Specialised cells ppt
- 1. Sperm cell •Designed to Head contains enzymes & nucleus Fertilise eggs. •Found in the Testes Tail •A sperm is small and has a long tail that provides • The head contains movement so it can swim special chemicals which and find an egg cell. allow it to digest into an egg cell and join with it.
- 2. Egg (Ovum) Cell Cytoplasm containing yolk • Designed to be Fertilised. • Found in the Ovaries. • An egg cell is large and bulky. • Contains yolk which Layer of jelly provides a large food store for the new cell being Nucleus formed.
- 3. Palisade Cell • Designed for Photosynthesis Nucleus • Found in the top of a leaf • Packed with chloroplasts to help make plant food. Chloroplasts
- 4. Root Hair Cell • Designed for Vacuole •Thin cell wall absorbing. makes it easy for minerals to pass through. thin cell wall •Has a large surface which Cell membrane helps it to absorb water •Found in a plant root. and minerals.
- 5. 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.
- 6. Red Blood Cell •Designed to carry oxygen •Found in blood •Large surface area •Contains a special chemical to hold oxygen •Has no nucleus