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Name _______________________________________Date__________Period_______ Cells Sciencesaurus Book - Read pp 76-78 to answer the following questions Define: 1. Cell Basic unit of life. 2. Prokaryotic: Cells that do not have membrane bound structures. 3. Eukaryotic Cells that have membrane bound structures. 4. Unicellular Made up of only one cell. 5. Multicellular Made of many cells. 6. Give 3 examples of specific cells and describe their function (job). Root Cells- Absorb water. Nerve Cells- Relay information between your brain and body. Skin Cell- Protect the body from foreign objects. 7. Are the cells of small and large organisms the same size? Explain. All cells are about the same size, larger organisms just have more cells. 8. What cells should you be able to identify using our classroom microscopes? Animal cells, and plant cells. 9. How does the shape of the plant cell and animal cell differ (compare diagrams)? A plant cell has a rigid cell wall with a defined shape. Animal cells can be any shape. 10. What are chloroplasts? Food-making structures that contain green pigment. 11. Do all plants cells have chloroplasts? No. 12. Which ones don’t have chloroplasts? Why? Root cells because they do not get exposed to sunlight. 13. What is photosynthesis and where does it occur? The process that plants use to create food from sunlight and other absorbed materials. It occurs in the chloroplasts. OMM book - Read Lesson 7 – Exploring cells – p. 83-85 What are the three basic parts of an animal cell? Nucleus, cell membrane, and cytoplasm. Define and explain a little about each of the following structures: 1. Organelle “Little organs” inside that cell that have a specific job. 2. Cell membrane: This separates the cell from the rest of its environment. 3. Nucleus Regulates all activities that take place in the cell. 4. Chromosomes: Composed of DNA and occur in pairs. 5. DNA carries the hereditary traits that are passed of to the offspring. 6. Cytoplasm: Jelly-like substance between the cell membrane and nuclear envelope. 7. Name 3 other structures in animal cells. Ribosomes, mitochondria, ER, Golgi body. 8. What are some structures that plant cells have that animal cells do not have? Cell wall, chloroplast, plastid. 9. Define cell wall: Contains cellulose and protects and provides structure to the cell. 10. Define plastids: An organelle in a plant cell that contains pigment. 11. How does the vacuole of a plant cell and an animal cell differ? The vacuole in the plant cell is a lot larger. 14. Venn diagram – compare the diagrams and information on plant and animal cells. Animal cell Irregular shape Small vacuoles Plant cell ER, nucleus, cell membrane, lysosome, golgi body, mitochondrion, DNA, ribosomes, vacuole(s) Cell wall, regular shape, chloroplast, large vacuole, plastids