Specialised Cells Module 2.3 (page 69).

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Presentation transcript:

Specialised Cells Module 2.3 (page 69)

Multicellular organisms Humans are multi-cellular animals. That means we are made of lots of cells, not just one cell. Cells work together but they do not do the same thing We have specialised cells which means that each cell has a certain structure to help complete a unique job in our body

Specialised animal cells Animals are more complex than plants and they have a greater variety of different cell types. The human body contains about 50 trillion cells and more than 200 different types of cells. Can you think of some different types of cells in your body? Specialised animal cells

Specialised Cells

Specialised cells – Animals

More specialised animal cells Egg cells Sperm cells

Specialised Plant Cells Photosynthetic cells Specialised Plant Cells Guard cells Structural cells Conducting cells Xylem Phloem Root hair cells

Cut and Paste Activity

Specialised Animal Cells

Specialised Animal Cells

Specialised Plants Cells

Review Questions Cell Wall (page 74) Q1,2,3,5,6,8 Keeps the cells shape (usually rectangular) Acts as the skeleton of the plant Lies outside the cell membrane Only in plant cells, fungi cells and monera cells Review Questions (page 74) Cell Wall Q1,2,3,5,6,8