5. 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

6. Ciliated cells move bacteria and dust away from the lungs
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

7. 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

8. 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

9. 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 …

10. 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

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

12. Plants have no skeleton for support
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.