Biology 109 - Final Exam Review
Questions and Answers 100% Pass
Which of the following compounds is only found in the cell walls of gram-negative
bacteria?
- peptidoglycan
- lipopolysaccharide
- protein
- chitin
- cellulose - ✔✔- lipopolysaccharide
When a non-pathogenic strain of S. pneumoniae is mixed with a heat-killed pathogenic
strain, the former is converted to the pathogenic form. The process responsible for this
conversion is termed
- conjugation
- sexual reproduction
- transformation
- translocation
- none of the above - ✔✔- transformation
poisoned by O2
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,- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- obligate anaerobe
thrive in very hot environments
- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- extreme thermophile
uses light energy to drive the synthesis of organic compounds from CO2
- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- photoautotroph
uses CO2 to oxidize H2, releasing CH4 as a waste product
- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- methanogens
Which of the following cellular components would be found in bacteria, but is generally
lacking in protists (including all protozoans)?
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,- a mitochondria
- a cell wall
- a nucleus - ✔✔- a cell wall
When sunlight is unavailable, these protists can switch from an autotrophic nutritional
mode to a heterotrophic one?
- Autotrophs
- Chemoautotrophs
- Mixotrophs
- Heterotrophs - ✔✔- Mixotrophs
A _____ is a reproductive structure of fungi that develops from a mycelium.
- Saprobe
- Fruiting body
- Chlorophyll
- Annelids - ✔✔- Fruiting body
The mutualistic relationship between plant roots and fungi of the phylum
glomeromycota:
- lichen
- ectomycorrhizae
- arbuscular mycorrhizae
- mycosis
- yeast - ✔✔- arbuscular mycorrhizae
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 3
, Which of the following is (are) unique to animals?
- cells that have mitochondria
- the structural carbohydrate, chitin
- heterotrophy
- nervous conduction and muscular movement
- both A and C - ✔✔- nervous conduction and muscular movement
An adult animal that possesses bilateral symmetry is most certainly also
- the product of metamorphosis
- highly cephalized
- a deuterostome
- a coelomate
- triploblastic - ✔✔- triploblastic
Which of the following combinations of phylum and description is incorrect?
- Platyhelminthes - segmented worms, alimentary canal, coelomate
- Nematoda - roundworms, pseudocoelomate
- Echinodermata - bilateral symmetry as a larva, coelom present
- Cnidaria - radial symmetry, polyp and medusa body forms
- Porifera - no true tissues - ✔✔- Platyhelminthes - segmented worms, alimentary canal,
coelomate
All of the following can be observed in the phylum Cnidaria except:
- a medusa stage
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 4
Questions and Answers 100% Pass
Which of the following compounds is only found in the cell walls of gram-negative
bacteria?
- peptidoglycan
- lipopolysaccharide
- protein
- chitin
- cellulose - ✔✔- lipopolysaccharide
When a non-pathogenic strain of S. pneumoniae is mixed with a heat-killed pathogenic
strain, the former is converted to the pathogenic form. The process responsible for this
conversion is termed
- conjugation
- sexual reproduction
- transformation
- translocation
- none of the above - ✔✔- transformation
poisoned by O2
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
,- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- obligate anaerobe
thrive in very hot environments
- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- extreme thermophile
uses light energy to drive the synthesis of organic compounds from CO2
- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- photoautotroph
uses CO2 to oxidize H2, releasing CH4 as a waste product
- obligate anaerobe
- extreme thermophile
- photoautotroph
- methanogens - ✔✔- methanogens
Which of the following cellular components would be found in bacteria, but is generally
lacking in protists (including all protozoans)?
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
,- a mitochondria
- a cell wall
- a nucleus - ✔✔- a cell wall
When sunlight is unavailable, these protists can switch from an autotrophic nutritional
mode to a heterotrophic one?
- Autotrophs
- Chemoautotrophs
- Mixotrophs
- Heterotrophs - ✔✔- Mixotrophs
A _____ is a reproductive structure of fungi that develops from a mycelium.
- Saprobe
- Fruiting body
- Chlorophyll
- Annelids - ✔✔- Fruiting body
The mutualistic relationship between plant roots and fungi of the phylum
glomeromycota:
- lichen
- ectomycorrhizae
- arbuscular mycorrhizae
- mycosis
- yeast - ✔✔- arbuscular mycorrhizae
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 3
, Which of the following is (are) unique to animals?
- cells that have mitochondria
- the structural carbohydrate, chitin
- heterotrophy
- nervous conduction and muscular movement
- both A and C - ✔✔- nervous conduction and muscular movement
An adult animal that possesses bilateral symmetry is most certainly also
- the product of metamorphosis
- highly cephalized
- a deuterostome
- a coelomate
- triploblastic - ✔✔- triploblastic
Which of the following combinations of phylum and description is incorrect?
- Platyhelminthes - segmented worms, alimentary canal, coelomate
- Nematoda - roundworms, pseudocoelomate
- Echinodermata - bilateral symmetry as a larva, coelom present
- Cnidaria - radial symmetry, polyp and medusa body forms
- Porifera - no true tissues - ✔✔- Platyhelminthes - segmented worms, alimentary canal,
coelomate
All of the following can be observed in the phylum Cnidaria except:
- a medusa stage
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 4
