Practice Questions
1.How do bacterial diseases make us ill?
Bacteria may produce poisons (toxins) that damage tissues and make us feel ill.
2. State the symptoms of Salmonella food poisoning
Fever, abdominal cramps, vomiting and diarrhoea are caused by the bacteria and the toxins they secrete.
3. A person who is on immunosuppressants due to an organ transplant has become infected with salmonella food poisoning. What treatment could be used to kill the infection?
Salmonella is a bacterial infection, so antibiotics can be used to treat the infection.
Factors affecting the rate of photosynthesis
Measuring & calculating rates of photosynthesis
Inverse square law and photosynthesis
Economics of enhancing the conditions in greenhouses
Investigating the effect of light intensity on the rate of photosynthesis