Where is digestion held in the Monera Kingdom?

Your question seems to contain an incorrect premise. The Monera Kingdom, as traditionally understood, does not possess a specialized digestive system like multiple-celled organisms. Members of the Monera Kingdom, which include bacteria and blue-green algae (cyanobacteria), do not have a well-defined digestive tract. Instead, they exhibit modes of nutrition that vary based on their specific characteristics.

Monera's Heterotrophic Nutrition:

Heterotrophic members of the Monera Kingdom, such as certain bacteria, obtain nutrients through external digestion. They secrete digestive enzymes into their surroundings, breaking down organic matter outside of their cells. The resulting simpler molecules are then transported into the cells. This process is known as extracellular digestion and often occurs in bacteria that live freely or as part of symbiotic relationships.

Monera's Autotrophic Nutrition:

Cyanobacteria, commonly referred to as blue-green algae, are autotrophic members of the Monera Kingdom. They possess the remarkable ability to carry out photosynthesis, a process that converts light energy from the sun into chemical energy. Autotrophic monerans use this energy to synthesize their own organic compounds, including sugars and proteins, from simple inorganic molecules.

In summary, the Monera Kingdom lacks a centralized digestive system like complex multicellular organisms. Different monerans exhibit distinct nutritional strategies, with heterotrophic species engaging in external digestion and autotrophic species utilizing photosynthesis to synthesize their own nutrients.