Question

Why are special respiratory organelles are absent in unicellular organisms?

Answer 1

Answer:

Because they only have one cell

Explanation:

All the functions of their body including respiration is done by a single cell

Answer 2

Unicellular organisms do not actually breathe in the conventional sense; instead, they respire by enabling oxygen to diffuse through the cell membrane. They lack the organs, pores, and entryways that multicellular organisms do to breathe since they are so little.

Explanation:

• Every live cell engages in cellular respiration.
• In contrast to multicellular organisms, unicellular organisms have a separate "breathing" system.
• Respiration is a metabolic process in which an organism's living cells use oxygen to obtain energy (in the form of ATP) and release carbon dioxide as a byproduct of the oxidation of complex organic molecules.
• The respiration of unicellular organisms can be either aerobic or anaerobic.
• They lack any breathing apparatuses for breathing.
• They breathe by diffusing air across their skin's surface.

However, in multicellular organisms, breathing is a far more intricate process that involves a unique respiratory system that acts as a bridge between the cells and the outside environment.

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