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WorksheetsCell Communication Quick 10 Qs
Total questions: 10
Worksheet time: 8mins
What are the three stages of cell signaling?
Input, output, feedback
Reception, transduction, and response
Initiation, progression, completion
Inhibition, activation, termination
What are the different types of cell signaling?
Endocrine, paracrine, and autocrine signaling
Aerobic, anaerobic, and fermentation signaling
Sensory, motor, and cognitive signaling
Visual, auditory, and olfactory signaling
What are the roles of ligands and receptors in cell communication?
Ligands repel receptors to inhibit cell communication.
Receptors bind to ligands to initiate cell communication.
Ligands and receptors have no role in cell communication.
Ligands bind to receptors to initiate cell communication.
What is the difference between autocrine and paracrine signaling?
Autocrine signaling occurs between cells in different organisms, while paracrine signaling occurs within the same organism.
Autocrine signaling and paracrine signaling are the same thing.
Autocrine signaling occurs when a cell responds to signaling molecules that it produces itself, while paracrine signaling occurs when a cell responds to signaling molecules produced by nearby cells.
Autocrine signaling occurs when a cell responds to signaling molecules produced by nearby cells, while paracrine signaling occurs when a cell responds to signaling molecules that it produces itself.
Explain the concept of signal amplification in cell communication.
Signal amplification in cell communication is the process by which a single extracellular signaling molecule can lead to a large cellular response.
Signal amplification only occurs in plant cells, not animal cells.
Signal amplification is a slow process that does not lead to a large cellular response.
Signal amplification is the reduction of cellular response to extracellular signaling molecules.
This diagram shows transduction of a signal. How is the signal being transduced to its target location in the cell?
A hormone is binding to an intracellular protein receptor
Transport vesicles are passing neurotransmitters to neighboring cells
Enzymes are passing phosphate groups down a series of proteins
cAMP is formed activating a desired response
Why do hormones not affect every cell in the body when they are released?
All cells are affected by a hormone when it is released
A cell needs a specific receptor for the hormone to be affected
A cell must have the proper ATP levels to activate a cellular response
Cells need compatible DNA for the hormone to activate transcription of a gene
cAMP is an example of a...
secondary messenger
ligand
receptor protein
target cell
Which of the following are enzymes that relay signals inside the cell by phosphorylating various molecules?
Protein Phosphatase
Protein Kinase
Receptors
Ligands
Which of the following are enzymes that shut off pathways by dephosphorylating molecules?
Protein Phosphatase
Protein Kinase
Receptors
Ligands
