Though the bacterial structure is very simple they are very complex in behaviour give comment to your answer
Answers
The basic elements of bacterial anatomy include (1) the cell wall and (2) the inner cell body, or cytoplasm. The latter is surrounded by a cytoplasmic membrane just inside the cell wall, and commonly contains various granules, other cell inclusions, and vitally important nuclear material. In addition, the entire bacterium may be enclosed in an envelope or sheath of slimy, viscous or gelatinous material, forming a more or less definite capsule. There may be organs of locomotion called flagella, and some bacilli have pili. Certain bacteria may develop internally special structures called spores.
Bacteria is a prokaryotic organism which has simple structure.But due to lack of advanced essential organelles it has to perform its function in very different way.
Explanation:
Bacteria has a simple structure in which it has cytoplasm, false nucleus, ribosomes (70S) , RNA , vacuoles etc. It lacks the specialized organelles.
So , to perform various function like nutrition , it has to extend its membrane also called pseudopodia, around the food, which later on fuses and thus engulfing the food. This is called holozoic nutrition.
Similarly, to remove the waste from body, it collects it firstly in vacuole which later on moves near periphery and fuses with membrane , the membrane breaks and throw the waste out of the cell.
Thus, these functions are complex due to lack of specialized parts.