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Cells

Learn about the different parts of animal and plant cells, their functions, and the importance of specialized cells. Discover how cells form tissues, organs, and organ systems in living organisms. Explore various systems in the body and their roles.

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Cells

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  1. Cells Animal cells Plant cells Specialised cells Organisation Organ systems

  2. Exercise 1: Label the Animal Cell B. _________ Cytoplasm C. ____________ Cell membrane A. ________ Nucleus

  3. Exercise 2: Label the Plant Cell B. _______ Vacuole C. __________ Cytoplasm D. __________ Chloroplast A. ________ Cell wall

  4. Exercise 3: Link the Word with the Description Controls what enters and leaves the cell Vacuole Chloroplast Controls the cell Contains cell sap Cytoplasm Supports plant cells and is made of cellulose Cell wall Absorbs sunlight for photosynthesis Cell membrane Where chemical reactions occur Nucleus

  5. Which part of the cell controls the cell? • What happens in the cytoplasm? • What does the cell membrane do? • Which three parts are in plant and animal cells? • Which three parts are only found in plant cells? The nucleus. Where chemical reactions occur. Controls what enters and leaves the cell, gives the cell shape. Nucleus, cytoplasm and cell membrane. Vacuole, cell wall and chloroplasts.

  6. Why do cells have different shapes? Are all cells the same shape ?

  7. Specialised Cells 1 The sperm cell is adapted to its function by being streamlined and having a tail so it can swim. A sperm cell The leaf palisade cell has a large surface area for efficient gas exchange. It also has lots of chloroplasts to absorb sunlight for photosynthesis. A leaf palisade cell

  8. Specialised Cells 2 The red blood cell is adapted to its function by having a large surface area for efficient absorption of oxygen. A red blood cell The ciliated cell has tiny hairs that filter out dust from the air you breathe and move mucus along as well. Ciliated cell

  9. Exercise 5: Link the Cells with the Diagram B. D. C. A. Palisade cell Ciliated cell Red blood cell Sperm cell

  10. No Do cells work on their own? What is the name given to a group of similar shaped cells that do they same job ? Tissues A ciliated epithelial cell What is their function? Ciliated epithelial tissue in a lung

  11. Cells to Tissues Muscle tissue Muscle cell Nerve cell Nerve tissue

  12. Special cells found in plants A root hair cell takes in water Root hair tissue Palisade cells are packed with chloroplasts to help the plant make food Palisade tissue

  13. Work to do • 1. Use page 10 a& 11 to complete the worksheet, ‘Special cells’, by writing the answers on the sheet. Then stick the worksheet in your book. • 2. Complete the worksheet 7Ad/4 Tissue matching and stick it in your book.

  14. All systems go Muscle cells are grouped to form muscle tissue The heart contains muscle and nerve tissues Nerve cells are grouped to form nerve tissue

  15. Root hair cells are grouped together to form root hair tissue The root contains root hair and xylem tissue

  16. How do we get new cells? The nucleus splits into two A new cell membrane forms in the middle The new daughter cells get bigger. Once the daughter cells are full size, they can too can divide

  17. When things go wrong.

  18. 1. Put the title New cells • 2. Answer questions 3 & 4 from page 13

  19. 7Ac/5 Odd cell out Look at each set of cells. Work out what each cell is and what it does (its function). Then decide which is the odd one out. For example are they plant or animal cells? Do they have different structures in the cells??

  20. To finish7Ac Shaped for the jobMatch the columns

  21. Exercise 6: Match the Words and Diagrams Cell Tissue Organ Organ system

  22. Exercise 10: Name the Systems B. C. D. A. Digestive Skeletal Respiratory Excretory

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