20242025 FST 512 QUIZ

Which of the following is a general function of microbial toxins

• Promote photosynthesis

• Enhance host immunity

• Cause tissue damage in the host

• Facilitate plant growth

Microbial toxins are classified primarily based on their:

• Colour

• Source and mechanism of action

• Taste and texture

• Presence in fruits

Which type of toxin is typically heat-stable and produced by gram-negative bacteria?

• Exotoxin

• Endotoxin

• Enterotoxin

• Mycotoxin

Which of the following is an example of a bacterial exotoxin?

• Lipopolysaccharide

• Botulinum toxin
  
  

• Peptidoglycan

• Teichoic acid

Enterotoxins affect which part of the human body?

• Lungs

• Liver

• Intestinal tract

• Kidneys

Which bacterium produces the neurotoxin responsible for botulism?

• Staphylococcus aureus

• Escherichia coli

• Clostridium botulinum

• Salmonella enterica

Aflatoxins are primarily produced by:

• Candida albicans

• Aspergillus flavus

• Penicillium chrysogenum

• Saccharomyces cerevisiae

Which organ is most commonly affected by aflatoxin exposure?

• Heart

• Brain

•  Liver

• Lungs

Which organ is most commonly affected by aflatoxin exposure?

• Heart

• Brain

•  Liver

• Lungs

Ergot toxins, which can cause hallucinations, are produced by:

• Rhizopus stolonifer

• Fusarium species

• Claviceps purpurea

•  Trichoderma species