- Slides: 25
Cells Animal cells Plant cells Specialised cells Organisation Organ systems
Exercise 1: Label the Animal Cell B. _____ Cytoplasm C. Cell ______ membrane A. ____ Nucleus
Exercise 2: Label the Plant Cell B. _______ Vacuole C. _____ Cytoplasm A. ____ Cell wall D. Chloroplast _____
Exercise 3: Link the Word with the Description Vacuole Controls what enters and leaves the cell Chloroplast Controls the cell Cytoplasm Cell wall Contains cell sap Supports plant cells and is made of cellulose Cell membrane Absorbs sunlight for photosynthesis Nucleus Where chemical reactions occur
1. Which part of the cell controls the cell? The nucleus. 2. What happens in the cytoplasm? Where chemical reactions occur. 3. What does the cell membrane do? Controls what enters and leaves the cell, gives the cell shape. 4. Which three parts are in plant and animal cells? Nucleus, cytoplasm and cell membrane. 5. Which three parts are only found in plant cells? Vacuole, cell wall and chloroplasts.
Are all cells the same shape ? Why do cells have different shapes?
Specialised Cells 1 A sperm cell A leaf palisade cell The sperm cell is adapted to its function by being streamlined and having a tail so it can swim. The leaf palisade cell has a large surface area for efficient gas exchange. It also has lots of chloroplasts to absorb sunlight for photosynthesis.
Specialised Cells 2 A red blood cell The red blood cell is adapted to its function by having a large surface area for efficient absorption of oxygen. The ciliated cell has tiny hairs that filter out dust from the air you breathe and move mucus along as well. Ciliated cell
Exercise 5: Link the Cells with the Diagram B. C. A. Ciliated cell Sperm cell Red blood cell D. Palisade cell
Do cells work on their own? No 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
Cells to Tissues Muscle tissue Muscle cell Nerve tissue
A root hair cell takes in water Special cells found in plants Root hair tissue Palisade cells are packed with chloroplasts to help the plant make food Palisade tissue
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 7 Ad/4 Tissue matching and stick it in your book.
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
Root hair cells are grouped together to form root hair tissue The root contains root hair and xylem tissue
How do we get new cells? The nucleus splits into two The new daughter cells get bigger. A new cell membrane forms in the middle Once the daughter cells are full size, they can too can divide
When things go wrong.
• 1. Put the title New cells 2. Answer questions 3 & 4 from page 13
7 Ac/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? ?
To finish 7 Ac Shaped for the job Match the columns
Exercise 6: Match the Words and Diagrams Cell Tissue Organ system
Exercise 10: Name the Systems B. C. A. Digestive Skeletal Respiratory D. Excretory