Multiple Choice
Which of the following is the most effective way to protect yourself from biological hazards associated with human sources in a laboratory setting?
19
views
1. Introduction to Microbiology
Introduction to Microbiology
Struggling with Microbiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is considered a biological contaminant in microbiology?
A
Lead (Pb)
B
Plastic debris
C
Escherichia coli
D
Mercury (Hg)
Verified step by step guidance1
Understand the definition of a biological contaminant: it refers to any living organism or its products that can contaminate a sample or environment, such as bacteria, viruses, fungi, or parasites.
Identify the options given: Lead (Pb), Plastic debris, Escherichia coli, and Mercury (Hg).
Recognize that Lead and Mercury are heavy metals, which are chemical contaminants, not biological.
Plastic debris is a physical contaminant, not biological, as it is non-living material.
Escherichia coli is a bacterium, a living microorganism, and therefore qualifies as a biological contaminant.
1:29mWatch next
Master Introduction to Microbiology Channel with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Introduction to Microbiology practice set
Problem sets built by lead tutorsExpert video explanations