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Introduction to Plant & Animal Cells Chapter 10 Lesson 3 Looking Inside Cells 1.

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Presentation on theme: "Introduction to Plant & Animal Cells Chapter 10 Lesson 3 Looking Inside Cells 1."— Presentation transcript:

1 Introduction to Plant & Animal Cells Chapter 10 Lesson 3 Looking Inside Cells 1

2 Essential Question What are cells made of? How do the Parts of a Cell Work?

3 Cell Types ProkaryoticEukaryotic No Nucleus No Organelles Example: Bacteria Contains Nucleus Contains Organelles. Example: Plant & Animal Cell 3

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12 Back to Page 384 12 1 2 3 4 5

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16 Plant Cell and Animal Cells 16

17 Home Learning Complete Lesson 4 Assess Your Understandings Review & Assessment Page 398 #12-17 “Cell” Phone- 4/4 Gizmo #16- 4/5

18 Essential Lab Microscope Activity Comparing Plant and Animal Cells 18

19 Animal Cells from the Cheek Using a toothpick, you can scrape some cells off the inside of our cheeks. You can imagine how often the skin on the inside of your cheeks rubs against your teeth -- whenever you move your mouth! Every time you move your mouth, a few cheek cells (called epithelial cells) rub off and you swallow them. Stained cells using a chemical called methylene blue 19

20 Plant Cells from the Elodea A floating, flowering plant common in ponds that has leaves that are only two cells thick! The green specks are chloroplasts, which are the little packets inside the cells containing chlorophyll (molecule that converts sunlight + carbon dioxide + water into sugar) 20

21 CharacteristicsPlant CellAnimal Cell Cell SizeLargeSmaller than plant cells Cell ShapeRectangularCircular Vacuoles A single centrally located vacuole. It takes up almost 90% of the cell volume. The vacuole stores water. If any, there are a number of small vacuoles spread throughout the cytoplasm that store water, ions and waste materials. Cell Wall Present A rigid cell wall made of cellulose helps plant maintain shape. Absent This allows animal cells to adopt different shapes. Chloroplasts Present Chlorophyll is the pigment that traps sun's energy which is utilized by plants to make food through the process of photosynthesis. This pigment is present in the chloroplasts. Absent As animals lack this pigment, they cannot make their own food. LysosomesAbsent Present Vesicles that contain enzymes that destroy dead cell organelles and other cells debris. Golgi Bodies In place of golgi bodies, its sub units known as dictyosomes are present. Complex Golgi bodies are present close to the nucleus. 21


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