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Name: Class: Date:
Chapter 01 gt
1. Dendrites gtcontain gtthe gtnuclei, gtribosomes, gtmitochondria, gtand gtother gtstructures gtfound gtin gtmost gtcells.
a. True
b. False
ANSWER: g t False
2. Neurons gtreceive gtinformation gtand gttransmit gtit gtto gtother gtcells.
a. True
b. False
ANSWER: g t True
3. Santiago gtRamón gty gtCajal gtused gtspecial gtstaining gttechniques gtto gtreveal gtthat gtthe gtbrain gtis gtcomposed gtof gtindividual gtcells.
a. True
b. False
ANSWER: g t True
4. An gtefferent gtaxon gtcarries gtinformation gtaway gtfrom gta gtstructure.
a. True
b. False
ANSWER: g t True
5. The gtgreater gtthe gtsurface gtarea gtof gta gtdendrite, gtthe gtmore gtinformation gtit gtcan gtreceive gtfrom gtother gtneurons.
a. True
b. False
ANSWER: g t True
6. Neurons gtare gtdistinguished gtfrom gtother gtcells gtby gttheir gtshape.
a. True
b. False
ANSWER: g t True
7. The gtrole gtof gtglial gtcells gtis gtto gtact gtlike gt―glue‖ gtor gtscaffolding gtto gtsupport gtthe gtneurons.
a. True
b. False
ANSWER: g t False
8. Glial gtcells gttransmit gtinformation gtacross gtlong gtdistances.
a. True
b. False
ANSWER: g t False
9. There gtare gttwo gttypes gtof gtglial gtcells gtthat gtproduce gtmyelin gtsheath. gtIn gtthe gtcentral gtnervous gtsystem, gtSchwann gtcells
fulfill gtthis gtrole gtand, gtin gtthe gtperiphery, gtoligodendrocytes gtproduce gtit.
gt
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Chapter 01 gt
a. True
b. False
ANSWER: g t False
10. The gtblood-brain gtbarrier gtis gtmade gtup gtof gtclosely gtpacked gtglial gtcells.
a. True
b. False
ANSWER: g t False
11. The gtdifference gtin gtvoltage gtin gta gtresting gtneuron gtis gtcalled gtthe gtresting gtpotential.
a. True
b. False
ANSWER: g t True
12. Increasing gtthe gtelectrical gtgradient gtfor gtpotassium gtwill gtreduce gtthe gttendency gtfor gtpotassium gtions gtto gtexit gtthe gtneuron.
a. True
b. False
ANSWER: g t True
13. At gtthe gtresting gtpotential, gtthe gtpotassium gtchannels gtare gtcompletely gtclosed gtand gtthe gtsodium gtchannels gtare gtalmost gtclosed.
a. True
b. False
ANSWER: g t False
14. Dr. gtSkinner gtis gtworking gtin gtthe gtlab gtmeasuring gtthe gtvoltage gtof gtneurons, gtand gtduring gtone gtcondition, gtshe gttried gtto
depolarize gtthe gtneurons gtfrom gt-70 gtmV gtto gt-80 gtmV.
gt
a. True
b. False
ANSWER: g t False
15. Action gtpotentials gtcan gtbe gtproduced gtin gtthe gtdendrites gtof gtsome gtneurons.
a. True
b. False
ANSWER: g t False
16. The gttwo gtbasic gtkinds gtof gtcells gtin gtthe gtnervous gtsystem gtare gt .
a. neurons gtand gtglia
b. dendrites gtand gtaxons
c. ribosomes gtand gtlysosomes
d. neurons gtand gtaxons
ANSWER: g t a
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Chapter 01 gt
17. Santiago gtRamon gty gtCajal gtdemonstrated gtthat gt .
a. at gtrest, gtthe gtneuron gthas gta gtnegative gtcharge gtinside gtits gtmembrane
b. neurons gtare gtseparate gtfrom gtone gtanother
c. neurons gtcommunicate gtat gtspecialized gtjunctions gtcalled gtsynapses
d. action gtpotentials gtfollow gtthe gtall-or-none gtlaw
ANSWER: g t b
18. Both gt and gt shared gtthe gtNobel gtPrize gtfor gtPhysiology gtor gtMedicine gtin gt1906.
a. Golgi gtand gtCajal
b. Cajal gtand gtSherrington
c. Sherrington gtand gtGolgi
d. Cajal gtand gtKalat
ANSWER: g t a
19. Dr. gtKimi gtstudies gtthe gtplasma gtmembrane gtof gtneurons. gtHe gtspecifically gtresearches gtthe gtspecialized gt that
allow gtin gtimportant gtthings gtlike gtwater, gtoxygen, gtsodium, gtand gtso gton.
gt
a. lipid gtchannels
b. protein gtchannels
c. lipid gtreceptors
d. protein gtreceptors
ANSWER: g t b
20. Neurons gtdiffer gtmost gtstrongly gtfrom gtother gtbody gtcells gtin gttheir gt .
a. temperature
b. shape
c. osmotic gtpressure
d. mitochondria
ANSWER: g t b
21. What gtdo gtneurons gthave gtthat gtother gtcells gtdo gtnot?
a. A gtplasma gtmembrane
b. Large, gtbranching gtextensions
c. Protein gtchannels
d. An gtendoplasmic gtreticulum
ANSWER: g t b
22. Dr. gtMcLaughlin’s gtlab gtstudies gthow gtnewly gtformed gtproteins gtare gtfolded gtinside gtneurons. gtThey gtwould gtbe gtmost
gt interested gtin gtstudying gtthe gt .
a. endoplasmic gtreticulum
b. mitochondria
c. ribosomes
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