Bio 2100 Exam 2 Questions With Complete Solutions
3 stages of cell signaling Correct Answers reception,
transduction, response
3 types of cell surface transmembrane receptors Correct
Answers g protein coupled receptors, receptor tyrosine kinases,
ion channels
4 types of pathway signaling Correct Answers 1. pathway leads
to one response
2. pathway branches for 2 responses
3. "cross-talk" occurs between 2 pathways
4. different receptor leads to different response
adenylyl cyclase purpose Correct Answers g proteins activate it
which causes it to convert ATP to cAMP
allosteric regulation Correct Answers regulation of an enzyme
by binding an effector molecule at a site other than the enzyme's
active site
anabolic pathway Correct Answers building of molecules
(photosynthesis)
anaerobic cellular respiration Correct Answers final electron
acceptor is replaced with sulfate/nitrate
anti-bodies send self-destruction signals through which type of
signaling? Correct Answers juxtacrine and synaptic
, apoptosis Correct Answers cell suicide
autocrine signaling Correct Answers signals itself through
secretions
basic formula for cellular respiration Correct Answers
C6H12O6 + 6O2 -> 6CO2 + 6H2O + energy
basic overview of cellular respiration energy flow Correct
Answers glucose -> NADH -> electron transport chain ->
proton motive force -> ATP
beta oxidation Correct Answers breakdown of fatty acids to 2
carbon fragments that enter citric acid cycle as acetyl CoA,
NADH and FADH2 generated
Ca2+ purpose Correct Answers stored in lumen of ER, pumps
open and flood cytosol which trigger response
Ca2+ signaling pathway Correct Answers ligand binds to g
protein which leads to activation of phospholipase c -> cleaves
membrane phopholipid into DAG and IP3 -> IP3 binds to
calcium channel in ER membrane causing Ca2+ to be released
cAMP purpose Correct Answers changes shape of protein
kinase a to activate and allow cell response, deactivates by
stopping activator and allowing inhibitor to reattach
carbon fixation Correct Answers incorporating CO2 into
organic molecules at beginning of Calvin cycle
3 stages of cell signaling Correct Answers reception,
transduction, response
3 types of cell surface transmembrane receptors Correct
Answers g protein coupled receptors, receptor tyrosine kinases,
ion channels
4 types of pathway signaling Correct Answers 1. pathway leads
to one response
2. pathway branches for 2 responses
3. "cross-talk" occurs between 2 pathways
4. different receptor leads to different response
adenylyl cyclase purpose Correct Answers g proteins activate it
which causes it to convert ATP to cAMP
allosteric regulation Correct Answers regulation of an enzyme
by binding an effector molecule at a site other than the enzyme's
active site
anabolic pathway Correct Answers building of molecules
(photosynthesis)
anaerobic cellular respiration Correct Answers final electron
acceptor is replaced with sulfate/nitrate
anti-bodies send self-destruction signals through which type of
signaling? Correct Answers juxtacrine and synaptic
, apoptosis Correct Answers cell suicide
autocrine signaling Correct Answers signals itself through
secretions
basic formula for cellular respiration Correct Answers
C6H12O6 + 6O2 -> 6CO2 + 6H2O + energy
basic overview of cellular respiration energy flow Correct
Answers glucose -> NADH -> electron transport chain ->
proton motive force -> ATP
beta oxidation Correct Answers breakdown of fatty acids to 2
carbon fragments that enter citric acid cycle as acetyl CoA,
NADH and FADH2 generated
Ca2+ purpose Correct Answers stored in lumen of ER, pumps
open and flood cytosol which trigger response
Ca2+ signaling pathway Correct Answers ligand binds to g
protein which leads to activation of phospholipase c -> cleaves
membrane phopholipid into DAG and IP3 -> IP3 binds to
calcium channel in ER membrane causing Ca2+ to be released
cAMP purpose Correct Answers changes shape of protein
kinase a to activate and allow cell response, deactivates by
stopping activator and allowing inhibitor to reattach
carbon fixation Correct Answers incorporating CO2 into
organic molecules at beginning of Calvin cycle
