Final answer:
The function of all living cells is Synthesis, which involves creating complex molecules necessary for cell structure and function. Cellular respiration is a vital metabolic process that converts nutrients, typically glucose, into energy and involves both catabolic and anabolic reactions that respectively release and store energy.
Step-by-step explanation:
Functions of All Living Cells
The activity that is a function of all living cells is Synthesis (Option A). Synthesis is crucial because it is involved in creating complex molecules from simpler ones, which is fundamental to cellular structure and function. Options such as Locomotion (B), Anaerobic Respiration (C), and Extra-cellular Digestion (D) are not activities performed by all living cells. For example, some cells do not move, and not all cells perform anaerobic respiration or extra-cellular digestion.
Metabolic Processes
Cellular processes such as metabolism involve both Catabolic Reactions and Anabolic Reactions. Catabolic reactions break down large molecules into smaller ones and usually release energy (exergonic), making them crucial in the process like the digestion of sucrose (Option a). Anabolic reactions, on the other hand, build larger molecules from smaller ones and require an input of energy (endergonic), playing a role in processes like DNA replication. It's important to note that cellular respiration is a complex set of processes where cells convert nutrients into energy, usually involving glucose (not lipids as Option D incorrectly states), while water is essential for various processes, including digestion (Option a).