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WorksheetsCell Signaling Review
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
What are the three stages to cell signaling?
a)
stimulus, transductor, and metabolic enzyme
b)
acceptance, transportation, and rejection
c)
reception, transduction, and response
d)
reception, ampliphication, and protein cascade
2.
What is the process of transduction?
a)
activate a cellular response
b)
the signal molecule entering the cell
c)
converts a signal to a form that can bring about a cellular response
d)
the creation of a G-protein
3.
True or False: Plasma membrane receptors are that accept hydrophobic and small ligands.
a)
true
b)
false
4.
True or False: G protein + GTP activates enzyme → cell response
a)
true
b)
false
5.
What phosphorylates and activates proteins?
a)
G- protein
b)
cascades
c)
active proein
d)
protein kinase
6.
True or False: cAMP is a protein kinase.
a)
true
b)
false
7.
True or False: A benign tumor is a lump of cells remain at original site
a)
true
b)
false
8.
True or False: phosphorylation cascades enhance and amplify signals
.
.
a)
true
b)
false
9.
What is a G-Protein Coupled Receptor (GPCR)?
a)
small, nonprotein molecules/ions that can relay signal inside cell
b)
enzyme that phosphorylates and activates proteins at next level
c)
Attaches (P) to tyrosine
d)
7 transmembrane segments in membrane
10.
What is a protien kinase?
a)
small, nonprotein molecules/ions that can relay signal inside cell
b)
enzyme that phosphorylates and activates proteins at next level
c)
Attaches (P) to tyrosine
d)
7 transmembrane segments in membrane
11.
What is a double chromosome?
a)
2 sister chromatids attached by a centromere
b)
phase where chromosomes become visible
c)
protein enzyme controls cell cycle
d)
proteins which attach to kinases to activate them; levels fluctuate in the cell cycle
12.
What is a cyclin?
a)
2 sister chromatids attached by a centromere
b)
phase where chromosomes become visible
c)
protein enzyme controls cell cycle
d)
proteins which attach to kinases to activate them; levels fluctuate in the cell cycle
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