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प्रश्न
Explain in your own words with suitable examples.
How is excretion in plants useful to human beings?
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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
Draw a diagram of the human excretory system and label the various parts.
Mention the exact location of the Prostate gland.
Name an animal which absorbs oxygen through its moist skin.
Where is the dirty blood in our body filtered?
What is the role of glomerulus in the kidney?
Define excretion.
How are waste products excreted in Amoeba?
Explain the principle of dialysis with the help of a labelled diagram.
Fill in the blank.
Malpighian body consists of Bowman’s capsule and .....................
Name the following:
The vein in which urea concentration is maximum
Given below is a diagram of a human kidney, cut open longitudinally. Answer the following:
(i) Give definition of excretion.
(ii) Name the unit of kidney.
(iii) Why does the cortex of kidney show dotted appearance?
(iv) List the functions of the kidney.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Name the functional units of the kidneys.
Describe in brief how urine is produced in the human body.
Name the Following
The structural and functional units of kidney
Name the Following
The branch of renal artery which enters into Bowman’s capsule.
Name the Following
The process by which kidneys regulate the water content of the body.
State the Location: Medulla of Kidney
Hypotonic filtrate is formed in _______.
Answer the following question.
Name any one guanotelic organism.
Give reason:
Excretion is a necessary process of our body.
