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प्रश्न
Explain the importance of soil for plant growth.
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उत्तर
Soil is very important for the growth of the plant for the following reasons -
- Soil provides the base for the growth of the plants and provides a platform for the penetration of roots.
- It acts as a reservoir of the water.
- Soil has different minerals essential for the growth of the plant. Soil is the only medium from which soil obtains nutrients.
- Soil has organic materials essential for the growth of the plants.
- Soil has microorganisms that have a symbiotic relationship with the plant and these microbes assist the plant in their growth and life processes.
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संबंधित प्रश्न
Why is it necessary to excrete waste products?
_____________ secreted by the (ii) _____________ lobe of the pituitary gland. If this hormone secretion is reduced, there is an increased production of urine. This disorder is called (iii) ____________. Sometimes excess glucose is passed with urine due to hyposecretion of another hormone called (iv) _____________ leading to the cause of a disease called (v) ______________.
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.
Differentiate between the following pair on the basis of what is indicated in the bracket.
Ureter and Urethra [function]
How are waste products excreted in Amoeba?
Fill in the blank.
Malpighian body consists of Bowman’s capsule and .....................
Name the following:
The vein in which urea concentration is maximum
Write down the functional activity of the following parts,
Henle's loop ………………
Differentiate between:
Renal cortex and Renal medulla.
Differentiate between:
Ureter and Urethra.
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.
Name the Following
The division of the kidney which is light in colour and subdivided into conical renal pyramids.
Name the Following
The branch of renal artery which enters into Bowman’s capsule.
Give Technical Terms
The hormone that helps increase the reabsorption of water from the kidney tubules.
State the Location: Renal pyramids
Choose the correct option.
Which one of the following organisms excrete waste through nephridia?
Answer the following question.
Birds are uricotelic in nature. Give reason.
Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.
Among the following animals, the best conserver of water is ______.
Two green plants are kept separately in oxygen-free containers, one in the dark and the other in continuous light. Which one will live longer? Give reasons.
