Identify the primary function of each organelle listed in the options. Ribosomes are responsible for protein synthesis. The rough endoplasmic reticulum (RER) is involved in the synthesis and modification of proteins, while the smooth endoplasmic reticulum (SER) is involved in lipid synthesis and detoxification processes.
Evaluate the role of lysosomes, which are primarily involved in the breakdown of waste materials and cellular debris, not in the synthesis of molecules.
Consider the function of vacuoles, which are mainly involved in storage and maintaining cellular homeostasis, rather than synthesizing molecules.
Analyze each group of organelles in the options to determine which combination is primarily involved in the synthesis of molecules. The combination of ribosome, rough endoplasmic reticulum, and smooth endoplasmic reticulum is directly involved in synthesizing proteins and lipids.
Conclude that the correct group primarily involved in synthesizing molecules needed by the cell is the combination of ribosome, rough endoplasmic reticulum, and smooth endoplasmic reticulum.