Final answer:
The statement that foods contaminated with pathogenic bacteria may not change in appearance, taste, or smell is true. Foodborne illness can result from such contaminated foods, and this highlights the importance of strict food safety practices.
Step-by-step explanation:
True or false: Foods that have been contaminated with pathogenic bacteria have no change in appearance, taste or smell. The correct answer is true. Food that has been contaminated with pathogenic bacteria may not necessarily exhibit any outward signs of contamination such as changes in appearance, taste, or smell. Therefore, the consumption of contaminated food can lead to foodborne illness without any prior indication that the food was unsafe. This underscores the significance of proper food handling, cooking, and storage practices to minimize the risk of consuming contaminated food.
Foodborne diseases can result from consuming food tainted with organisms like Salmonella, E. coli, and Listeria monocytogenes. While contamination can occur in both home and professional kitchens, regulatory agencies require routine bacteriological testing of food products to ensure safety before they reach the consumer.