Which of these components of a cell functions like the digestive system in the human body?
endoplasmic reticulum
golgi apparatus
mitochondria
plasma membrane

Mitochondria

Mitochondrion is an important organelle in plants because it is where biochemical processes of cells such as respiration takes place. The mitochondrion has a smooth outer membrane but a larger inner membrane. The inner membrane is about 70% protein and is very convoluted because that can even fit inside the outer membrane. Cell mitochondrion is the carrier of the Kreb's cycle in the matrix and it is responsible for the transfer of electron chain found in the cristae of the inner membrane.