Definitions [1]
Define Osmotic pressure.
The hydrostatic pressure which balances and prevents the osmotic inflow of water into concentrated solution is called osmotic pressure.
Osmotic pressure may be defined as the external pressure which should be applied to the solution in order to stop the phenomenon of osmosis, i.e., to stop the flow of solvent into the solution when the two are separated by a semipermeable membrane.
Important Questions [20]
- By taking two examples explain how has bio-fortification helped in improving food quality.
- Name the Following: Any One Inter-specific Hybrid Mammal.
- Bottled Fruit Juices Are Clearer as Compared to Those Made at Home. Explain.
- How has the mutation breeding helped in improving crop varieties? Give one example where this technique has helped.
- How has the breeding programme helped in improving the public nutritional health? State two examples in support of your answer.
- Name the following: The semi-dwarf variety of wheat is high-yielding and disease-resistant.
- Identify 'A', 'B', 'C' and 'D' in the Given Table
- Plant Breeding Technique Has Helped Sugar Industry in North India. Explain How.
- How has mutation breeding helped in improving the production of mung bean crop?
- Name Any Two Common Indian Millet Crops.
- Enumerate four objectives for improving the nutritional quality of different crops for the health benefits of the human population by the process of "Biofortification".
- In an agricultural field there is a prevalence of the following organisms and crop diseases which are affecting the crop yield badly: (a) White rust (b) Leaf and stripe rust (c) Black rot (d) Jussids
- State One Characteristic of Millets that Has Been Improved as a Result of Hybrid Breeding So as to Produce High Yielding Millet Crops.
- List the two steps the classical plant breeding involves.
- Answer the Following Question. How Did Plant Breeding Techniques Help North Indian Farmers to Develop Cane with Desired Characters?
- Identify ‘a’, ‘b’ and ‘c’ in the following table: S. No. 1. Crop Brassica, Variety Pusa Gaurav Insect Pests ‘a’ S. No. 2. Crop Flat bean Variety Pusa Sem 2 Pusa sem 3 Insect Pests ‘b’
- What is plant breeding?
- Suggest four important steps to produce a disease resistant plant through conventional plant breeding technology.
- "Man Can Be a Primary as Well as a Secondary Consumer." Justify this Statement.
- Suggest two advantages to a farmer for using apomictic seeds of hybrid varieties.
