B1 Living Things

3. Seven characteristics of life: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition.
4. The basic building block of all living things.
8. Proteins made by white blood cells that recognise and destroy specific pathogens.
9. Controls the activities of the cell and contains genetic material.
12. A living thing too small to see without a microscope.
15. A large storage space in plant cells containing cell sap.
17. Jelly-like substance inside cells where chemical reactions happen.

1. A structure in plant cells where photosynthesis takes place.
2. An instrument used to magnify small objects such as cells.
5. The use of weakened or dead pathogens to stimulate immunity without causing illness.
6. A tiny infectious agent smaller than bacteria; only reproduces inside host cells.
7. Microorganisms such as mould and yeast; some cause infections, others are useful in food production.
10. The process plants use to make food using light, found in chloroplasts.
11. When your body remembers how to fight a pathogen so you do not get sick again.
13. Glass parts that magnify objects; total magnification = eyepiece × objective lense
14. A process where white blood cells surround and digest pathogens.
16. Single-celled microorganisms that come in shapes such as rods, spirals, and spheres; some cause disease, while others are useful.