B5

• What are some signs of plant diseases?

  Growths, malformed stems, discolouration
• How can gardening manuals help in identifying plant diseases?

  They provide information on symptoms and treatments
• What is one method for laboratory testing of infected plants?

  Testing kits containing monoclonal antibodies
• What is a hygiene practice to control the spread of diseases?

  Hand washing and disinfecting surfaces
• Why is isolation important in controlling disease spread?

  It prevents infected individuals from spreading diseases
• How can controlling vectors help in disease prevention?

  It stops the spread of diseases by reducing vector populations
• What is the role of vaccination in disease control?

  It protects large numbers of individuals against diseases
• What is a non-communicable disease?

  A disease that cannot be spread between organisms
• What is rose black spot and how is it spread?

  It is a disease spread by water and wind
• What are symptoms of rose black spot?

  Purple/black spots on leaves that turn yellow and make leaves drop early
• How does rose black spot affect photosynthesis?

  It reduces the plant's ability to photosynthesize
• What is the prevention method for rose black spot?

  Using fungicides and removing affected leaves
• What disease is caused by protists and how is it spread?

  Malaria, spread by mosquitoes
• What are symptoms of malaria?

  Recurrent fever
• What are prevention methods for malaria?

  Mosquito nets and anti-malarial medicine
• How do bacteria reproduce and what can they produce?

  Bacteria reproduce rapidly and can produce toxins
• What is Salmonella and how is it spread?

  It is a bacteria spread by contaminated food
• What are symptoms of Salmonella infection?

  Fever, vomiting, diarrhea, cramps
• What is the prevention method for Salmonella?

  Poultry vaccination to control spread
• How is gonorrhea spread?

  By direct sexual contact
• What are symptoms of gonorrhea?

  Thick yellow-green discharge and pain urinating
• What is the treatment for gonorrhea?

  Antibiotics, though resistant strains exist
• How do viruses reproduce inside an organism?

  They live and reproduce rapidly, damaging cells
• What are symptoms of measles?

  Fever and rash
• How is measles spread?

  By inhalation of droplets from coughing
• What is the prevention method for measles?

  Vaccination of young children
• How is HIV spread?

  By sexual contact and exchange of bodily fluids
• What are symptoms of HIV?

  Flu-like symptoms leading to AIDS
• What is TMV and how is it spread?

  TMV is a virus spread by direct contact of plants
• What are symptoms of TMV?

  Mosaic pattern and discoloration on leaves
• How does TMV affect photosynthesis?

  It reduces the plant's ability to photosynthesize
• What is a communicable disease?

  A disease that can be spread between organisms
• What is the difference between communicable and non-communicable diseases?

  Communicable diseases can spread; non-communicable cannot