Question

Determine if each hazard is chemical, physical, or microbial by matching the

numbers.

1. Salmonella bacteria
2. Broken needle
3. E. coli bacteria
4. Drug residue
5.Piece of glass
6. Oil and grease residue

a. Chemical
b. Physical
c. Microbial

Answer 1

The hazards mentioned are categorized based on their nature: Salmonella and E. coli bacteria are microbial; a broken needle and piece of glass are physical; drug residue and oil and grease residue are chemical.

Step-by-step explanation:

For the student's question regarding the categorization of hazards as chemical, physical, or microbial, the answers are as follows:

• Salmonella bacteria - Microbial
• Broken needle - Physical
• E. coli bacteria - Microbial
• Drug residue - Chemical
• Piece of glass - Physical
• Oil and grease residue - Chemical

Matching these hazards to their respective categories:

1. Salmonella bacteria - c. Microbial
2. Broken needle - b. Physical
3. E. coli bacteria - c. Microbial
4. Drug residue - a. Chemical
5. Piece of glass - b. Physical
6. Oil and grease residue - a. Chemical

Chemical hazards generally include substances such as agrochemicals and environmental contaminants; they can damage cell components through reactions with proteins or membranes. Physical hazards involve objects which can cause injury or illness such as glass or metal fragments. Microbial hazards include bacteria, viruses, and parasites that can cause foodborne illnesses.