Cell Specialization (1.1) What does it mean to be specialized?

Cell Specialization (3.01) Observations Function Name Location in the organism. Ex. 1 2 3 4 5 6 Special

When you see each cell type, DO NOT name it (even if you know) Write observations about the STRUCTURE. Start with the example:

Example

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6 http://www.youtube.com/watch?v=pahUt0RCKYc

Functions- Start with the EXAMPLE Functions- Start with the EXAMPLE. Does the structure match the function?

Match the following functions with each cell type based on their structure. Write the underlined portion. Carry impulses from the brain all over the body. Support and movement. Rigid. Strong due to layers. Offer protection for more delicate organs. Carry oxygen to organs through blood vessels. Used for movement. Created to flex and stretch over surfaces and to move bone. Contain LOTS of mitochondria for energy. Store excess water and pump it out to prevent single celled organisms from exploding. Move through blood vessels to seek out infection and invaders. They recognize them and destroy them.

Re-create: Cell # Observations Function Name Location in the organism. Ex. Tail Moving DNA to egg Sperm Cell testis 1 Used for Movement Muscle Cells 2 Carry Oxygen Red Blood Cells 3 Carry Impulses Nerve Cells (neurons) 4 Seek out infection and invaders White Blood Cell (immunity) 5 Support and Movement Bone Cell (osteocyte) 6 Store excess water and pump Contractile Vacuole Special

Thinkables: Complete sentences. Obviously the way a cell looks is different depending on the function. Do you think a cell will have differences in organelles depending on the function of that cell? Explain your answer. What organelle(s) would muscle cells need a lot of? True/False: The nucleus of a cell contains different types of DNA depending on the structure and function of the cell for that organism. Explain your answer. All cells have a phospholipid bilayer as a cell membrane. Thinking about the variety of shapes and sizes of cells what can you conclude about the cell membrane?

Cell Structures for Specialization Flagellum- tail-like structure used for movement Cilia- tiny hair-like structures used for movement Microvilli- tiny hair-like structures used to increase absorption Contractile vacuole- vacuole that pumps out excess water Eyespot- structure used to locate sunlight for photosynthesis phototaxis- movement towards sunlight chemotaxis- movement towards a chemical

Extra

Re-create: Stem Cell Undifferentiated Cell-can become anything !!! Observations Cell Type Function Location in the organism. Ex. Tail Sperm Moving DNA to egg testis 1 Muscle Used for Movement Entire body 2 Red Blood Cell Carry Oxygen Blood vessels 3 Nerve Cell (neuron) Carry Impulses 4 Immunity Cell Seek out infection and invaders 5 Bone Cell (osteocyte) Support and Movement 6 Contractile Vacuole Store excess water and pump Cytoplasm of single cell Special Bubbles, empty, round, plain Stem Cell Undifferentiated Cell-can become anything !!! Bone Marrow, Embryo, Umbilical cord

Stem Cells Stem Cells (3.02) Draw the picture below on the white paper. Are sperm and egg stem cells? Circle the cells that are undifferentiated stem cells. Stem Cells

Conclusion Continued… Watch: What are stem cells? https://www.youtube.com/watch?v=evH0I7Coc54 Write a statement that describes stems cells. How are they different from other cells. How can we use them to benefit humans?

Take a Stem Cell Article and complete the questions We will answer the questions and watch a short video.