Bio 198 Exam 3 Cell Biology Review Questions and Correct Answers

What is a cell? The smallest unit of life What are the 3 aspects of the Cell Theory? 1. The cell is the smallest unit exhibiting the properties of life 2. All organisms are made of 1 or more cells 3. Each new cell arises from an existing cell What is the range of an Electron Microscope? 1 nm - 100 μm What is the range of a Light Microscope? 100 nm - Approx. 1.5 mm What is the range of the Human Eye? Approx. 110 μm - 1 m What are organelles? Membrane-bound structures within the cytoplasm that have specific functions What three structures/components do all cells have in common? - Cell membrane - Ribosomes - DNA Where is the DNA located in a Prokaryotic cell? Nucleoid What the relative size of a Prokaryotic cell? Small Do Prokaryotic cells have Organelles? No What are examples of Prokaryotic cells? Bacteria, archaea Where is the DNA located in a Eukaryotic cell? Nucleus What is the Relative size of a Eukaryotic cell? Large Do Eukaryotic cells have Organelles? Yes What are examples of Eukaryotic cells? Animal, plant, fungi, protista What are the 4 types of Eukaryotic cells? 1. Protista 2. Fungi