Across
- 2. The bottom blood pressure number when the heart rests.
- 8. The yellow liquid part of blood that carries cells and nutrients.
- 11. Plant tissue that moves water and food around the plant.
- 12. The large vein that carries blood from the body to the heart.
- 14. Small tubes in the lungs that carry air to tiny air sacs.
- 15. Chemicals made by the body to fight specific germs.
- 16. Cells that control the opening and closing of leaf pores (stomata).
- 17. Natural substances in soil that help plants grow.
Down
- 1. The upper left chamber of the heart that receives oxygen-rich blood.
- 3. The movement of food (sugars) in a plant.
- 4. The lower right chamber of the heart that pumps blood to the lungs.
- 5. A hard substance that makes plant stems strong.
- 6. Tiny parts of blood that help stop bleeding.
- 7. Haemoglobin that has oxygen attached to it.
- 8. A device that helps control the heartbeat.
- 9. The upper right chamber of the heart that receives oxygen-poor blood.
- 10. The top blood pressure number when the heart beats.
- 12. Flaps in the heart or veins that stop blood flowing backwards.
- 13. Two large tubes that carry air from the windpipe into the lungs.
- 18. The lower left chamber of the heart that pumps oxygen-rich blood to the body.