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प्रश्न
Visit a green house if there is one near your place. Observe how they grow plants. Find out how they regulate the amount of light, water and carbon dioxide to grow the plants.
उत्तर
-
Light Regulation:
- Use of Shading Nets: To control the amount of sunlight entering the greenhouse.
- Artificial Lighting: Additional lights may be used to ensure plants receive adequate light during low natural light conditions.
-
Water Regulation:
- Drip Irrigation Systems: Efficiently delivers water directly to the plant roots.
- Sprinkler Systems: Evenly distributes water over the plants.
- Humidity Control: Humidifiers or misters may be used to maintain the desired humidity levels.
-
Carbon Dioxide Regulation:
- Ventilation Systems: Ensures proper air circulation and CO2 levels.
- CO2 Enrichment: Some greenhouses use CO2 generators to increase the carbon dioxide concentration to enhance plant growth.
संबंधित प्रश्न
Why do organisms need to take food?
Name the following:
A parasitic plant with yellow, slender and tubular stem.
What is the mode of nutrition in fungi?
Define parasitic nutrition. Give one example
The process of obtaining food by Amoeba is known as:
(a) dialysis
(b) cytokinesis
(c) phagocytosis
(d) amoebiasis
One of the following organisms has a saprophytic mode of nutrition. This organism is:
(a) mushroom
(b) malarial parasite
(c) leech
(d) lice
One of the following organisms can live without oxygen of air. This organism is
(a) Amoeba
(b) Yak
(c) Yeast
(d) Leech
List two differences between 'Holozoic nutrition' and 'Saprophytic nutrition'. Give two examples of each of these two types of nutrition.
How does growing embryo get nutrition from the mother's blood?
Match the organisms given in Column I with their mode of nutrition given in Column II.
| Column 1 | Column II | ||
| (a) | Mango tree | (i) | Insectivorous plant |
| (b) | Mushroom | (ii) | Heterotrop |
| (c) | Pitcher plant | (iii) | Autotroph |
| (d) | Cuscuta | (iv) | Saprophyte |
| (e) | Elephant | (v) | Parasitic |
