Which of the following best describes the physical relationship between the partners involved in lichens? Photosynthetic algal c
ells are surrounded by fungal hyphae Fungal cells are enclosed within photosynthetic algal cells Fungi that grow on rocks and trees are covered by algae Algal cells and fungal cells are randomly mixed together
The correct answer is- Photosynthetic algal cells are surrounded by fungal hyphae.
Explanation:
Lichens are the symbiotic association between any algal species and fungal species. The fungal partner in lichen is named mycobiont and photobiont is the algal partner.
The fungal partner surrounds the algal photosynthetic cells through its hyphae which forms the unique anatomy of lichens. Many species of fungus penetrates algal cell to obtain its nutrition from algae.
Lichens can grow on any surface and they are very good pollution indicators because they do not tend to grow in polluted areas. Therefore the right answer is -Photosynthetic algal cells are surrounded by fungal hyphae.
Most organisms cannot obtain nitrogen from the atmosphere. Nitrogen fixing bacteria take Nitrogen out of the atmosphere and make it available for consumption by the other organisms, This is important because Nitrogen is an essential building block of life.