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What is the primary function of pyrenoids in some green algae?
  • a)
    Storage of oil droplets
  • b)
    Storage of protein and starch
  • c)
    Photosynthesis
  • d)
    Sexual reproduction
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
What is the primary function of pyrenoids in some green algae?a)Storag...
Most of the members of green algae have one or more storage bodies called pyrenoids located in the chloroplasts. Pyrenoids contain protein besides starch. Some algae may store food in the form of oil droplets.
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Most Upvoted Answer
What is the primary function of pyrenoids in some green algae?a)Storag...
Function of Pyrenoids in Green Algae
Pyrenoids are specialized structures found within the chloroplasts of certain green algae and some other photosynthetic organisms. They play a crucial role in the metabolic processes of these organisms.

Primary Function: Storage of Protein and Starch
- Pyrenoids are primarily involved in the storage of carbohydrates, particularly in the form of starch.
- They act as centers for carbon fixation, where the enzyme ribulose bisphosphate carboxylase/oxygenase (RuBisCO) is located. This enzyme is vital for the conversion of CO2 into organic compounds during photosynthesis.

Additional Functions
- Pyrenoids are also associated with the production of proteins that are essential for the metabolic processes of the algae.
- In many green algae, the starch stored in pyrenoids can later be utilized as an energy source during periods of low light or when carbon dioxide is scarce.

Role in Photosynthesis
- While pyrenoids themselves do not directly participate in photosynthesis, they support this process by enhancing the efficiency of carbon fixation.
- The concentration of CO2 around RuBisCO within the pyrenoid helps to improve the rate of photosynthesis.

Conclusion
In summary, the primary function of pyrenoids in some green algae is indeed the storage of protein and starch. This functionality allows these organisms to thrive in varying environmental conditions, contributing to their survival and growth.
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Community Answer
What is the primary function of pyrenoids in some green algae?a)Storag...
Pyrenoids are small structures found inside some green algae. Think of them like tiny "factories" inside the algae cells that help with specific jobs. One of their main jobs is to store protein and starch.

Now, starch is like food for the algae—it’s a way for them to save energy that they make during photosynthesis (using sunlight to create food). So, pyrenoids act like storage rooms where the algae keep their energy in the form of starch and sometimes proteins.

That’s why the correct answer is b) Storage of protein and starch. Pyrenoids are not involved in making oil, photosynthesis directly, or reproduction. They’re mainly for storing food.
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