WorksheetsAP Bio - Unit 4 Cell Cycle and Cell Communication
Total questions: 148
Worksheet time: 4hrs 44mins
I. Response
II. Amplification
III. Reception
IV. Transduction
Which of the following represents the sequence of events in a typical signal transduction pathway?
Feedback loops are important because they allow organisms and the environment to
change based on new inputs
fall apart
change based on new outputs
maintain balance
What hormone is responsible for the "fight or flight" response?
Testosterone
Cortisol
Adrenaline
Parathyroid Hormone
Which of the following is NOT acquired
production of antibodies
helper T cell making memory cells
cytotoxic T cell killing infected body cell
creation of histamine during a splinter infection
Which cell is directly associated with cell mediated responses
macrophage
helper T cell
cytotoxic T cell
B cell
Which of the following is NOT true of autoimmune diseases
the immune system targets "self"
the immune system has been deactivated
the immune system has over active cytotoxic T cells
mutliple sclerosis is an autoimmune disease
Vaccines will trigger your body to make all of the following EXCEPT
antibodies
memory cells
white blood cells
red blood cells
What is being depicted in the image?
Amplification of the signal molecule
Enzymatic proteins inhibiting process of the signal transduction pathway
Kinase groups adding dimer groups to other enzymes
Diffusion of molecules within the cell due to the signaling molecule
Hormone regulation operates under which type of feedback mechanism?
positive feedback
negative feedback
zero feedback
Hormones are not regulated
Uncontrolled cell division which usually leads to tumors and disease is called:
Metaphase
Cytokinesis
Cancer
Diabetes
What two components make an active MPF
a growth factor and a mitotic factor
ATP synthetase and a protease
cyclin and tubulin
cyclin and a cyclin-dependent kinase
What is the main function of the endocrine system?
It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.
It creates electrical messages that are sent around the body to maintain homeostasis.
It maintains the correct level of oxygen in the body to maintain homeostasis.
It releases waste from the body to maintain homeostasis.
Endocrine glands secrete _
Hormones
Neurotransmitters
A wide range of chemical substances
Vaccinations will
give you a deadly disease
give you autism
give you memory cells
give you autoimmune diseases
Which of the following is NOT specific?
Helper T cell
Cytoxic T cell
B cell
Macrophage
Which is the most important thing used in the first line of defense?
macrophage
fever
skin
antigens
Each antibody is specifically made to attach to only one type of antigen
True
False
What type of response is this
nonspecific and humoral
nonspecific and cell mediated
specific and humoral
specific and cell mediated
Once you have Influenza A, you will never be sick from that specific pathogen again.
True
False
Which letter represents the cell surface receptor protein?
A
B
C
D
E
Which letter represents the cell membrane?
A
B
C
D
E
Which letter represents the secondary proteins?
A
B
C
D
E
Which letter represents the ligand?
A
B
C
D
E
Which letter(s) can be proteins? (multiple answers are correct)
A
B
C
D
E
How do bacteria sense local population density?
quorum sensing
bacteria sensing
signal sensing
population sensing
The nasty on your teeth in the morning is an example of what?
biofilm
saliva
dry toothpaste residue
bacterial hormomes
The final activated molecule in a signaling pathway may function as a what?
transcription factor
second messenger
kinase
phosphatase
One signal molecule can yield different results based on which receptor receives it.
true
false
What word means programmed cell death?
apoptosis
mitosis
Ced-9
bleb
Cell death is a bad thing.
true
false
Name the two main second messengers.
cAMP
GTP
Calcium ions
ligands
I. Response
II. Amplification
III. Reception
IV. Transduction
Which of the following represents the sequence of events in a typical signal transduction pathway?
What is being depicted in the image?
Amplification of the signal molecule
Enzymatic proteins inhibiting process of the signal transduction pathway
Kinase groups adding dimer groups to other enzymes
Diffusion of molecules within the cell due to the signaling molecule
Receptors for signal molecules __________.
all work via protein kinases
are never found in the nucleus of a cell
may be found embedded in the plasma membrane, or found within the cytoplasm or nucleus
all work by opening ion channels
are only found associated with the plasma membrane
An example of LOCAL cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
Name the structure labeled 'B' (see image)
Post synaptic terminal
Receptor
Ligand
Neurotransmitter
The structure labeled 'E' is called _____ and is filled with ______
Vacuole; lipids
Synapse; neurotransmitters
Membrane; lipids
Vesicle; neurotransmitters
An example of DISTANCE cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
An example of DIRECT cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
Which type of membrane protein would help intake a message from outside of the cell to inside of the cell?
Receptor Protein
Enzymatic Protein
Channel Protein
Junction Protein
ATP Synthase
Ligands are signaling molecules that bind to receptors. Which of the following statements is true of ligands?
All ligands are proteins.
Each ligand is only able to bind to one specific receptor
Ligands can bind to cell-surface receptors, but they cannot enter the cell
Ligands bond to receptor proteins and cause the protein to relay a message to intracellular proteins.
Which letter represents the cell surface receptor protein?
A
B
C
D
E
Which letter represents the cell membrane?
A
B
C
D
E
Which letter represents the secondary proteins?
A
B
C
D
E
Which letter represents the ligand?
A
B
C
D
E
Which letter(s) can be proteins? (multiple answers are correct)
A
B
C
D
E
After a ligand binds, the intracellular domain of a receptor protein changes _____, initiating transduction of the signal.
color
size
shape
Gymnema tea binds to taste receptors and blocks sugars from binding to receptors. The tea could be known as a(n) ____.
activator
inhibitor
buffer
cell
Phosphorylation __________.
always inactivates a protein
always activates a protein
can either activate or inactivate a protein
What enzyme removes a phosphate group from a molecule?
Kinase
Catalase
Phosphatase
Ligase
PG Polymerase
What does the process of phosphorylation do?
Addition of a phosphate group to a molecule.
Removal of a phosphate group to a molecule.
Addition of Non-polar elements to a phosphate group.
Removal of Hydrogen Ions from a protein.
Change in pH
B: centromere
C: chromosome
B: chromatid
C: centromere
B: centromere
C: chromatid
B: chromosome
C: chromatid
Which part of the cell cycle does NOT include a checkpoint
Synthesis
Growth one
Growth two
Mitosis
If a sample of human cheek cells was examined, the cells typically would have a chromosome number that is
haploid; 23
diploid; 23
haploid; 46
diploid; 46
Which of the following is a protein maintained at constant levels throughout the cell cycle that requires cyclin to become catalytically active?
Cdk
cyclin
protein kinase
MPF
What is the stage in the cell cycle where cells spend less than 10% of their time?
interphase
mitoisis
meiosis
prophase
The causes of cancer may include which of the following?
environmental influences
UV radiation
smoking
all of these
