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ecialized cells Specialized Cells Specialized cells do we getfrom from HowHow do we get How do we get from to to to Specialised Cells What is a cell? Learning Objective: 1. I can name the two types of stem cells. 2. I can explain what a stem cell is and what they do in both plants and animals. 3. I can name 2 specialised animal cells and plant cells and describe how they are specialised. Starter: Grab a piece of paper A B Which one is the nucleus? C D E F H. Cordy-McKenna Honywood School A B Which one is a chloroplast? C D E F H. Cordy-McKenna Honywood School A B Which one is the vacuole? C D E F H. Cordy-McKenna Honywood School A B Which one is the cytoplasm? C D E F H. Cordy-McKenna Honywood School A B Which one is the cell wall? C D E F H. Cordy-McKenna Honywood School A B Which one is the cell surface membrane? C D E F H. Cordy-McKenna Honywood School A B Which one absorbs light for photosynthesis? C D E F H. Cordy-McKenna Honywood School A B C Which one is the cell surface membrane? H. Cordy-McKenna Honywood School A B C Which one is the nucleus? H. Cordy-McKenna Honywood School A B C Which one is the cytoplasm? H. Cordy-McKenna Honywood School Now write down the bits that are only found in plant cells H. Cordy-McKenna A: Chloroplast D: Cell surface membrane B: Nucleus E: Cell wall C: Vacuole F: Cytoplasm Honywood School Now write down the bits that are found in plant and animal cells H. Cordy-McKenna A: Chloroplast D: Cell surface membrane B: Nucleus E: Cell wall C: Vacuole F: Cytoplasm Honywood School Specialised... Specialised Cells Q: What does specialised mean?? A: Something that is designed to do a particular job Specialised... Specialised Cells Q: What is a specialised cell? A: A cell that has a special shape and features that help it to do it’s job Red blood cells Your Task Stuck round the room are some information sheets about different specialised animal and plant cells…. Your job is to extract the important information from the sheets to fill in on your worksheets What are some types of specialized cells? Comparing Animal Cells Animal and plant cells Cell surface membrane Cytoplasm Nucleus Comparing Plant Cells Chloroplasts (plant cells) Questions Questions 1. 2. 3. 4. 5. 6. 7. Why are nerve cells so long? Where are egg cells found? What is palisade cell specialised to do? Why does a root hair cell have a thin wall? The hairs in a ciliated cell are known as? What is a sperm cell designed to do? How are red blood cells different from other cells? Cell Differentiation Stem Cells (video: intro stem cells) Stem Cells Every cell cell in in the thebody body Every originated from fromaasmall smallgroup originated group stem cells. of stemofcells. Stem cells are Stem cells are unspecialized unspecialized (they have (they have‘given not been ‘given not been a job’ yet).a job’ yet). They can form specialized They can form cells when theyspecialized are cells when are put in the exposed tothey the right environmental conditions, right environmental conditions or remain remain unspecialized. unspecialized and or just actively divide.