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KEY STUDY GUIDE FOR CHAPTER THREE 1. Label all 13 organelles of a plant cell. 8-Mitochondrion 1-Cytoplasm 2–Chloroplast 9–Golgi Complex 3-Ribosome 4-Nucleus 5-Chromosomes 10–Endoplasmic Reticulum 11-Vacuole 6-Nuclear Membrane 12–Cell Wall 7-Lysosome 13–Cell membrane 2. Label all 10 organelles of an animal cell. 6-Mitochondrion 7-Ribosome 1-Endoplasmic Reticulum 2-Nucleus 3 - Chromosomes 4-Nuclear Membrane 5-Lysosome 8-Cell Membrane 9-Cytoplasm 10-Golgi Complex 3. Identify the three organelles in a plant cell which an animal cell does not have. 1. Large vacuole 2. Cell Wall 3. Chloroplast 4. Identify the organelle in an animal cell which a plant cell does not have. 1. Lysosome 5. Who was the first person to discover cells? What tool did he build to see them? Robert Hooke – discovered cork cells by looking through his microscope 6. Who are the three scientists (last name only) that developed the cell theory? 1. Schleiden 2. Schwann 3. Virchow 7. What are the three parts of the cell theory? 1. All organisms are made of one or more cells 2. The cell is the basic unit of all living things 3. All cells come from existing cells 8. Explain the difference between a prokaryotic cell and a eukaryotic cell. -Prokaryotic Cells: an organism that consists of a single cell that does not have a nucleus or membrane-bound organelles -Eukaryotic Cells: an organism made up of cells that have a nucleus enclosed by a membrane; most are multicellular 9. List of levels of organization of living things beginning with the organelle (lowest level) to organism (highest level). Define each term. 1. Organelle Definition: Tiny organs inside cells that perform specific functions 2. Cell Definition: The smallest functional and structural unit of all living organisms 3. Tissue Definition: A group of similar cells that perform a common function 4. Organ Definition: A collection of tissues that carry out a specialized function of the body 5. Organ System Definition: A group of organs that work together to perform body functions 6. Organism Definition: A living thing; anything that can carry out life processes independently 7. What are the 3 benefits of being multicellular? Why are these things beneficial? 1. Larger size WHY? Multicellular organisms are prey for fewer predators and can eat a wider variety of prey 2. Longer life WHY? The life span of a multicellular organism is not limited to the life span of any single cell 3. Specialization WHY? Makes the organism more efficient 8. What is the difference between smooth endoplasmic reticulum and rough endoplasmic reticulum? Smooth ER: has no ribosomes attached. Its purpose is to make lipids and breaking down toxins that could damage the cell. Rough ER: is the location of the ribosomes. This is where proteins are made. It is usually near the nucleus. 9. Pick three of the words that are the hardest for you to remember and write ways to help you remember them on the test. You can use analogies, pictures, or words. Word #1:______________________________ Way to remember the word: Word #2:______________________________ Way to remember the word: Word #3:______________________________ 10. Way to remember the word: REVIEW: State the six characteristics of living things (from your in-class poster). 1. Living things are made up of one or more cells 2. Living things sense and respond to change 3. Living things reproduce 4. Living things have DNA 5. Living things need and use energy 6. Living things grow and develop 11. REVIEW: State the 4 basic needs of all living things. 1. water 2. food 3. air 4. shelter 12. REVIEW: List the five building blocks of living thing and one function of each. 1. Building Block: Protein Function: Help cells do their job, protect cells, build and repair body structures, speed up chemical reactions 2. Building Block: Lipids Function: Store fat; source of energy; form part of the cell membrane 3. Building Block: ATP Function: Major source of energy in a cell 4. Building Block: Nucleic Acid Function: Blueprint of life – instructs the cell how to make proteins 5. Building Block: Carbohydrates Function: Source of energy; store energy YOU ALSO NEED TO STUDY ALL VOCABULARY WORDS FROM THIS UNIT. To test your progress, take the pretest on the next page. Study the words first. Then take the pretest. Grade your pretest. Focus your studies on the words that you miss. IT WILL NOT BENEFIT YOU TO COPY THE ANSWERS ON THIS SECTION.