Biology Chapter 1
Across
- 2. a method of growing plants without the use of soil
- 4. chemical compounds present in our food which are essential for our body
- 6. penicillin is derived from a common fungus known as
- 10. living organism on which parasite depends for its nutrition
- 12. product of photosynthesis which is stored as starch
- 14. bacterium living in an association with roots of leguminous plants
- 15. symbiosis between alga and fungus
- 16. organism which can prepare their own food with the help of raw materials from the environment
- 17. aquatic plants which altogether produce more oxygen than land plants
- 18. mutually beneficial relationship established between 2 organisms living together
- 19. sucking roots in parasitic plants which penetrate into the host tissue
- 20. an organism which derives food from another living organism
Down
- 1. organisms which depend on plants directly or indirectly for nutrition
- 3. conducting tissues in plants for transport of water and minerals
- 5. source of energy for chemical reactions in photosynthesis
- 7. organelle present in leaf which contains chlorophyll
- 8. small openings present on the lower surface of the leaves
- 9. chemical substances used in fields to enrich it with nitrogen
- 11. coloured mushrooms which are poisonous and inedible
- 13. plants which exhibit a special mode of autotrophic and heterotrophic nutrition