BIOD 171 MODULE 4 QUESTIONS & ANSWERS 2026-2027 | PORT… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
BIOD 171 Module 4
Questions & Answers
2026-2027 | Portage
Learning Microbiology
Verified Answers Exam Ready With Rationales
38 QUESTIONS
DOCUMENT OVERVIEW
This document contains 38 verified questions with correct answers and detailed
explanations related to microbiology concepts. It serves as a comprehensive resource for
mastering the subject matter, ensuring a deep understanding of key principles. Students
can utilize it for effective study, review, and preparation for certification exams in
microbiology.
CONTENTS
Growth Media Q1–Q8
Bacterial Identification Q9–Q16
Microbial Growth Characteristics Q17–Q23
Hemolytic Activity Q24–Q29
Page 1
, Culturing Techniques Q30–Q38
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 38
T/F: Growth media is best suited for distinguishing between two similar species of bacteria
CORRECT ANSWER
False
growth media is designed to simply support (and not restrict) microbial growth
Q2 QUESTION 2 OF 38
T/F: LB agar is classified as a non-selective, non-differential media
CORRECT ANSWER
True
Q3 QUESTION 3 OF 38
The polysaccharide-based hardening agent added to LB media to produce LB agar is derived
from what?
CORRECT ANSWER
Seaweed extract
Q4 QUESTION 4 OF 38
T/F: Chocolate agar gets its brown color from cocoa to produce an enriched media
Page 2
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
BIOD 171 Module 4
Questions & Answers
2026-2027 | Portage
Learning Microbiology
Verified Answers Exam Ready With Rationales
38 QUESTIONS
DOCUMENT OVERVIEW
This document contains 38 verified questions with correct answers and detailed
explanations related to microbiology concepts. It serves as a comprehensive resource for
mastering the subject matter, ensuring a deep understanding of key principles. Students
can utilize it for effective study, review, and preparation for certification exams in
microbiology.
CONTENTS
Growth Media Q1–Q8
Bacterial Identification Q9–Q16
Microbial Growth Characteristics Q17–Q23
Hemolytic Activity Q24–Q29
Page 1
, Culturing Techniques Q30–Q38
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 38
T/F: Growth media is best suited for distinguishing between two similar species of bacteria
CORRECT ANSWER
False
growth media is designed to simply support (and not restrict) microbial growth
Q2 QUESTION 2 OF 38
T/F: LB agar is classified as a non-selective, non-differential media
CORRECT ANSWER
True
Q3 QUESTION 3 OF 38
The polysaccharide-based hardening agent added to LB media to produce LB agar is derived
from what?
CORRECT ANSWER
Seaweed extract
Q4 QUESTION 4 OF 38
T/F: Chocolate agar gets its brown color from cocoa to produce an enriched media
Page 2
