UMKC BIO 109 EXAM 1 STUDY GUIDE
QUESTIONS AND ANSWERS GRADED A+
2026
All of following statements concerning the bacterial cell wall are true with the exception of -
ANS is the source of endotoxins in gram positive bacteria
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 - ANS transformation
An organism that obtains energy from inorganic chemicals such as NH3 -
ANS chemoautotroph
An organism that obtains both energy and carbon as it decomposes dead organisms -
ANS chemoheterotroph
An organism that obtains energy from sunlight. - ANS photoheterotroph
Which of the following descriptions of protists is incorrect? - ANS protists are prokaryotic
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, The intermediate host in the life cycle of a blood fluke is - ANS a gastropod mollusk
The stage in the sexual life cycle of fungi that involves the fusion of haploid nuclei -
ANS karyogamy
The mutualistic relationship between plant roots and fungi of the phylum glomeromycota -
ANS arbuscular mycorrhizae
Which of the following is (are) unique to animals? - ANS nervous conduction and muscular
movement
Radial symmetry is generally associated with - ANS a sessile existence
Which of the following combinations of phylum and description is incorrect? -
ANS Echinodermata - protostome development, post anal tail
All of the following can be observed in the phylum Cnidaria except - ANS a pseudocoelom
Which of the following phyla do not have blind-sac body plans (a gastrovascular cavity with a
single opening)? - ANS Annelida (polychaete worms, earth worms, leeches)
Which of the following is not an advantage of the arthropod exoskeleton? - ANS enhances
sensory perception
Pharyngeal slits appear to have functioned first as - ANS suspension-feeding devices
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
QUESTIONS AND ANSWERS GRADED A+
2026
All of following statements concerning the bacterial cell wall are true with the exception of -
ANS is the source of endotoxins in gram positive bacteria
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 - ANS transformation
An organism that obtains energy from inorganic chemicals such as NH3 -
ANS chemoautotroph
An organism that obtains both energy and carbon as it decomposes dead organisms -
ANS chemoheterotroph
An organism that obtains energy from sunlight. - ANS photoheterotroph
Which of the following descriptions of protists is incorrect? - ANS protists are prokaryotic
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, The intermediate host in the life cycle of a blood fluke is - ANS a gastropod mollusk
The stage in the sexual life cycle of fungi that involves the fusion of haploid nuclei -
ANS karyogamy
The mutualistic relationship between plant roots and fungi of the phylum glomeromycota -
ANS arbuscular mycorrhizae
Which of the following is (are) unique to animals? - ANS nervous conduction and muscular
movement
Radial symmetry is generally associated with - ANS a sessile existence
Which of the following combinations of phylum and description is incorrect? -
ANS Echinodermata - protostome development, post anal tail
All of the following can be observed in the phylum Cnidaria except - ANS a pseudocoelom
Which of the following phyla do not have blind-sac body plans (a gastrovascular cavity with a
single opening)? - ANS Annelida (polychaete worms, earth worms, leeches)
Which of the following is not an advantage of the arthropod exoskeleton? - ANS enhances
sensory perception
Pharyngeal slits appear to have functioned first as - ANS suspension-feeding devices
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
