WorksheetsAP Bio Signal Transduction
Total questions: 15
Worksheet time: 15mins
What is the advantage to amplification of a signal inside of a cell?
moderates the signal so it is not to quick
stops a signal from being transducted
increases the cell response to a signal
increases the reception of signal
All mammals have a similar signaling pathway for the uptake of glucose by cells from the blood. What does this suggest about the evolutionary relatedness
Species that use the same signal pathway are probably closely related by evolution.
Species that use the same signal pathway are probably not closely related by evolution
Species that use the same signal pathway will look the same anatomically
Species that use the same signal pathway would not be in the same kingdom.
What class of enzymes removes phosphate from proteins to deactivate them?
catalases
phosphatases
kinases
amplifases
A change in the receptor can affect the responses of cell
True
False
A mutation in a relay molecule can affect the response.
True
False
Identify the type of receiver seen here.
G-protein coupled receptor
gated ion channel
RTKs
cAMP
Which kind of receptors are seen here?
G-coupled protein receptor
RTK's
Gated ion channels
What determines whether a signal molecule binds on the surface or enters the cell?
size
polarity
ability to cross the membrane
all of these
What is the name of the signaling molecule in cell communication?
ligand
receptor
operon
inhibitor
Choose the correct order of communication.
reception, response, transduction
transduction, reception, response
response, transduction, reception
reception, transduction, response
Long distance signals involving hormones are ________ signals.
paracrine
synaptic
endocrine
Adrenaline is released from your adrenal glands to affect various systems in the body. This is an example of ____ signaling.
synaptic
endocrine
paracrine
autocrine
In signal transduction, what role do second messengers play?
A) They directly bind to DNA to initiate transcription.
B) They amplify the signal from the receptor to the target molecules.
C) They degrade the signal to terminate the response.
D) They transport the signal across the cell membrane.
Which of the following is an example of a signal transduction pathway involving a G-protein coupled receptor?
A) Insulin signaling pathway
B) Vision in low light conditions
C) Muscle contraction
D) Blood clotting cascade
What is the primary function of protein kinases in signal transduction?
A) To remove phosphate groups from proteins
B) To add phosphate groups to proteins
C) To degrade proteins
D) To synthesize proteins
