BIOLOGY101: Cell Biology Flashcards EXAM NEWEST VERSION QUESTIONS AND ACCURATE ANSWERS VERIFIED 2024-2025 ACTUAL EXAM Q1 What name is given to the basic functional and structural unit of all living organisms? Answers: cell 2 Q The cell theory, originally composed in 1838, includes three primary tenets. Name them. Answers: 1. The cell is the basic unit of life. 2. All living things are composed of cells, whether one or many. 3. All cells arise from other cells. 3 Q What main features characterize eukaryotic cells?Answers: They have membrane-bound organelles, including nuclei, and linear chromosomes. They are also larger than prokaryotic cells and differ in specific aspects like flagellum structure. Eukaryotic cells can comprise either unicellular or multicellular organisms. 4 Q Define: organelle Answers: A separate, specialized structure within a cell. Many organelles are enclosed by lipid bilayers, but some, including ribosomes, are not membrane-bound. 5 Q Which organelles are membrane-bound? Answers: nucleus mitochondria Golgi apparatus endoplasmic reticulum peroxisomes lysosomesIn plants, chloroplasts and vacuoles fall into this category as well. Ribosomes, on the other hand, are not membrane-bound; while some are attached to the ER, they are not surrounded by membranes of their own. 6 Q Which organelles contain DNA? Answers: