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What do all these have in common?

What do all these have in common?. Specialised Cells. Learning Objectives :. Learning Activities:. Cells organize into tissues, tissues into organs, organs into organ systems, and organ systems into organisms describe the organization of cells into tissues, organs, and systems.

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What do all these have in common?

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  1. What do all these have in common?

  2. Specialised Cells Learning Objectives: Learning Activities: • Cells organize into tissues, tissues into organs, organs into organ systems, and organ systems into organisms • describe the organization of cells into tissues, organs, and systems • Discuss what is a specialised cell • Powerpoint showing different specialised cells • Match Up Activity! • Worksheet

  3. What is a specialised Cell? • Plants and animals consist of many cells and so are known as multicellular • They contain many different types of cells. • Each type of cell is designed to carry out a particular job or function. • This is known as cell specialism • Not all cells look the same. • Some cells have a special shape and features to help them do a certain job.

  4. Sperm cell Head contains enzymes & nucleus Designed to Fertilise eggs. Found in the Testes Tail A sperm is small and has a long tail that provides movement so it can swim and find an egg cell. The head contains enzymes which allow it to digest into an egg cell and join with it.

  5. Egg (Ovum) Cell • Designed to be Fertilised. • Found in the Ovaries. • An egg cell is large and bulky. • Contains yolk which provides a large food store for the new cell being formed. Cytoplasm containing yolk Layer of jelly Nucleus

  6. Palisade Cell • Designed for Photosynthesis • Found in the top of a leaf • Tall and has a large surface area to absorb water and minerals. • Packed with chloroplasts to help make plant food. Nucleus Chloroplasts

  7. Ciliated Cell • Designed to stop Lung Damage • They line all the air passages in the lungs. • They have tiny hairs called cilia. • Hairs sweep mucuswith trapped dust and bacteria back up the throat. Nucleus cilia

  8. Root Hair Cell • Thin cell wall makes it easy for minerals to pass through. Designed for absorbing. Vacuole thin cell wall • Has a large surface which helps it to absorb water and minerals. Cell membrane • Found in a plant root.

  9. Nerve Cell (neurone) Nucleus • They are long • They have connections at each end • Can carry electrical signals • Their job is to carry nerve impulses to different parts of the body.

  10. Red Blood Cell • Designed to carry oxygen • Found in blood. • Large surface area, for oxygen to pass through. • Contains haemoglobin, which joins with oxygen. • Has no nucleus

  11. Copy and fill in the gaps: Some cells have special jobs to do. They often have special shapes to help them do their job. We say that these cells are _________________ to do their jobs. A group of the same type of cells, all working together, is called a _________________ . A group of muscle cells all grouped together is called _________________ . Muscle cells help us to _________________ . adapted move muscle tissue

  12. Match up activity10 minutes

  13. Task: With a partner, sort the cell pictures with their functions Time: 10 minutes

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