Ques1. What is photosynthesis? Describe the requirements for photosynthesis.
Ques2. Give the word equation for photosynthesis.
Ques3. What xylem and phloem?
Ques5. What are insectivorous plants? Give two examples.
Ques6. With the help of an example explain how insectivorous plants trap insect.
Ques7. Describe two two ways in which nitrogen can be added back into the soil.
Ques8. Write a short note on each of the following, with one example each.
i- parasitic plants
ii- symbiotic plants
iii- saprophytic plants
Answers
Answer:
quesno.1-this is the process by which green plants can make their own food by sunlight , water, minerals and chlorophyll
quesno.2-6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
quesno.3- they work like transportation pipe xylem take water and minerals from root to leaves whereas phleom take the food prepared by leaf to other parts of plant
quesno.5-plants which can't make their own food by photosynthesis they depend on the insects for the food those plants are known as insectivorous plants. ex- pitcher plant and venus flytrap
quesno.6-Pitcher plant is the example of an insectivorous plant. In pitcher plant the leaf is modified to form a pitcher like structure. ... When an insect sits on the pitcher of the plant, the lid closes and the insect gets trapped inside the pitcher. The insect is then digested by the enzymes secreted by the cells of the plants.
quesno.7-by adding fertilizer and by planting leguminous plants which has rhizobium bacteria , the nitrogen fixing bacteria