Advertisements
Advertisements
प्रश्न
What are the methods used by plants to get rid of excretory products?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
What do kidneys excrete?
Why do some people need to use a dialysis machine? What does the machine do?
Where is urine carried through ureters?
Explain the principle of dialysis with the help of a labelled diagram.
Given below is a set of five terms. Rewrite the terms in their correct order so as to be in logical sequence.
Renal artery, urethra, ureter, kidney, urinary bladder.
Fill in the blanks in the following passage to make it a meaningful description.
In a nephron, the ______ flows through the ______ under great pressure. The reason for this great pressure is that the ______ (outgoing) ______ is narrower than the ______ (incoming). This high pressure causes the ______ part of the blood to filter out from the ______ into the ______ capsule.
Define the following term:
Osmoregulation
Choose the correct answer:
A condition of failure of kidney to form urea is called ____________
Look at the figure given below. It is a section of human kidney as seen from the front.
Which area/part (give its name and number given on the diagram) which contains the following:
(i) Malpighian capsule
(ii) The pyramids
(iii) Freshly collected urine
Give Technical Term:
The organ which filters out urea and uric acid from the bloodstream.
Complete the following sentence with appropriate word:
The sum total of all the chemical reactions taking place in the cell is known as ______.
State the Location: Renal pyramids
Write the functional activity of the following structure: Aldosterone
Write the functional activity of the following structure: Kidney
Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.
Adult frog is an amphibian, its mode of excretion is ______.
When uric acid is produced in excess, it gets deposited in joints, resulting in ____________.
Give two examples of the following:
Nitrogenous waste
Give two examples of the following:
Bile pigments
Salt excreting glands are found near ______ in marine birds like Albatross.
