Biology- B3 Part C

Across

• 1. .... can relieve symptoms: Painkillers relieve pain but don't attack or kill the pathogen. Other drugs just reduce symptoms, don't do anything to pathogen. Antibiotics actually kill the bacteria. Different antibiotics kills different pathogens (5)
• 4. Plant Defenses: A waxy cuticle on leaves provides a barrier. Surrounded by cell walls made from cellulose also providing a barrier. Layers of dead cells around stems act as barriers (8)
• 5. ... of vaccinations: Vaccines don't always work, may not give you immunity. You can have bad reactions to a vaccine but they are very rare (9)
• 6. ... of vaccinations: Vaccines help control lots of communicable diseases that were once common in the UK e.g. polio or smallpox. Big outbreaks of disease called epidemics can be prevented if a lot of the population is vaccinated (9)
• 8. Bacteria become ... to antibiotics: Bacteria can mutate. ... bacteria will survive antibiotics and reproduce so population increases. The strain of ... bacteria can cause serious infection (9)
• 9. A ... antibody is lots of identical Hybridoma cells which are formed when fusing a Tumour cell and a mouse B-lymphocyte. they can bind to whatever you want them to (10)