BACTERIAL CELL STRUCTURE AND
METABOLISM EXAM QUESTIONS WITH
100% CORRECT ANSWERS { GRADED
A+}
Bacteria -✔✔ prokaryotic microorganisms that are pathogenic to
humans of size which ranges from 0.1-10 microns
Bacterial Classification -✔✔ bacterial organisms can be classofied by
gram-staining characteristics, shape and cell arrangements, morphology
and growth characteristics, metabolic activities, taxonomic classification
or ribotyping
DNA in Prokaryotes vs Eukaryotes -✔✔ prokaryotes have no
membrane with an absent nucleolus, and DNA exists as a singular,
,circular, and haploid, with extrachromosomal plasmids (often);
eukaryotes have membrane-bound paired, linear, and diploid
chromosomes with a present nucleolus, and extrachromosomal DNA in
organelles
Cytoplasmic Membrane in Prokaryotes vs Eukaryotes -✔✔ in
prokaryotes functions for respiration enzymes, enzyme secretion,
phospholipid and DNA synthesis and compartmentalization and and do
not have sterols present except for in mycoplasmas; in eukaryotes
functions as a semipermeable layer and usually have sterols present
Cell Wall in Prokaryotes vs Eukaryotes -✔✔ a rigid layer of
peptidoglycan, though is absent in mycoplasmas; eukaryotes have no
peptidoglycan in their cell walls and rather have cellulose or quitin
Organelles in Prokaryotes vs Eukaryotes -✔✔ prokaryotes only have
ribosomes; eukaryotes have mitochondria, chloroplasts, golgi and ER
Ribosomes in Prokaryotes vs Eukaryotes -✔✔ prokaryotes have 70S
ribosomes in cytoplasm which exists with the genetic material so
, transcription and translation can occur simultaneously; eukaryotes have
80S ribosomes in cytoplasm and 70S ribosome in mitochondria
Reproduction in Prokaryotes vs Eukaryotes -✔✔ prokaryotes reproduce
asexually via binary fission; eukaryotes reproduce sexually and
asexually
Site of Cellular Respiration in Prokaryotes vs Eukaryotes -✔✔ cellular
respiration occurs at the cytoplasmic membrane in prokaryotes; cellular
respiration occurs in the mitochondria in eukaryotes
Locomotion in Prokaryotes vs Eukaryotes -✔✔ prokaryotes have
rotating flagella which typically move randomly and spin
counterclockwise to glide forward; eukaryotes have undulating flagella
and cili which result in ameboid movement
Bacterial Shapes and Arrangements -✔✔ cocci bacteria are spherical
and form groups; bacilli bacteria are rod-shaped; other shapes of bacteria
include vibrios (curved), spirilla and spirochaetes (spial bacteria)
METABOLISM EXAM QUESTIONS WITH
100% CORRECT ANSWERS { GRADED
A+}
Bacteria -✔✔ prokaryotic microorganisms that are pathogenic to
humans of size which ranges from 0.1-10 microns
Bacterial Classification -✔✔ bacterial organisms can be classofied by
gram-staining characteristics, shape and cell arrangements, morphology
and growth characteristics, metabolic activities, taxonomic classification
or ribotyping
DNA in Prokaryotes vs Eukaryotes -✔✔ prokaryotes have no
membrane with an absent nucleolus, and DNA exists as a singular,
,circular, and haploid, with extrachromosomal plasmids (often);
eukaryotes have membrane-bound paired, linear, and diploid
chromosomes with a present nucleolus, and extrachromosomal DNA in
organelles
Cytoplasmic Membrane in Prokaryotes vs Eukaryotes -✔✔ in
prokaryotes functions for respiration enzymes, enzyme secretion,
phospholipid and DNA synthesis and compartmentalization and and do
not have sterols present except for in mycoplasmas; in eukaryotes
functions as a semipermeable layer and usually have sterols present
Cell Wall in Prokaryotes vs Eukaryotes -✔✔ a rigid layer of
peptidoglycan, though is absent in mycoplasmas; eukaryotes have no
peptidoglycan in their cell walls and rather have cellulose or quitin
Organelles in Prokaryotes vs Eukaryotes -✔✔ prokaryotes only have
ribosomes; eukaryotes have mitochondria, chloroplasts, golgi and ER
Ribosomes in Prokaryotes vs Eukaryotes -✔✔ prokaryotes have 70S
ribosomes in cytoplasm which exists with the genetic material so
, transcription and translation can occur simultaneously; eukaryotes have
80S ribosomes in cytoplasm and 70S ribosome in mitochondria
Reproduction in Prokaryotes vs Eukaryotes -✔✔ prokaryotes reproduce
asexually via binary fission; eukaryotes reproduce sexually and
asexually
Site of Cellular Respiration in Prokaryotes vs Eukaryotes -✔✔ cellular
respiration occurs at the cytoplasmic membrane in prokaryotes; cellular
respiration occurs in the mitochondria in eukaryotes
Locomotion in Prokaryotes vs Eukaryotes -✔✔ prokaryotes have
rotating flagella which typically move randomly and spin
counterclockwise to glide forward; eukaryotes have undulating flagella
and cili which result in ameboid movement
Bacterial Shapes and Arrangements -✔✔ cocci bacteria are spherical
and form groups; bacilli bacteria are rod-shaped; other shapes of bacteria
include vibrios (curved), spirilla and spirochaetes (spial bacteria)
