Portage Learning Microbiology
BIOD 171 | Module 6 Exam |
Questions & Verified Answers | A+
Graded | 2025/2026 Edition
Section 1: Introduction
This document provides the verified Module 6 Exam for BIOD 171 – Microbiology from
Portage Learning, updated for the 2025/2026 academic cycle. It focuses on microbial
diversity, including viruses, fungi, protozoa, and helminths, with an emphasis on structure
and classification. All questions include 100% accurate answers, A+ graded, to deepen
knowledge of microbial taxonomy.
Section 2: Exam Questions and Answers
Format: Multiple-choice questions
• Four answer choices per question (A–D)
• Correct answer highlighted
• Includes clarifying notes where applicable
1. What is the defining feature of viruses?
(a) Cell wall
(b) Acellular structure
(c) Ribosomes
(d) Mitochondria
Acellular structure
Note: Viruses lack cellular organization.
2. Which component is found in all viruses?
(a) DNA
(b) RNA
(c) Protein coat
(d) Lipid envelope
Protein coat
Note: Capsid protects the genetic material.
3. What is the function of the viral envelope?
(a) DNA storage
(b) Host cell attachment
, (c) Energy production
(d) Protein synthesis
Host cell attachment
Note: Derived from host membranes.
4. Which virus has a single-stranded RNA genome?
(a) HIV
(b) Herpes simplex
(c) Adenovirus
(d) Hepatitis B
HIV
Note: Retroviruses use RNA.
5. What is the lytic cycle?
(a) Integration into host genome
(b) Immediate viral replication
(c) Latent phase
(d) Host cell repair
Immediate viral replication
Note: Leads to host cell lysis.
6. Which cycle integrates viral DNA into the host?
(a) Lytic
(b) Lysogenic
(c) Latenic
(d) Productive
Lysogenic
Note: Provirus stage.
7. What is a bacteriophage?
(a) Fungal pathogen
(b) Virus infecting bacteria
(c) Protozoan parasite
(d) Helminth
Virus infecting bacteria
Note: Attacks bacterial cells.
8. Which virus causes AIDS?
(a) Influenza
BIOD 171 | Module 6 Exam |
Questions & Verified Answers | A+
Graded | 2025/2026 Edition
Section 1: Introduction
This document provides the verified Module 6 Exam for BIOD 171 – Microbiology from
Portage Learning, updated for the 2025/2026 academic cycle. It focuses on microbial
diversity, including viruses, fungi, protozoa, and helminths, with an emphasis on structure
and classification. All questions include 100% accurate answers, A+ graded, to deepen
knowledge of microbial taxonomy.
Section 2: Exam Questions and Answers
Format: Multiple-choice questions
• Four answer choices per question (A–D)
• Correct answer highlighted
• Includes clarifying notes where applicable
1. What is the defining feature of viruses?
(a) Cell wall
(b) Acellular structure
(c) Ribosomes
(d) Mitochondria
Acellular structure
Note: Viruses lack cellular organization.
2. Which component is found in all viruses?
(a) DNA
(b) RNA
(c) Protein coat
(d) Lipid envelope
Protein coat
Note: Capsid protects the genetic material.
3. What is the function of the viral envelope?
(a) DNA storage
(b) Host cell attachment
, (c) Energy production
(d) Protein synthesis
Host cell attachment
Note: Derived from host membranes.
4. Which virus has a single-stranded RNA genome?
(a) HIV
(b) Herpes simplex
(c) Adenovirus
(d) Hepatitis B
HIV
Note: Retroviruses use RNA.
5. What is the lytic cycle?
(a) Integration into host genome
(b) Immediate viral replication
(c) Latent phase
(d) Host cell repair
Immediate viral replication
Note: Leads to host cell lysis.
6. Which cycle integrates viral DNA into the host?
(a) Lytic
(b) Lysogenic
(c) Latenic
(d) Productive
Lysogenic
Note: Provirus stage.
7. What is a bacteriophage?
(a) Fungal pathogen
(b) Virus infecting bacteria
(c) Protozoan parasite
(d) Helminth
Virus infecting bacteria
Note: Attacks bacterial cells.
8. Which virus causes AIDS?
(a) Influenza
