Paper 1 Biology Triple Content

10. Maximum incubation temperature (in words, not numbers!) allowed in schools to reduce the likelihood of pathogens growing.
12. The yellowing of plant leaves.
13. Dish used to grow bacteria in the lab.
14. Loop used to transfer bacteria to a plate, which must be sterilised in a Bunsen flame.
16. Type of plant defences that include thorns or leaves that curl when touched.
17. Pests that can damage plants and reduce their growth.
19. Method by which bacteria multiply (6,7.)
20. Chemicals used to prevent bacterial growth inside the body.
22. Type of plant defences that include poisons or substances that cause stinging or irritation.

1. Chemical used to prevent bacterial growth, which can be used on human skin.
2. Type of white blood cell extracted from mice in the production of monoclonal antibodies.
3. Antibodies produced from a single clone of cells that are specific to
4. A deficiency in this ion can cause yellowing of plant leaves.
5. This is created when a lymphocyte and a tumour cell are fused together during monoclonal antibody production..
6. Chemical used to prevent bacterial growth, which can be used on environmental surfaces.
7. Jelly used as a culture medium for growing bacteria.
8. binding site on one antigen.
9. Type of plant defences that include cellulose cell walls, tough waxy cuticles, or a layer of bark.
11. Deficiency in this ion can cause stunted plant growth.
15. When investigating chemicals on bacterial plates, clear areas where no growth occurs are called zones of ___.
18. Techniques used to grow uncontaminated cultures of microorganisms.
21. Aphids feed on the sugar-rich sap from this plant transport vessel.