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Red blood cells transport oxygen

Red blood cells transport oxygen. cytoplasm contains no nucleus. cell surface membrane. allows more room for haemoglobin. cytoplasm contains haemoglobin. haemoglobin is a protein which carries the oxygen molecules. bi-concave disc shape.

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Red blood cells transport oxygen

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  1. Red blood cells transport oxygen cytoplasm contains no nucleus cell surface membrane allows more room for haemoglobin cytoplasm contains haemoglobin haemoglobin is a protein which carries the oxygen molecules bi-concave disc shape increases surface area over which absorption of oxygen can occur

  2. Ciliated cells move bacteria and dust away from the lungs cilia Cilia are small extensions of the cell. They beat rhythmically to sweep mucus, which has trapped bacteria and dust, away from the lungs nucleus magnification X3000

  3. Xylem vessels transport water and minerals up the plant xylem vessels are continuous tubes xylem vessel no cytoplasm hollow: allows for continuous flow of water and dissolved mineral ions lignin water-proof and strong; helps support the plant longitudinal section cross-section

  4. Root hair cells absorb minerals and water from the soil Cross-section of a root hair cell cell membrane semi-permeable, so will allow water and mineral ions into the cell cytoplasm contains no chloroplasts as no photosynthesis is needed root hair increases surface area for absorption of water and mineral ions

  5. Complete the following sentences to compare and contrast plant and animal cells: • Plant and animal cells are similar because they have… • However, they are different because …

  6. Plant and animal cells are similar because they have A NUCLEUS, CELL MEMBRANE, CYTOPLASM AND MITOCHONDRIA • However, they are different because ONLY PLANTS HAVE A CELL WALL, CHLOROPLASTS AND A VACUOLE

  7. Supporting a Plant Use the following sentence fragments to produce a short paragraph outlining why plant cells are different to animals cells.

  8. Plants have no skeleton for support. The rigid cell wall gives the cell strength. The vacuole keeps the cell inflated. • Plants make their own food using photosynthesis. They have chloroplasts with chlorophyll in them to do this.

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