What is the main function of internal cell membranes?

What is the main function of internal cell membranes?

• A. Store genetic material
• B. Compartmentalize cell functions
• C. Facilitate cell division
• D. Increase cell size

Answer: (B)

The main function of internal cell membranes is to compartmentalize cell functions. This compartmentalization allows different cellular processes to occur in separate areas within the cell, enhancing efficiency and specialization. Internal membranes create distinct environments that can maintain varying chemical conditions, such as pH levels and ion concentrations, which are necessary for specific biochemical pathways. For example, the endoplasmic reticulum is involved in protein and lipid synthesis, while the mitochondria are responsible for energy production. This organization prevents potential conflicts between incompatible processes and allows the cell to maintain homeostasis more effectively. In contrast, storing genetic material primarily involves structures like the nucleus, and while cell division does require certain membrane dynamics, it is not a primary function of the internal membranes themselves. Increasing cell size is more related to growth processes and overall cell metabolism than to the compartmentalization function of internal membranes.

The main function of internal cell membranes is to compartmentalize cell functions. This compartmentalization allows different cellular processes to occur in separate areas within the cell, enhancing efficiency and specialization. Internal membranes create distinct environments that can maintain varying chemical conditions, such as pH levels and ion concentrations, which are necessary for specific biochemical pathways. For example, the endoplasmic reticulum is involved in protein and lipid synthesis, while the mitochondria are responsible for energy production. This organization prevents potential conflicts between incompatible processes and allows the cell to maintain homeostasis more effectively.

In contrast, storing genetic material primarily involves structures like the nucleus, and while cell division does require certain membrane dynamics, it is not a primary function of the internal membranes themselves. Increasing cell size is more related to growth processes and overall cell metabolism than to the compartmentalization function of internal membranes.