Questions & Answers 100% Verified
3 features euk/prok share Answer-cytoplasmic membrane, cytoplasm, ribosomes
obligate parasite Answer-only replicate within host cell
what made it possible to build the first tree of life? Answer-rRNA
put in order: origin of cyanobacteria, anoxygenic phototrophic bacteria, modern eukaryotes,
anoxic earth Answer-anoxygenic phototrophic bacteria, anoxic earth, origin of
cyanobacteria, modern eukaryotes
bioremediation Answer-cleaning up pollutants
who demonstrated the link between microbes and infectious disease Answer-Koch
confocal scanning laser microscopy Answer-generate 3D image - can focus on single
layers and compile them
transmission electron microscopy Answer-2D image - visualize structures at molecular
level, high mag and resolution
scanning electron microscopy Answer-3D image - coated with metal and electron beam
scans it
size range for prokaryotes Answer-.2 um to 700 um
what cells have higher S/V ratio? Answer-smaller!
, BIO 3500 Oakland University Exam One;
Questions & Answers 100% Verified
3 advantages of being a small cell Answer-greater nutrient exchange, faster growth rate,
higher mutation accum rate
what has the highest magnification: 2cm, 600um, 300um, or 20um? Answer-20um - the
magnification is increasing
morphology Answer-cell shape
cytoplasmic membrane 3 main functions Answer-selective permeability, protein anchor,
energy conservation
how are integral proteins embedded into cytoplasmic membrane? Answer-the amino
acids in the proteins are hydrophobic like the inner bilayer
is a phospholipid membrane common to all domains? Answer-no - archaea is different
phospholipid membrane components in eukaryotic and bacterial CM? Answer-ester
bonds between fatty acid and glycerol, and is a bilayer
phospholipid membrane components in archaea CM? Answer-composed of isoprene
monomers instead of fatty acids, can be bilayer or monolayer
what color is gram positive and negative? Answer-positive purple, negative pink
difference between gram pos and neg cell walls? Answer-gram pos contain 90%
peptidoglycan and techoic acids, gram neg is mostly LPS layer