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प्रश्न
Explain in your own words with suitable examples.
How is excretion in plants useful to human beings?
उत्तर
Excretion in plants results in the production of various kinds of excreta which are waste for the plant but are equally important for human use.
The following examples are helpful in proving the above fact:
- Oxygen which is an excretory product of photosynthesis is an absolute requirement for human beings to survive on Earth.
- Tannin is a waste plant product which is stored in leaves and bark. it is used in making tea all over the world.
- Plants store waste products in their leaves and bark which are shed off regularly. These shed-offs are used to make manure.
- Gum and resin are waste materials for plants but they have various uses for man.
- Essential oils are also waste products of plants which are stored in their leaves. These essential oils are used for various purposes by us.
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संबंधित प्रश्न
Describe the structure and functioning of nephrons.
What are the methods used by plants to get rid of excretory products?
The form in which glucose in stored in liver.
Correct the following statements by changing the underlined words:
The normal pale yellow colour of the urine is due to the presence of the pigment Melanin.
State if the following statement is true or false. Correct the statement if it is false.
Liver produces bile pigments from the hemoglobin of broken RBCs.
Differentiate between
tannins and resins
Answer the following in short.
List five waste products of plants.
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.
Differentiate between the following pairs of term :
Renal pelvis and renal papilla
Choose the odd one out in the following serie:
Column of Bertini, minora calyces, brain.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Mention two functions of the kidney.
Study the diagram given alongside and then answer the question that follow:
What is the technical term given to the process occurring in 2 and 3? Briefly describe the process.
State the Location: Medulla of Kidney
Choose the correct option.
Which one of the following organisms would spend maximum energy in the production of nitrogenous waste?
Answer the following question.
Birds are uricotelic in nature. Give reason.
The product of the process of deamination is ______.
Elimination of nitrogenous wastes in the form of uric acid takes place in ____________.
Among the following animals, the best conserver of water is ______.
