Heterocyst is a structure which is associated witha)Reproductionb)Respirationc)Nitrogen fixationd)LocomotionCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Heterocyst is a structure related to nitrogen fixation which is found in cyanobacteria

Answer

Reproduction refers to the process of production of new progeny either by sexual or asexual means; reproductive structures in BGA include akinete, exospores, endospores, conidia, etc but not heterocyst. Thus, option A is incorrect. Respiration refers to oxidation of six carbon sugar, glucose into carbon dioxide with release of energy; the released energy is used in ATP synthesis. This makes option B incorrect as heterocysts have photosystem I that generate ATP without photolysis. Ability to move from one place to other is termed as locomotion; option D is incorrect as BGA move through gliding. Heterocysts are larger cells with thick walls and one or more pores. They are the active site of protein synthesis and rich in nitrogenase and hydrogenase enzymes which in turn serve in nitrogen fixation.

Answer

C

Answer

Heterocyst are the large thick walled nitrogen fixing cells , found in cyanobacteria and is the site of nitrogen fixation .

Answer

Explanation:
Heterocyst:
- Heterocysts are specialized cells found in some filamentous cyanobacteria.
- They are involved in the process of nitrogen fixation.
Nitrogen Fixation:
- Heterocysts are responsible for fixing atmospheric nitrogen into a form that can be used by the cyanobacteria.
- Nitrogen fixation is essential for the growth and survival of the cyanobacteria as nitrogen is a vital nutrient for their metabolism.
Function of Heterocysts:
- Heterocysts contain the enzyme nitrogenase, which is responsible for the conversion of atmospheric nitrogen into ammonia.
- This ammonia can then be used by the cyanobacteria for various metabolic processes, such as protein synthesis.
Importance of Nitrogen Fixation:
- Nitrogen fixation is crucial for the nitrogen cycle in ecosystems as it converts atmospheric nitrogen into a usable form for plants and other organisms.
- This process helps in maintaining the nitrogen balance in the environment and supporting the growth of various organisms.
Conclusion:
In conclusion, heterocysts are specialized cells that are associated with nitrogen fixation, a process that is essential for the growth and survival of cyanobacteria. By converting atmospheric nitrogen into a usable form, heterocysts play a crucial role in the nitrogen cycle and ecosystem dynamics.

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