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ASU BIO 181 EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS
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ASU BIO 181 EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS
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ASU BIO 181 EXAM 1 QUESTIONS WITHCOMPLETE SOLUTIONS
Actin5Filaments5are5present5in:5-5ans--✔✔The5cell's5cortex
Microtubules5are5present5in:5-5ans--✔✔The5cell's5interior
Cytokinesis5in5plant5and5animal5cells5takes5two5forms:5-5ans--
✔✔Animal:5Contractile5Ring5Formation
Plant:5Phragmoplast5Formation
An5important5checkpoint5regulator5is5at5the5Gap52/M-
phase5transition.5Here,5Cyclin5B5and5cdkl15activate5and5form5MPF5which5becomes5a5___
__5_____5and5causes5DNA5to5condense5into5_____.5-5ans--✔✔Histone5Kinase
Chromosomes
The5_____5begins5to5be5destroyed5at5the5Metaphase5of5the5cell5cycle5causing5the5chrom
osomes5to5begin5to5_____.5-5ans--✔✔Cyclin5B1
Decondense
The5activation5of5both5MPF5and5MAPK5result5in5_____5_____5of5the5cytoplasm5during5M-
phase.5-5ans--✔✔Settling5down
MAPK5has5two5different5functions5depending5on5where5this5Kinase5acts5in5the5_____5__
___.5If5the5Kinase5becomes5active5during5interphase,5the5cell5is5triggered5to5progress5thr
ough5the5_____5_____.5-5ans--✔✔Cell5cycle
Cell5cycle
Two5types5of5second5messengers5discussed5in5lecture5can5exist5downstream5of5a5plasm
a5membrane5receptor.5These5are5_____5and5_____.5-5ans--✔✔Cyclic5AMP
MAP5Kinase
There5are5two5basic5forms5of5cytoplasmic5signaling5(i.e5signal5transduction).5One5uses5_
____5and5the5other5uses5_____.5-5ans--✔✔Protein5Kinases
Calcium5Signal
, What5is5the5difference5between5a5single-pass5transmembrane5protein5and5a57-
pass5transmembrane5protein?5-5ans--
✔✔A5single5pass5TMP5is5a5singular5protein5that5passes5once5through5the5bilayer.5A57-
pass5protein5passes5through5the5bilayer575times,5creating5a5channel5for5ions5to5pass5thro
ugh.5A5single5pass5TMP5cannot5create5an5ion5channel.
Is5a5cancer5cell5anchorage5independent5and5immortal,5or5is5it5anchorage5dependent5and
5mortal?5Do5they5exhibit5contact5inhibition?5-5ans--
✔✔They5are5anchorage5independent5and5immortal,5and5they5do5not5exhibit5contact5inhi
bition,5because5they5continue5to5grow5despite5their5surroundings.
If5something5is5soluble5in5water,5a5hydration5forms5around5it5and5it5is5termed:5-5ans--
✔✔Hydrophilic.
What5limits5the5paramecium5from5acquiring5more5complex5functions?5-5ans--
✔✔The5paramecium5cannot5fit5any5more5biomachinery5into5its5space.
What5limits5an5individual5cell5from5becoming5more5complex?5-5ans--✔✔Division5of5labor.
T/
F:5In5your5own5multicellular5body,5different5cells5have5a5division5of5labor5between5them:5-
5ans--✔✔True.
T/F:5A5normal5cell5is5anchorage-dependent5for5growth5and5mortal:5-5ans--✔✔True.
Comparing5a5single-celled5Eukaryotic5organism5with5a5multi-
cellular5organism5such5as5yourself,5what5is5the5major5difference:5-5ans--
✔✔Division5of5labor.
T/F:5In5your5own5multicellular5body,5cells5with5different5functions5have5different5DNA:5-
5ans--✔✔False.
A5single5celled5Eukaryotic5organism:5-5ans--
✔✔Has5a5limited5number5of5biomolecular5machines
Must5find5food,5shelter,5a5mate,5and5reproduce
Must5escape5from5predators
The5paramecium5discussed5in5class5has5contained5an5organelle5called5the5contractile5va
cuole.5This5is5the5presumed5precursor5of5the:5-5ans--✔✔Kidney.
T/F:5A5cell5that5is5anchorage-dependent5for5growth5will5also5exhibit5contact5inhibition:5-
5ans--✔✔True.
In5order5to5examine5cells5that5are5smaller5than5can5be5detected5by5the5human5eye,5what5
needs5to5be5used?5-5ans--✔✔Technology.
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