D. Short Answer Type Questions
1. Write the equation representing the process of photosynthesis.
2. How are both fungus and alga benefitted in lichens? What is this association called?
3. Define nutrition and nutrients. What are the functions of stomata?
4. How is Rhizobium important for leguminous plants?
Answers
Answer:
1.answer. The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen
2.lichen is not a single organism; it is a stable symbiotic association between a fungus and algae and/or cyanobacteria. ... The lichen symbiosis is thought to be a mutualism, since both the fungi and the photosynthetic partners, called photobionts, benefit.
3.Stomata absorb carbon dioxide from air for photosynthesis. Stomata facilitates exchange of gases and transpiration.
4.Rhizobium is a bacterium found in soil that helps in fixing nitrogen in leguminous plants. It attaches to the roots of the leguminous plant and produces nodules. These nodules fix atmospheric nitrogen and convert it into ammonia that can be used by the plant for its growth and development.
Answer:
1. Chemical equation of photosynthesis:
6CO2+6H2O ----------->(in the presence of chlorophyll and sunlight) C6H12O6+6O2
2. Nutrition is the process in which living organisms can assimilate and utilise food for their basic needs. Nutrients are the substance that living organisms intake through food
Explanation: