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BIOD 101 Module 5 Study Guide: Cell Signaling and Apoptosis, Exams of Nutrition

Bergen Community CollegeNutrition

This study guide provides a comprehensive overview of cell signaling pathways, focusing on the mechanisms of signal transduction, receptor types, and the role of ligands in regulating cellular processes. It also explores the process of apoptosis, its significance in maintaining cellular homeostasis, and the relationship between apoptosis and cancer development. The guide includes multiple-choice questions and fill-in-the-blank exercises to reinforce understanding of key concepts.

Typology: Exams

2024/2025

Available from 02/01/2025

Nursebrahim01
Nursebrahim01 🇺🇸

485 documents

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bg1
1g/g5
BIOD 101 Module 5 Study Guide Test Questions
With Reviewed Answers Latest 2025/2026
GRADED A+ 100% COMPLETE
1.gWhichgofgthegfollowinggsignalinggtypesgisgusedgtogtransmitgligandsgtogtheir
targetgcellsgoverglonggdistances,gusinggthegcirculatorygsystemgasgagtransportgme
dium?
1. Autocrinegsignaling
2. Endocrinegsignaling
3. Directgcell-to-cellgsignaling
4. Paracrinegsignaling
5. Synapticgsignaling:gEndocrinegsignaling.
2. Explaingwhygagsteroidghormonegwouldgrequiregagcarriergproteingtogtransportgitgthr
oughgthegbloodstream.:gSteroidghormonesgareghydrophobic.gTheygwouldgrequiregagcar
riergproteingtogcarrygitgthroughgthegbloodgbecausegitgisgconsideredghydrophilic.
3. Eachgofgthegfollowinggisgtruegregardinggcellulargreceptorsgexcept:
1. Receptorsgingeachgfamilygaregclassifiedgbygtheirglocationgingthegbody.
2. Mostgreceptorsgareglocatedgongthegoutsidegofgagcell,ganchoredgingthegplasmagme
mbrane.
3. Cellgsurfacegreceptorsgcontaingangextracellulargregion,gintracellulargregion,ga
ndgaghydrophobicgregiongingthegplasmagmembrane.
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Partial preview of the text

Download BIOD 101 Module 5 Study Guide: Cell Signaling and Apoptosis and more Exams Nutrition in PDF only on Docsity!

BIOD 101 Module 5 Study Guide Test Questions

With Reviewed Answers Latest 2025/

GRADED A+ 100% COMPLETE

1.gWhichgofgthegfollowinggsignalinggtypesgisgusedgtogtransmitgligandsgtogtheir targetgcellsgoverglonggdistances,gusinggthegcirculatorygsystemgasgagtransportg me dium?

  1. Autocrinegsignaling
  2. Endocrinegsignaling
  3. Directgcell-to-cellgsignaling
  4. Paracrinegsignaling
  5. Synapticgsignaling:gEndocrinegsignaling.
  6. Explaingwhygagsteroidghormonegwouldgrequiregagcarriergproteingtogtransportgitg thr oughgthegbloodstream.:gSteroidghormonesgareghydrophobic.gTheygwouldgrequireg agcar riergproteingtogcarrygitgthroughgthegbloodgbecausegitgisgconsideredghydrophilic.
  7. Eachgofgthegfollowinggisgtruegregardinggcellulargreceptorsgexcept:
  8. Receptorsgingeachgfamilygaregclassifiedgbygtheirglocationgingthegbody.
  9. Mostgreceptorsgareglocatedgongthegoutsidegofgagcell,ganchoredgingthegplasmag me mbrane.
  10. Cellgsurfacegreceptorsgcontaingangextracellulargregion,gintracellulargregion,g a ndgaghydrophobicgregiongingthegplasmagmembrane.
  1. Intracellulargreceptorsgareglocatedgingthegcell'sgcytoplasm.:gReceptorsgingeachg fa milygaregclassifiedgbygtheirglocationgingthegbody.
  2. ListgTWOgspecificgexamplesgofgcellulargligands.:gHormones,gpeptides,gsugars,g a ndgotherghydrophobicgmolecules. Sogcalciumgandgfemalegsexghormonesgwouldgclassifygasgligands.
  3. FillgingthegBlank: Transductiongisgthegchaingof andgintracellular thatgrelaygsignalsginsidegofgagcell.:g1.g Molecules 2.gEnzymes
  1. Whichgofgthegfollowinggis/aregtruegofgRTKs?g(Selectgallgthatgapply).
  • Theygaregagfamilygofgenzyme-linkedgreceptorgmolecules.
  • Theyghavegangextracellulargregiongonly.
  • Theygtransfergagphosphateggroupgtogthegaminogacidgtyrosinegongagtargetg pr otein.
  • Nonegofgthegabovegaregtrue.:g-Theygaregagfamilygofgenzyme- linkedgreceptorsg molecules.
  • Theygtransfergagphosphateggroupgtogthegaminogacidgtyrosinegongagtargetgprotein.
  1. Explaingthegrelationshipgbetweengcancergdevelopmentgandgapoptosis.- :gCellsgthatgundergogapoptosisgtypicallyghavegsomethinggwronggwithgthem.gThisg proc essghelpsgtogmaintaingnormalgcellgfunctioninggandggrowth.gWhengcellsgresistg apopto sisgandgcontinuegtogdivide,gcancergcangoftengdevelop.
  2. Machgeachgofgthegfollowinggtermsgwithgthegcorrectgdescription.
  3. Autocrinegsignaling
  4. Endocrinegsignaling
  5. Directgcell-to-cellgsignaling
  6. Paracrinegsignaling
  7. Synapticgsignaling
  • Gapgjunctionsgaregassociatedgwithgthisgtypegofgsignaling.
  • Involvedgingthegsecretiongofggrowthgfactors.
  • Commongtogthegimmunegcells.
  • Involvedgingregulatingghomeostaticgmechanisms.
  • Neuronsgusegthisgtypegofgsignaling.:g- Autocrinegsignalingg=gCommongtogtheg immunegcells.
  • Endocrinegsignalingg=gInvolvedgingregulatingghomeostaticgmechanisms.
  • Synapticgsignalingg=gNeuronsgusegthisgtypegofgsignaling.
  1. Brieflygdescribegthegprocessgofgphosphorylation.:gPhosphorylationgisgtheg r eversiblegprocessgofgaddinggagphosphategtogonegorgmoregsitesgongagmoleculegtog activ ategitg(turngitg"on")gorginactivategitg(turngitg"off").
  2. FillgingthegBlank: Ggproteinsgsharegthegbroadgfunctiongof GTPgtogGDP.:gHydrolyzingg (breakinggdown).
  3. Whatgrolegdogligandsgplaygingthegalterationgofggenegexpression?:gLigandsg ma ygaltergthegprocessesgofgtranscriptiongand/orgtranslationgresultinggingchangesgtog geneg expression.
  4. FillgingthegBlankgingthegfollowinggparagraphgdescribinggthegsignalinggpath- g way. Signalinggbeginsgwhengangextracellular bindsgtogagreceptorgan- g choredgwithingthegplasmagmembrane.gRelaygmoleculesgandgscaffoldinggpro- g teins thegsignalgtogactivategagcellulargresponse.:g1.gLigands 2.gTransduce
  5. Onceginsidegthegintestinalgwalls,gwhatgdoesgv.gCholeragbacteriumgproduceg th atgbindgtogagGPCR,gcausinggthegtargetgcellgtogbegpermanentlygactivated?:gThe V.gChloleragbacteriumgproducesgangEXOTOXINgthatgbindsgtogthegGPCR,gpreventinggitgfro mghydrolyzinggGTPgtogGDP.
  6. Whengagsignalinggligandgbindsgtogthegextracellulargbindinggregiongofgang R TK,gwhatghappensgTHIRD?
  7. Dimerizationgofgindividualgmonomers.
  8. Inactivegrelaygproteinsgbecomegactivated.
  9. Auto-phosphorylation.:gInactivegrelaygproteingbecomegactivated. 20.gThegtargetgcellgisgconsidered:
  1. Pre-synaptic.
  2. Post-synaptic.
  3. Agsynapse.

10

  1. Theygimprovegefficiencygingthegtransduction.
  2. Theygaddgphosphatesgtogtargetgcellgreceptorgsites.:gTheygaddgphosphatesgtog tar getgcellgreceptorgsites. 25.gLigand- gatedgiongchannelsgaregthegmaingreceptorgtypegforgwhatgcellsgingtheg humangbody?: gNeurons.