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Cells Animal cells Plant cells Specialised cells Organisation
Organ systems
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Exercise 1: Label the Animal Cell
Cytoplasm C. ____________ Cell membrane A. ________ Nucleus
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Exercise 2: Label the Plant Cell
Vacuole C. __________ Cytoplasm D. __________ Chloroplast A. ________ Cell wall
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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
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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.
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Why do cells have different shapes?
Are all cells the same shape ? Why do cells have different shapes?
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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
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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
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Exercise 5: Link the Cells with the Diagram
B. D. C. A. Palisade cell Ciliated cell Red blood cell Sperm cell
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Do cells work on their own?
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
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Cells to Tissues Muscle tissue Muscle cell Nerve cell Nerve tissue
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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
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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.
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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
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Root hair cells are grouped together to form root hair tissue
The root contains root hair and xylem tissue
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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
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When things go wrong.
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1. Put the title New cells 2. Answer questions 3 & 4 from page 13
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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??
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To finish 7Ac Shaped for the job Match the columns
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Exercise 6: Match the Words and Diagrams
Cell Tissue Organ Organ system
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Exercise 10: Name the Systems
B. C. D. A. Digestive Skeletal Respiratory Excretory
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