BIOL 271 Module 1 Exam Practice Questions &
Answers (Verified Update)
This comprehensive study guide covers the foundational
concepts tested on BIOL 271 Module 1: Introduction to
Microbiology, Cell Structure & Macromolecules at Portage
Learning. It includes original practice questions with detailed
rationales, organized by the core exam domains: Microscopy
History & Cell Theory, Cell Structure (Prokaryotic vs.
Eukaryotic), Macromolecule Types & Functions, and Cell
Biology Foundations.
Exam Overview & Blueprint:
Parameter Details
Exam Format Multiple-choice, true/false, fill-in-the-blank, and short-answer questions
Module 1 Introduction to Microbiology, Cell Structure & Macromolecules (Questions
Coverage question bank)
History of microbiology, cell theory, prokaryotic vs. eukaryotic cells, the fou
Core Topics
macromolecules, cellular organelles, microbial classification
Updated taxonomy, cellular structure-function relationships, macromolecu
2026 Focus
chemistry, microscopy pioneers
,Section 1: Microscopy History & Cell Theory
Q1. Who is credited with coining the term "cell" after observing
cork under a compound microscope?
A) Antonie van Leeuwenhoek
B) Robert Hooke
C) Louis Pasteur
D) Robert Koch
Answer: B
Rationale: Robert Hooke observed cork cells under a compound
microscope in 1665 and coined the term "cell" because the tiny
compartments reminded him of monastery rooms.
Q2. Who is credited with first observing living microorganisms,
which he called "animalcules," using a handcrafted single-lens
microscope in the 1670s?
A) Robert Hooke
B) Louis Pasteur
C) Antonie van Leeuwenhoek
D) Robert Koch
Answer: C
Rationale: Antonie van Leeuwenhoek was the first to observe
and describe live microorganisms, which he called
,"animalcules," using a single-lens microscope he crafted
himself.
Q3. Which scientist definitively disproved spontaneous
generation through swan-neck flask experiments?
A) Robert Koch
B) Louis Pasteur
C) Antonie van Leeuwenhoek
D) Robert Hooke
Answer: B
Rationale: Louis Pasteur's swan-neck flask experiments
demonstrated that microorganisms arise from other
microorganisms, not spontaneous generation.
Q4. Which scientist's meat and maggot experiment challenged
spontaneous generation?
A) Francesco Redi
B) Louis Pasteur
C) John Tyndall
D) Robert Koch
Answer: A
Rationale: Francesco Redi's experiment with sealed and
unsealed jars of meat showed that maggots arose from fly eggs,
not spontaneously.
Q5. What does cell theory state? (Select all that apply.)
, A) All living things are composed of cells
B) The cell is the basic unit of life
C) All cells arise from pre-existing cells
D) Cells arise spontaneously from non-living matter
E) Only eukaryotes are composed of cells
Answer: A, B, C
Rationale: Cell theory holds that all organisms are made of
cells, the cell is life's basic unit, and cells arise only from other
cells.
Q6. Which theory proposed that living organisms could arise
from nonliving matter?
A) Germ theory
B) Cell theory
C) Spontaneous generation
D) Endosymbiotic theory
Answer: C
Rationale: Spontaneous generation is the disproven idea that
living organisms can arise directly from nonliving matter.
Q7. Which theory states that specific microorganisms cause
specific diseases?
A) Spontaneous generation
B) Germ theory of disease
Answers (Verified Update)
This comprehensive study guide covers the foundational
concepts tested on BIOL 271 Module 1: Introduction to
Microbiology, Cell Structure & Macromolecules at Portage
Learning. It includes original practice questions with detailed
rationales, organized by the core exam domains: Microscopy
History & Cell Theory, Cell Structure (Prokaryotic vs.
Eukaryotic), Macromolecule Types & Functions, and Cell
Biology Foundations.
Exam Overview & Blueprint:
Parameter Details
Exam Format Multiple-choice, true/false, fill-in-the-blank, and short-answer questions
Module 1 Introduction to Microbiology, Cell Structure & Macromolecules (Questions
Coverage question bank)
History of microbiology, cell theory, prokaryotic vs. eukaryotic cells, the fou
Core Topics
macromolecules, cellular organelles, microbial classification
Updated taxonomy, cellular structure-function relationships, macromolecu
2026 Focus
chemistry, microscopy pioneers
,Section 1: Microscopy History & Cell Theory
Q1. Who is credited with coining the term "cell" after observing
cork under a compound microscope?
A) Antonie van Leeuwenhoek
B) Robert Hooke
C) Louis Pasteur
D) Robert Koch
Answer: B
Rationale: Robert Hooke observed cork cells under a compound
microscope in 1665 and coined the term "cell" because the tiny
compartments reminded him of monastery rooms.
Q2. Who is credited with first observing living microorganisms,
which he called "animalcules," using a handcrafted single-lens
microscope in the 1670s?
A) Robert Hooke
B) Louis Pasteur
C) Antonie van Leeuwenhoek
D) Robert Koch
Answer: C
Rationale: Antonie van Leeuwenhoek was the first to observe
and describe live microorganisms, which he called
,"animalcules," using a single-lens microscope he crafted
himself.
Q3. Which scientist definitively disproved spontaneous
generation through swan-neck flask experiments?
A) Robert Koch
B) Louis Pasteur
C) Antonie van Leeuwenhoek
D) Robert Hooke
Answer: B
Rationale: Louis Pasteur's swan-neck flask experiments
demonstrated that microorganisms arise from other
microorganisms, not spontaneous generation.
Q4. Which scientist's meat and maggot experiment challenged
spontaneous generation?
A) Francesco Redi
B) Louis Pasteur
C) John Tyndall
D) Robert Koch
Answer: A
Rationale: Francesco Redi's experiment with sealed and
unsealed jars of meat showed that maggots arose from fly eggs,
not spontaneously.
Q5. What does cell theory state? (Select all that apply.)
, A) All living things are composed of cells
B) The cell is the basic unit of life
C) All cells arise from pre-existing cells
D) Cells arise spontaneously from non-living matter
E) Only eukaryotes are composed of cells
Answer: A, B, C
Rationale: Cell theory holds that all organisms are made of
cells, the cell is life's basic unit, and cells arise only from other
cells.
Q6. Which theory proposed that living organisms could arise
from nonliving matter?
A) Germ theory
B) Cell theory
C) Spontaneous generation
D) Endosymbiotic theory
Answer: C
Rationale: Spontaneous generation is the disproven idea that
living organisms can arise directly from nonliving matter.
Q7. Which theory states that specific microorganisms cause
specific diseases?
A) Spontaneous generation
B) Germ theory of disease
