Science revision cards

Science revision cards for all topics in year 7

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  • Created by: Annii
  • Created on: 19-06-11 18:33

Specialized cells

1. Sperm cell

Has long tail used for swimming effectively

Has a pointed head used for breaking through egg cell membrane

2. Red blood cell

Dipped in centre for maximum surface area

Has no nucleus- maximum space for carrying oxygen

3. Root hair Cell

Long, can stretch far for a large surface area to absorb more nutrients

Has a large vacuole for storage. 

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Parts of a palisade cell

1. Vacuole- stores cell sap

2. Cell wall- Gives the cell structure and support

3. Cell membrane- Controls what goes in and out of the cell. 

4. Chloroplasts- Contains a chemical caled chlorophyll used for photosythesis

5. Cytoplasm- Where the chemical reactions happen

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