Excretion Meaning
Excretion Meaning
Excretion : Excretion is a life process which involves removal of the waste material from our body. Excretory products are produced as a by product of metabolic and non metabolic activities. Excretion also occurs in plants. Water and oxygen they release during the process of photosynthesis are the waste by products of photosynthesis. Unicellular organisms also release waste in the form of nitrogen and sulphur gas which are not useful for them.
Excretory System :
An excretory system consists of different parts in different organisms. In unicellular organisms like Ameoba excretion occur by the process of phagocytosis. In plants it occur through special kind of cells called as stomata.
In invertebrates like earthworm nephridia are the main excretory organ. Higher organisms like fish, birds, reptiles and mammals have more complex systems for excretion. In Humans the excretory system consists kidneys, urethra, ureters and urinary bladder.
Which of the following are correct ? (a) The process of removal of wastes from the cells of living organisms is called excretion . (b) The organ system responsible for the removal of wastes is called Respiratory system .
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| Right Option : A | |||
| View Explanation | |||
In plants it occur through special kind of cells called as ____________________. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) Metabolism produces useful products as well as toxic (poisonous) by-products. (b) The removal of metabolic waste products from the body of an organism is known as excretion . (c) The major excretory products are carbon dioxide, excess water, and nitrogenous compounds like ammonia, urea, uric acid, etc. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
