BIO 304 questions and verified
multiple choice answers 2026.
Which of the following bacterial cell structures plays an important role
in the creation of biofilms?
A. Fimbriae
B. Glycocalyces
C. Pili
D. Flagella
E. Both fimbriae and glycocalyces -✔✔Both fimbriae and glycocalyces
A bacterial cell moving toward light would be an example of
A. Positive phototaxis
B. Negative chemotaxis
C. Tumbles
D. Positive Chemotaxis
E. Negative phototaxis -✔✔Positive phototaxis
Which of the following was NOT an aspect of Pasteur's experiments to
disprove spontaneous generation?
,A. The flasks were incubated for very long periods of time.
B. He boiled the infusions to kill any microbes present.
C. The flasks were free of microbes until they were opened.
D. The necks of the flasks he used were bent into an S-shape.
E. The flasks he used were sealed with corks. -✔✔The flasks he used
were sealed with corks.
What is the correct order for the steps in the scientific method?
I. Conduct the experiment
II. Develop a hypothesis
III. Analyze results
IV. Accept or reject hypothesis -✔✔II, I, III, IV
Which of the following individuals pioneered the use of chemicals to
reduce the incidence of infections during surgery?
A. Lister
B. Nightingale
C. Snow
D. Semmelweis
E. Ehrlich -✔✔Lister
, Which of the following bacterial cell structures plays an important role
in the creation of biofilms?
A. fimbriae
B. glycocalyces
C. pili
D. flagella
E. both fimbriae and glycocalyces -✔✔both fimbriae and glycocalyces
Bacterial cell walls are resistant to drying contain ___________.
A. amino acids
B. tubulin
C. carbohydrates
D. lipopolysaccharide
E. waxes -✔✔waxes
The cytoplasmic membranes of _________ contain phospholipids and
proteins.
A. archaeal cells
B. eukaryotic cells
C. bacterial cells
D. both bacterial and eukaryotic cells
multiple choice answers 2026.
Which of the following bacterial cell structures plays an important role
in the creation of biofilms?
A. Fimbriae
B. Glycocalyces
C. Pili
D. Flagella
E. Both fimbriae and glycocalyces -✔✔Both fimbriae and glycocalyces
A bacterial cell moving toward light would be an example of
A. Positive phototaxis
B. Negative chemotaxis
C. Tumbles
D. Positive Chemotaxis
E. Negative phototaxis -✔✔Positive phototaxis
Which of the following was NOT an aspect of Pasteur's experiments to
disprove spontaneous generation?
,A. The flasks were incubated for very long periods of time.
B. He boiled the infusions to kill any microbes present.
C. The flasks were free of microbes until they were opened.
D. The necks of the flasks he used were bent into an S-shape.
E. The flasks he used were sealed with corks. -✔✔The flasks he used
were sealed with corks.
What is the correct order for the steps in the scientific method?
I. Conduct the experiment
II. Develop a hypothesis
III. Analyze results
IV. Accept or reject hypothesis -✔✔II, I, III, IV
Which of the following individuals pioneered the use of chemicals to
reduce the incidence of infections during surgery?
A. Lister
B. Nightingale
C. Snow
D. Semmelweis
E. Ehrlich -✔✔Lister
, Which of the following bacterial cell structures plays an important role
in the creation of biofilms?
A. fimbriae
B. glycocalyces
C. pili
D. flagella
E. both fimbriae and glycocalyces -✔✔both fimbriae and glycocalyces
Bacterial cell walls are resistant to drying contain ___________.
A. amino acids
B. tubulin
C. carbohydrates
D. lipopolysaccharide
E. waxes -✔✔waxes
The cytoplasmic membranes of _________ contain phospholipids and
proteins.
A. archaeal cells
B. eukaryotic cells
C. bacterial cells
D. both bacterial and eukaryotic cells
