Bisc 261 Test with Questions Solved with
100% Correct Answers
Scanning electron microscope - Answer a microscope that produces an enlarged, three-
dimensional image of an object by using a beam of electrons excited from the surface
of a specimen
Spore stain - Answer Used to see endoscopes inside bacterial cells
plasma membrane - Answer A selectively-permeable phospholipid bilayer (embedded
with proteins) forming the boundary of the cells
Pseudomurein - Answer a component of the cell wall of archaea; it is similar to
peptidoglycan in structure and function but contains different components
Lipopolysaccharide (LPS) - Answer molecule composed of lipid A and polysaccharide
found in the external membrane of Gram-negative cell walls
FtsZ - Answer a protein in bacteria and archaea that forms a ring during
septum formation in cell division
MreB - Answer -forms a coil inside rod-shaped cells in bacteria
-maintains shape by positioning peptidoglycan synthesis machinery
, chromosome - Answer gene-carrying structure found in the nucleus. Each
chromosome consists of one very long DNA molecule and associated proteins.
fluid mosaic model - Answer structural model of the plasma membrane where
proteins float and are free to move sideways within a lipid bilayer
-equal amounts of lipids and proteins
magnetosome - Answer a storage inclusion in aquatic bacteria that orient themselves
in Earth's magnetic field; MamK forms chain
teichoic acid - Answer polymer of glycerol associated with the cell wall of Gram-positive
bacteria and can be covalently linked to peptidoglycan (negatively charged)
protoplast - Answer The contents of a plant cell exclusive of the cell wall
inclusion bodies - Answer granules of storage materials (organic or inorganic) that are
stockpiled by the cell for future use; enclosed by a single-layered membrane
plasmid - Answer small, closed circular DNA located in the cytoplasm of many
bacteria; replicates independently of chromosome
cell wall - Answer A rigid structure that surrounds the cell membrane and
provides support to the cell
periplasm - Answer space located between cytoplasmic and outer membranes
capsule layer - Answer highly organized, tightly attached type of glycocalyx composed
of polysaccharides
100% Correct Answers
Scanning electron microscope - Answer a microscope that produces an enlarged, three-
dimensional image of an object by using a beam of electrons excited from the surface
of a specimen
Spore stain - Answer Used to see endoscopes inside bacterial cells
plasma membrane - Answer A selectively-permeable phospholipid bilayer (embedded
with proteins) forming the boundary of the cells
Pseudomurein - Answer a component of the cell wall of archaea; it is similar to
peptidoglycan in structure and function but contains different components
Lipopolysaccharide (LPS) - Answer molecule composed of lipid A and polysaccharide
found in the external membrane of Gram-negative cell walls
FtsZ - Answer a protein in bacteria and archaea that forms a ring during
septum formation in cell division
MreB - Answer -forms a coil inside rod-shaped cells in bacteria
-maintains shape by positioning peptidoglycan synthesis machinery
, chromosome - Answer gene-carrying structure found in the nucleus. Each
chromosome consists of one very long DNA molecule and associated proteins.
fluid mosaic model - Answer structural model of the plasma membrane where
proteins float and are free to move sideways within a lipid bilayer
-equal amounts of lipids and proteins
magnetosome - Answer a storage inclusion in aquatic bacteria that orient themselves
in Earth's magnetic field; MamK forms chain
teichoic acid - Answer polymer of glycerol associated with the cell wall of Gram-positive
bacteria and can be covalently linked to peptidoglycan (negatively charged)
protoplast - Answer The contents of a plant cell exclusive of the cell wall
inclusion bodies - Answer granules of storage materials (organic or inorganic) that are
stockpiled by the cell for future use; enclosed by a single-layered membrane
plasmid - Answer small, closed circular DNA located in the cytoplasm of many
bacteria; replicates independently of chromosome
cell wall - Answer A rigid structure that surrounds the cell membrane and
provides support to the cell
periplasm - Answer space located between cytoplasmic and outer membranes
capsule layer - Answer highly organized, tightly attached type of glycocalyx composed
of polysaccharides
