हिंदी

Define Excretion - Science

Advertisements
Advertisements

प्रश्न

Define excretion

परिभाषा

उत्तर

Excretion is the process that biological organisms use to expel or eliminate the waste products produced by their metabolisms. In order for cells to survive, they need to perform certain biochemical reactions, as these reactions take place, some byproducts are formed which can be toxic or lethal to the cells if they are allowed to accumulate. The process of excretion collects these wastes, and rids them from the cellIn multicellular organisms, these wastes must then be excreted from the body.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2017-2018 (March) Delhi Set 1

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Explain the term haemodialysis.


Why is it necessary to excrete waste products?


Draw a diagram of the human excretory system and label the various parts.


Name a waste gas released by the plants only during the daytime.


How are waste products excreted in Amoeba?


What is the function of excretory system in humans?


What is urethra?


The excretory organs in an earthworm are:
(a) nephridia
(b) nephrons
(c) raphides
(d) ureters


Name the following: 

The vein in which urea concentration is maximum 


One of the following sets of body parts or substances or processed, pick out the one item which overall includes the remaining foir.

Skin, liver, lungs, kidneys, excretion.


Given below is a simple diagram of the human kidney cut open longitudinally. Answer the following questions:

c
(v) Write two differences in the composition of the blood flowing through blood vessels A and B.


Complete the following sentence with appropriate word:

The U-shaped portion of a nephron located in the medulla region is called ______.


Complete the following sentence with appropriate word:

______ supplies blood to kidney.


State the Location: Medulla of Kidney


Choose the correct option.

Deproteinised plasma is not found in ______.


Answer the following question.

Birds are uricotelic in nature. Give reason.


The product of the process of deamination is ______.


The CORRECT match is ______.


In a person the tubule part of the nephron is not functioning at all. What will its effect be on urine formation?


The process of removal of unwanted metabolic wastes from the body is called ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×