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Cell Signaling
Quiz 2
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Q.1
The three steps of signal transduction in order are
reception, transduction, response
response, transduction, reception
reception, response, transduction
transduction, reception, response
Q.2
Which of the following cell organelle actively participates in animal apoptosis?
Nucleus
Mitochondria
Lysosomes
Vacuoles
Q.3
Apoptosis can't kill which of the following?
Cell infected with viruses
Cell with DNA damage
Cancer cells
Immune cells
Q.4
What could be the cause for a cell to undergo apoptosis?
DNA damage
Radiation
Nutrient deficiency
All of the above
Q.5
DNA sequence to which hormones of steroid hormone superfamily binds is called
HRE
CRE
SRE
GRE
Q.6
Endocrine signals are
Short distance
Only used during stressful times
Long distance
Part of the rebel alliance
Q.7
The type of receptors are:
Intracellular and Extra-cellular receptors
Mitotic and Meiotic receptors
Left side and right side receptors
Autocrine, Paracrine, and Endocrine receptors
Q.8
Ligand gated ion channels are found in:
Plant cells
Animal Cells
Plant and Animal Cells
Alien Cells
Q.9
How many stages are there to cell conversation?
4
6
3
87
Q.10
Paracrine signals affect
the cell that sent the signal
the cell that sent the signal and the surrounding cells
only the surrounding cells but not itself
no cells
Q.11
Cells can communicate by Direct Contact. Which of the following is NOT an example of direct contact?
Direct intracellular Signalling (buy cell junctions)
Contact Dependent Signaling (cell to cell recognition)
Intracellular Contact (using lysosomes)
None of the above are examples of Direct Contact
Q.12
Messenger molecules are divided into two types, which are:
Local and Long
Fast and Slow
Green and Blue
Square and Circle
Q.13
Synaptic Signaling occurs in which type of cell?
Muscle cell
Nervous System cell
White Blood Cell
Red Blood
Q.14
Auotcrine signals affect
the cell that sent the signal
the cell that sent the signal and surrounding cells
only the surrounding cells but not itself
no cells
Q.15
What does a protein kinase do?
removes phosphates
transfers phosphates from ATP to proteins
activates an enzyme
Q.16
What does a protein phosphatase do?
removes phosphates
transfers phosphates from ATP to proteins
activates an enzyme with a signal molecule
Q.17
What is a phosphorylation cascade?
travelling of hormones through the air
travelling of hormones through the blood
the removal of a phosphate
a series of molecules that get phosphorylated
Q.18
Do plant cells communicate using hormones?
yes
no
Q.19
Which of the following converts cAMP to AMP?
phosphodiesterase
protein phosphatase
GTPase
Q.20
What is a function of the second messenger IP3?
bind to and activate protein kinase A
activate transcription factors
convert ATP to cAMP
bind to and open ligand-gated channels
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