BI 234 UNIT 1 VOCAB EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
Amino Acid
20 amino acids
Building blocks of protein.
The sequence of amino acids determines everything about a protein, including its
function.
Bacteria (domain)
tiny micro organisms (plural)
bacterial
pertaining to bacteria
bacterium
Tiny micro organism ( singular)
cell membrane
While the cell membrane provides waterproofing and selective permeability
cell wall
the cell wall provides physical strength
chromosome
DNA molecules in prokaryotes.
Essential for encoding proteins
endotoxin
, toxin on outer membrane some gram-negative bacteria that is released only when the
bacteria die.
flagella
corkscrew protein body that bacteria use to push themselves through water.
Motility
bacterial movement
lipopolysaccharide
outer component of the gram-negative cell wall.
Little squiggles on outer membrane of gram negative.
peptidoglycan
gram positive = thick layer of mesh fabric on cell wall
gram negative = thin layer, protects membrane
periplasmic space / periplasm
space between cell membrane & outer membrane
plasmid
similar to chromosome. DNA molecule in prokaryotes. Not all cells has plasmids.
shorter DNA molecules. Code proteins for specific conditions
teichoic acid
large polymers only on gram positive
large squiggles on cell wall
DNA
DNA is stable = stores info long term in form of nucleotides.
stores the instructions on making proteins
COMPLETE SOLUTIONS VERIFIED
Amino Acid
20 amino acids
Building blocks of protein.
The sequence of amino acids determines everything about a protein, including its
function.
Bacteria (domain)
tiny micro organisms (plural)
bacterial
pertaining to bacteria
bacterium
Tiny micro organism ( singular)
cell membrane
While the cell membrane provides waterproofing and selective permeability
cell wall
the cell wall provides physical strength
chromosome
DNA molecules in prokaryotes.
Essential for encoding proteins
endotoxin
, toxin on outer membrane some gram-negative bacteria that is released only when the
bacteria die.
flagella
corkscrew protein body that bacteria use to push themselves through water.
Motility
bacterial movement
lipopolysaccharide
outer component of the gram-negative cell wall.
Little squiggles on outer membrane of gram negative.
peptidoglycan
gram positive = thick layer of mesh fabric on cell wall
gram negative = thin layer, protects membrane
periplasmic space / periplasm
space between cell membrane & outer membrane
plasmid
similar to chromosome. DNA molecule in prokaryotes. Not all cells has plasmids.
shorter DNA molecules. Code proteins for specific conditions
teichoic acid
large polymers only on gram positive
large squiggles on cell wall
DNA
DNA is stable = stores info long term in form of nucleotides.
stores the instructions on making proteins
