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- Dictionaryexcretion/ɪkˈskriːʃn/
noun
- 1. (in living organisms and cells) the process of eliminating or expelling waste matter.
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Define excretion. Name the excretory unit of a kidney. Define excretion. Describe the structure of nephron. Write a note on the physiology of urine formation.
This is a vital function that helps in the smooth functioning of the human body. Kidneys are the main organs of the excretory system in human beings. Ureters, urinary bladder, and urethra along with blood vessels are the other components present. The urine that is formed in the kidneys is transported through the ureters to the urinary bladder.
Define excretion. Explain mechanism of urine formation. Excretion can be defined as the process of removal of nitrogenous waste produced by the metabolic activity of the cells. In humans, urea is the major nitrogenous waste. Uric acid and creatinine are also expelled in the process of excretion.
Solution. Verified by Toppr. Excretion is the process of removal of the waste, which was generated from the metabolic activities and production of energy, from the body of an organism. It is an essential process for all forms of life.
Answers: Human excretory system: (a) In humans, the excretory system consists of a pair of kidneys, a pair of ureters, urinary bladder and urethra. (b) Kidneys are two bean shaped organs lying at the back of the abdomen, one on either side of the vertebral column. Waste products from the blood and urine are removed by the kidney.
Explain the process OR Describe the mechanism of urine formation. Excretion is the removal of waste mainly urea with the help of urine by kidneys. Proteins are digested to form amino acids and the final by-product of the degradation of ammonia is urea. This urea containing blood (blood filtrate) is carried from the liver to the kidneys for its ...
Define excretion. Easy. Open in App. Solution. Verified by Toppr. The biological process involved in the ...
(a) Define excretion. (b) Name the basic filtration unit present in the kidney. (c) Draw excretory system in human beings and label the following organs of excretory system which perform following functions : (i) forms urine. (ii) is a long tube which collects urine from kidney. (iii) store urine until it is passed out.
Excretion can be defined as the process of removal of nitrogenous waste produced by the metabolic activity of the cells. In humans, urea is the major nitrogenous waste. Uric acid and creatinine are also expelled in the process of excretion.
Excretion in Plants. Plants perform photosynthesis which uses CO2, water, sunlight, and chlorophyll to synthesize food. During photosynthesis, oxygen is given out as a by-product. This oxygen acts as an excretory product and is given out by a process called diffusion. Certain plants perform a process known as photorespiration where oxygen is ...
