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Question
Which of the following are functions of phycobiont in a lichen?
Which of the following are functions of phycobiont in a lichen?
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Solution
The correct option is B Both A and B
a) The phycobiont part of lichen is the autotrophic part which constitutes algae. The function of autotrophic algae is to provide nutrition. It synthesizes organic food by the process of photosynthesis.
b) If the algal component is blue-green algae, then apart from photosynthesis phycobionts also carry out nitrogen fixation. Nostoc, blue-green algae consist of heterocysts that have the enzyme nitrogenase. Nitrogenase converts atmospheric nitrogen into a usable form of nitrogen.c) Mineral absorption is done by fungal mycelium.
So the correct answer is ' Synthesis of organic food and NItrogen fixation'.
a) The phycobiont part of lichen is the autotrophic part which constitutes algae. The function of autotrophic algae is to provide nutrition. It synthesizes organic food by the process of photosynthesis.
b) If the algal component is blue-green algae, then apart from photosynthesis phycobionts also carry out nitrogen fixation. Nostoc, blue-green algae consist of heterocysts that have the enzyme nitrogenase. Nitrogenase converts atmospheric nitrogen into a usable form of nitrogen.
c) Mineral absorption is done by fungal mycelium.
So the correct answer is ' Synthesis of organic food and NItrogen fixation'.
So the correct answer is ' Synthesis of organic food and NItrogen fixation'.
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