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प्रश्न
What are the methods used by plants to get rid of excretory products?
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उत्तर १
Plants can get rid of excess of water by transpiration. Waste materials may be stored in the cell vacuoles or as gum and resin, especially in old xylem. It is also stored in the leaves that later fall off.
उत्तर २
- Photosynthetic and respiratory wastes such as oxygen and carbon dioxide are used for respiration and photosynthesis. Any excess is expelled through the stomata.
- Excess water is removed through the process of transpiration.
- Waste products may be stored in leaves, bark, or other parts of the plant, which later fall off, removing the waste from metabolically active areas.
- In some plants, metabolic by-products are stored as crystals.
- Several substances, such as resins, tannins, and alkaloids, such as morphine and quinine, are also plant wastes, although they benefit humans.
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संबंधित प्रश्न
How is the amount of urine produced regulated?
Bile, Urea, Uric acid, Ammonia
Mention the exact location of the Prostate gland.
What gaseous waste products are excreted by plants?
Name a waste gas released by the plants only during the night time.
What is the role of glomerulus in the kidney?
Write True (T) or False (F) for the following statement. Rewrite the false statement in the correct form.
Urine is devoid of blood cells.
Why is excretion necessary in living beings?
Answer the following in short.
Define transpiration in plants.
Name the following:
The tuft of capillaries inside the Bowman's capsule.
Differentiate between the following pairs of term :
Renal pelvis and renal papilla
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1 to 8 are as follows:
1. Afferent arteriole from renal artery
2. efferent arteriole
3. Bowman’s capsule
4. Glomerulus;
5. Proximal convoluted tubule with blood capillaries;
6. Distal convoluted tubule with blood capillaries;
7. collecting tubule;
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Where does ultrafiltration take place?
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.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Write two differences in composition of the blood flowing through the blood vessels, 'A' and 'B'.
Describe in brief how urine is produced in the human body.
Complete the following sentence with appropriate word:
The knot of blood vessel inside the Bowman’s capsule is ______.
Choose the Odd One Out:
Choose the correct option.
What is micturition?
Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.
