Lakhmir Singh and Manjit Kaur Solutions for Chapter: Nutrition in Plants, Exercise 3: Long Answer Type Questions

Give a brief description of the process of synthesis of food in green plants. What is chlorophyll? What is the role of chlorophyll in photosynthesis?

How do plants get CO₂ for making food by photosynthesis?

Explain how, water and minerals are transported to the leaves of a plant to be used in food making by photosynthesis.

Describe briefly how nutrients are replenished in the soil? How is the growing of a leguminous crop in the fields beneficial to the farmer?

A person observes that some plants have deep red, violet and brown colored leaves. Can these leaves carry out photosynthesis? Give reason for your answer.

Describe the importance of photosynthesis for the existence of life on the earth.

What are the various modes of nutrition in plants? Give one example of each.

What do you understand by symbiosis? Explain with an example.