BIOL 210 EXAM 1 2026-2027 VERIFIED
QUESTIONS AND ANSWERS GRADED A+
A bacterial phylum is a group of organisms that share a common ancestor that
diverged early from other bacteria, based on
small-subunit (16S) rRNA sequences
Psychrophiles favor the cold, since their membranes are more fluid at low
temperature as a result of the high proportion of ________ present.
unsaturated fatty acids
Folded membranes in photosynthetic bacteria that are effective at increasing the
surface area of the membrane to capture sunlight for photosynthesis are called
________________.
Thylakoids
______________ facilitate cyanobacteria regulating their position in the water
column
Gas vesicles
These thin filaments aid in attachment of bacteria to a surface and can also be part
of the bacterial process of exchanging plasmids with one another
________________
, Pili
. __________ are thick-walled cells that are sometimes found in chains of
cyanobacteria. They prevent oxygen from entering the cytoplasm and damaging
oxygen sensitive enzymes that perform Nitrogen Fixation.
Heterocysts
________-branched chains increase membrane stability.
Ether
This person proposed that eukaryotic organelles like mitochondria and chloroplasts
evolved by endosymbiosis: ________________.
Margulus
This person proposed a new classification scheme using Domains instead of
Kingdoms. Named the Archaea: _________________.
Woese
In the 1600's he improved upon early versions of the compound microscope. He
also coined the term "cell" while looking at cork from an oak tree:
________________
Hooke
QUESTIONS AND ANSWERS GRADED A+
A bacterial phylum is a group of organisms that share a common ancestor that
diverged early from other bacteria, based on
small-subunit (16S) rRNA sequences
Psychrophiles favor the cold, since their membranes are more fluid at low
temperature as a result of the high proportion of ________ present.
unsaturated fatty acids
Folded membranes in photosynthetic bacteria that are effective at increasing the
surface area of the membrane to capture sunlight for photosynthesis are called
________________.
Thylakoids
______________ facilitate cyanobacteria regulating their position in the water
column
Gas vesicles
These thin filaments aid in attachment of bacteria to a surface and can also be part
of the bacterial process of exchanging plasmids with one another
________________
, Pili
. __________ are thick-walled cells that are sometimes found in chains of
cyanobacteria. They prevent oxygen from entering the cytoplasm and damaging
oxygen sensitive enzymes that perform Nitrogen Fixation.
Heterocysts
________-branched chains increase membrane stability.
Ether
This person proposed that eukaryotic organelles like mitochondria and chloroplasts
evolved by endosymbiosis: ________________.
Margulus
This person proposed a new classification scheme using Domains instead of
Kingdoms. Named the Archaea: _________________.
Woese
In the 1600's he improved upon early versions of the compound microscope. He
also coined the term "cell" while looking at cork from an oak tree:
________________
Hooke
