Table of Contents
What is the main excretory organs in humans?
The organs of excretion in humans include the skin, lungs and kidneys.
What are the main excretory products of animals?
In animals, the main excretory products are carbon dioxide, ammonia (in ammoniotelics), urea (in ureotelics), uric acid (in uricotelics), guanine (in Arachnida), and creatine.
What are the excretory organs in different animals?
Excretory Organs of animals
| Phylum | Excretory organ | |
|---|---|---|
| Annelida | Polychaetes | Protonephredia and metanephredia |
| Arthropoda | Crustaceans | Antennary (Green) glands |
| Arachnids (spiders, scorpions etc), Limulus | Coxal glands | |
| Insecta, chilopods, diplopods | Malpighian tubules |
What are the excretory organs in mammals?
Liver, lungs, and skin are accessory excretory organs in mammals.
- Role of the liver: Liver is the largest gland in vertebrates. It helps in the excretion of cholesterol, steroid hormones, vitamins, drugs, and other waste materials through bile. Urea is formed in the liver by the ornithine cycle.
- Role of the lungs:
How many excretory organs are there in the human body?
Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. All of them excrete wastes, and together they make up the excretory system . The skin plays a role in excretion through the production of sweat by sweat glands.
What are the organs that separate excretory materials?
As the blood circulates through the body, four different organs remove the wastes. The four organs of excretion are the liver, kidneys, lungs, and skin.
What is excretion in animals?
excretion, the process by which animals rid themselves of waste products and of the nitrogenous by-products of metabolism. Excretion is a general term referring to the separation and throwing off of waste materials or toxic substances from the cells and tissues of a plant or animal.
What is CBSE 10th excretion?
Excretion is a biological process by which an organism get rid of excess or toxic waste products of metabolism. Excretion removes unwanted by-products of metabolism,toxic chemical substances,regulate the ionic concentration of body fluids,regulates water content of body,regulate pH of body fluids.
What is the excretory organ of reptiles?
According to New World Encyclopedia, reptiles use two small kidneys as tools for excretion. The kidneys serve to filter the nitrogen from the animal’s bloodstream, then turn it into waste. The nitrogen then exits the body in dry form as uric acid crystals along with the feces.
In which animals excretion takes place by diffusion?
In some unicellular organisms like Chlamydomonas-(algae), Amoeba and Paramoecium excretion takes place by diffusion. In these unicellular organisms, elimination of metabolic wastes takes place by diffusion from the body surface into the surrounding water.
What are excretory organs give examples?
The systems that excrete wastes from the body. For example, the system of organs that regulates the amount of water in the body and filters and eliminates from the blood the wastes produced by metabolism. The principal organs of the excretory system are the kidneys, ureters, urethra, and urinary bladder.
What are the main organs of the excretory system and their functions?
Overview. The excretory system in humans consists mainly of the kidneys and bladder. The kidneys filter urea and other waste products from the blood, which are then added to the urine within the bladder. Other organs, such as the liver, process toxins but put their wastes back into the blood.