Multiple Choice
Vaccination against the hepatitis A virus is unnecessary if you:
63
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
Although all of the following methods will promote the prevention of food contamination, which is considered the most effective for killing most pathogenic microorganisms?
A
Covering food with plastic wrap
B
Storing food at room temperature
C
Heating food to at least 75°C for several minutes
D
Washing food with cold water
Verified step by step guidance1
Step 1: Understand the goal of the question, which is to identify the most effective method for killing most pathogenic microorganisms in food to prevent contamination.
Step 2: Review each option and analyze its effect on microorganisms: covering food with plastic wrap prevents new contamination but does not kill existing microbes; storing food at room temperature can actually promote microbial growth; washing food with cold water may remove some surface microbes but does not kill them effectively.
Step 3: Recognize that heating food to at least 75\degree C for several minutes is a form of thermal processing that denatures proteins and disrupts cell membranes of microorganisms, leading to their death.
Step 4: Recall that thermal death time and temperature are critical parameters in microbiology for ensuring food safety by effectively killing pathogens.
Step 5: Conclude that among the options, heating food to the specified temperature and duration is the most effective method to kill pathogenic microorganisms and prevent foodborne illness.
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