Cell Structure & Function – BIO101 | 20 Verified Q&As on Organelles, Cytoplasm, ER, and More | Biology 2025

This expertly verified document contains 20 detailed question-and-answer pairs from Chapter 4 of the Biology 101 (BIO101) course, focusing on Cell Structure and Function. Topics include the roles of key organelles (mitochondria, Golgi apparatus, endoplasmic reticulum), differences between cytosol and cytoplasm, protein synthesis and transport, nuclear envelope pores, and the structure of prokaryotic versus eukaryotic cells. Concepts such as endosymbiosis, cytoskeletal functions, and the limitations of cell size are also thoroughly addressed. The document serves as an excellent revision tool for first-year biology students, as well as those studying biomedical sciences, biotechnology, nursing, or pre-med tracks. It is equally beneficial for high school students in advanced biology programs like AP Biology or IB Biology, offering reliable answers aligned with common exam topics. Clear, focused, and structured for rapid learning, this resource is perfect for test prep or reinforcing lecture materials. Keywords: cell structure, cytosol, cytoplasm, mitochondria, Golgi apparatus, endoplasmic reticulum, lysosomes, centrioles, nucleus, RNA transport, prokaryotic cell, eukaryotic cell, chloroplasts, cytoskeleton, protein synthesis, endosymbiosis, plasma membrane, rough ER, nuclear pores, mycoplasma