Final answer:
All organelles in a cell work collaboratively to perform the life processes necessary for the cell to function, maintain homeostasis, and interact with its environment. Processes like diffusion and active transport are key components of these life processes.
Step-by-step explanation:
In a cell, organelles work together to carry out the life processes for the cell. This includes not only diffusion and active transport but also information storage, metabolism, energy transformation, and many other critical biological processes. Each organelle has a specific function that contributes to the cell's health and activity. For instance, the endoplasmic reticulum (ER) helps in lipid synthesis and protein processing, the Golgi apparatus modifies and packages proteins, and lysosomes breakdown unwanted materials.
While diffusion processes like osmosis involve the passive movement of molecules, active transport requires energy to move substances against their concentration gradient, often with the help of protein pumps or through vesicular transport. Passive and active transport are both essential aspects of how cells maintain homeostasis and handle substance exchange with the environment. Therefore, the correct answer is (D) the life processes for the cell.