SCIENCE7: Plant and Animal Cells

This will really help students in knowing Plant and Animal Cells. It has examples, explanations, exercises and activities.

1. 11/27/2020 1 SCIENCE 7 Plant and Animal Cells Welcome

2. MELC : Differentiates plant and animal cells according to presence or absence of certain organelles. Quarter : 2 Week : 8 Objectives: A. Identifies the difference and similarities of plant and animal cells; B. Compares and contrast plant and animal cells using a Venn diagram ; and C. Shows willingness to describe the functions of each organelle.

3. Let’s have a recap… How are you going to define a microscope?  It is an instrument used to see objects that are too small for the naked eye. Compound Microscope is categorized into three parts. What are they? Give its functions.  Illuminating parts- provide light  Magnifying parts- enlarge the specimen  Mechanical parts-adjustments and supports Give one part of the microscope and its functions.

4. Let’s start… Based on the song you’ve heard, what are cells made up of? What are the two types of cell? 3. Give some parts of the cells that you’ve heard in the song. Questions: Let’s listen to a song and make sure to listen attentively to answer the questions that follow. Link of the song: https://youtu.be/-zafJKbMPA8

5. What is a cell? Smallest unit of living organisms that is capable of performing life functions. Cells can only be observed under microscope. All living things, including plants and animals, are made up of cells. Two basic types of cells:

6. Anatomy of a Plant Cell

7. Anatomy of an Animal Cell

8. Common Parts of Animal and Plant Cells  It is the outer lining of the cell which encloses all other cell organelles; also known as the plasma membrane. Function: It supports and protects the cell. It also controls the movement of materials in/out of cell. It forms a barrier between cell and its environment.  Cell Membrane

9. Cytoplasm  It is the fluid substance that fills the cell. All the cell organelles are suspended in the cytoplasm. Function: The cytoplasm maintains the osmotic concentration of the cells and prevents them from bursting or shrinking.

10. Nucleus  It is a membrane bound organelle, spherical in shape. Most of the activities of the cell is directed by the nucleus. Function: All the cells in an animal has one complete set of genes in its nucleus. The genetic material DNA help in protein formation.  It is darkly stained are in the nucleus, it aids in protein formation and RNA synthesis.  Nucleolus

11. Mitochondria It is the power house of the cell. A spherical or rod shaped organelles and is enveloped by a double membrane. Function: The mitochondria aids in conversion of glucose to high energy molecules (ATP) for the cell.

12. Endoplasmic reticulum It is a large network of interconnecting membrane tunnels composed of both rough endoplasmic reticulum and smooth endoplasmic reticulum. Functions: They play an important role in the formation of the skeletal framework.

13. Golgi Apparatus They are flattened stacks of membrane bound sacs. It looks like the ER, and are located near the nucleus. Function: Its function is to modify proteins made by the cell and pack and export proteins to the cell parts. 

14. Ribosomes Ribosomes are found on the endoplasmic reticulum. Function: “protein factories” Together they help in manufacturing proteins for the cell following instructions of the nucleus.

15.   Vacuole A compartment covered by a single membrane . They are organelles for storage. Functions : Stores water, food, or waste for the cells.

16. Only in Plant Cells It is a rigid layer that surrounds the plant cells. Its main function is to provide rigidity, strength, protection against mechanical stress and infection. It is an elongated or disc- shaped organelle containing chlorophyll. It is the site for photosynthesis in a plant cell. Plastids are storage organelles. They store products like starch for synthesis of fatty acids and terpenes. Cell Wall Plastids Chloroplasts

17. Only in Animal Cells  A membrane bound organelles that contain digestive enzymes. They break down the waste products and detoxify the cell. Are organelles that become prominent only during cell division. It functions as the anchor for the cytoskeletons. Lysosomes Centrioles

18. Similarities between Plant cells and Animal cells Both have a cell membrane surrounding the cytoplasm. Both have a nucleus Both contain mitochondria

19. Differences between Plant cells and Animal cells ANIMAL CELL PLANT CELL Relatively smaller in size Relatively larger in size Irregular shape Regular shape No cell wall Cell wall present Small vacuole Large central vacuole Glycogen granules as food store Starch granules as food store Nucleus at the center Nucleus near cell wall

20. PLANT CELL ANIMAL CELL

21. Let’s wrap it up… I. Identify the parts of plant cell and animal cell that is being described below. mitochondria vacuole nucleus Cell membrane lysosomes 1. It is the powerhouse of the cell. 2. It stores water, food, or waste for the cells. 3. It is where most of the activities of the cell is directed. 5. They break down the waste products and detoxify the cell. II. Answer the following questions below. What are the similarities between plant cell and animal cell? How about their differences? 4. The outer lining of the cell which encloses all other cell organelles.

22. Let’s solve this… For online , submit your answer on Saturday, November 21, 2020 @ 02:00 PM to Google Classroom. For modular , write your answer on a short bondpaper and submit your answer on Tuesday, November 24, 2020 @ 08:00 – 04:00 PM here in school. November 16, 2020 OUTPUT #2.2: LET’S COMPARE AND CONTRAST TASK: Using Venn Diagram, compare and contrast plant cells and animals cells then answer the follow-up questions given. (50 points) Note: See Venn Diagram and questions on the next slide.

23. Let’s bring it home… ONLINE/MODULAR : QUESTIONS: How important is studying cells in our lives? Do we need to use microscope to see cells? Explain. How will you describe cell in one word? Explain. PLANT CELLS ANIMAL CELLS

24. ONLINE/MODULAR : For online, submit your work using short bondpaper with 1-inch each side on Saturday, November 21, 2020 @ 02:00 PM to Google Classroom. Let’s deepen more… November 16, 2020 ACTIVITY # 2.1: LET’S ILLUSTRATE… For modular, submit your work using short bondpaper with 1-inch each side on Tuesday, November 24, 2020 @ 08:00 – 04:00 PM here in school. TASK: Draw and label plant cells and animal cells. At the bottom part, specify the greatest significance of studying cells in the development of Biology and in our lives. (100 points) Note: See Venn Diagram and questions on the next slide.

25. November 16, 2020 LET’S STUDY IN ADVANCE… Let’s bring it home… Please study in advance Sexual and Asexual Reproduction. Sir Christian A. Ursabia ONLINE/MODULAR :

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