1. Who among the scientists below said that animals are made-up of cells? A. Mathias Schleiden B. Robert Hooke C. Rudolf Virchow D. Theodor Schwann 2. What is the basic structural and functional unit of all living creatures? A. Cell B. Molecule C. Organelle D. Tissue 3. Which organelle holds the key for the continuation of a certain population to exist? A. Lysosomes B. Nucleus C. Peroxisomes D. Vacuoles 4. What is in the cell that makes it traceable through time? A. ATP B. DNA C. Lipid D. Protein 5. Where in the cell that all life-sustaining components are found? A. Cytoplasm B. Mitochondria C. Nucleus D. Peroxisomes​