This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Microbiology Pa 1 (History, Microscopy, Stains and Structure and Physiology of Bacteria), Subject name: Microbiology
Mesosomes in bacteria are functional unit for - 
Select and explain. 
A. Lipid storage, B. Protein synthesis, C. Respiratory enzymes, D. carbohydrate breakdown
C: Respiratory enzymes
Answer: C: Respiratory enzymes 
Explanation: Mesosomes: These are vesicular convoluted or multilaminated structures formed as invagination of the plasma membrane into the cytoplasm. Mesosomes are of two types--septal and lateral. Mesosomes are analogous to the mitochondria of Eukaryotes and are the principal sites of respiratory enzymes in bacteria.