

Answer 1

Hint Excretion is the process by which an organism's metabolic waste is removed. The lungs, kidneys, and skin in vertebrates are principally responsible for this. In all kinds of life, excretion is a necessary activity. Urine is discharged through the urethra, which is part of the excretory system in mammals.

Complete answer:
Waste products are expelled straight through the cell surface in unicellular organisms.
Several chemical reactions occur in the body during daily activities such as cellular respiration. Metabolism is the term for these processes. Carbon dioxide, water, salts, urea, and uric acid are all waste products of these chemical processes.
The accumulation of these wastes inside the body beyond a certain point is damaging to health. These wastes are removed by the excretory organs. Excretion is the process of the body's metabolic waste being removed.
The excretory system in humans consists of two kidneys, one ureter, a urine bladder, and a urethra. Excretion is the process of an organism's metabolic waste products being removed from its body. Urea is the most common excretory product generated in humans throughout the excretion process.
Hence Urea is the most common excretory product in humans.
Types of excretion:
Ammonotelism
Ammonotelism is the process of removing ammonia from the body, and ammonotelic species are those that demonstrate this trait. Ammonia is excreted directly into the environment by aquatic creatures, where it is quickly diluted. It's also extremely harmful to the body's tissues.
Ureotelism
Urea is secreted as a metabolic waste product in several animals and amphibians. These creatures are known as ureotelic. The ammonia produced by these organisms is transformed to urea in the liver of animals and then released back into the bloodstream. The urea is filtered by the kidneys and then excreted from the body.
Uricotelism
Uricotelic animals excrete nitrogenous waste in the form of uric acid pellets or paste. This procedure is metabolically expensive; nevertheless, water loss is negligible, and it is the least hazardous. Furthermore, because uric acid is insoluble in water, the excretions produce pasty white suspensions. Uricoptera are a group of reptiles, birds, and insects that are classed as uricotelics.

Note: As respiratory products, green plants create carbon dioxide and water. The carbon dioxide generated during respiration is used during photosynthesis in green plants. Photosynthesis produces oxygen as a byproduct, which exits through stomata, root cell walls, and other pathways. Excess water can be removed from plants by transpiration and guttation.