PORTAGE LEARNING BIO 101
MODULE 5 REAL EXAM 220
QUESTIONS WITH VERIFIED
SOLUTIONS GUARANTEED PASS
BRAND NEW!!
"How do intracellular signaling molecules get from one cell to another? - CORRECT ANSWER=>
Via gap junctions"
"What does intracellular mean? - CORRECT ANSWER=> Within cells"
"What are gap junctions - CORRECT ANSWER=> Tiny channels between cells"
"What is a common intracellular molecule? - CORRECT ANSWER=> Calcium ions"
"What is another type of type of direct cell to cell recognition signaling? - CORRECT ANSWER=>
Cell to cell recognition"
"What happens during cell to cell signaling - CORRECT ANSWER=> Cells come in direct contact
with each other for communication without the need of gap junctions"
"Which type of cell-to-cell signaling is important for the regulation of the immune system? -
CORRECT ANSWER=> Cell to cell recognition"
"What are the 3 steps for when a cell receives an incoming message? - CORRECT ANSWER=>
Reception
Transduction
Response"
1|Page
,"What occurs in reception? - CORRECT ANSWER=> Signal molecule attaches to the intracellular
receptor. This causes change inside the cell."
"Receptors are usually __________ in the cell membrane - CORRECT ANSWER=> anchored"
"What occurs in transduction? - CORRECT ANSWER=> After the intracellular step a series of steps
will occur in the cell"
"Does transduction occur in a single step or a series of steps? - CORRECT ANSWER=> Both but
mostly a series a step"
"What is a series of sequential steps in transduction known as? - CORRECT ANSWER=> Signal
transduction pathway"
"When several molecules are involved in a pathway, what are the molecules called? - CORRECT
ANSWER=> Relay molecules"
"When is a response triggered within a target cell? - CORRECT ANSWER=> When the signal has
been successfully transduced"
"What are examples of responses? - CORRECT ANSWER=> Activation of genes in the nucleus
Changes to the cytoskeleton
Release of vesicles containing hormones
Apoptosis"
"Are most receptors located inside or outside the cell? - CORRECT ANSWER=> Outside"
"What are receptors anchored in? - CORRECT ANSWER=> Plasma membrane"
"Name 3 types of receptors anchored in the plasma membrane? - CORRECT ANSWER=> G protein
coupled receptors (GPCRs)
Receptor Tyrosine Kinases (RTKs)
2|Page
, Ligand gated ion channels"
"How many regions do cell surface receptors have? - CORRECT ANSWER=> 3"
"What are the 3 regions of cell surface receptors? - CORRECT ANSWER=> Extracellular region
Hydrophobic region
Intracellular region"
"What is the purpose of the extracellular region of cell surface receptors? - CORRECT ANSWER=>
to bind ligands"
"Where is the hydrophobic region of the cell surface receptors located in? - CORRECT ANSWER=>
Plasma Membrane"
"What are the 3 characteristic of molecules that bind to extracellular signaling receptors? -
CORRECT ANSWER=> Large
Hydrophilic ligand
Does not need to cross plasma membrane to start transduction process"
"Intracellular receptors are located where? - CORRECT ANSWER=> Cytoplasm or Nucleus"
"How are receptors in each family classified ? - CORRECT ANSWER=> by structural and functional
similarities"
"Do receptors in the GPCR have the same configuration? - CORRECT ANSWER=> Yes"
"How many times are the GPCRs threaded through the plasma membrane? - CORRECT
ANSWER=> 7 times"
"What are the loops in GPCR modified to do? - CORRECT ANSWER=> Receive ligands on the
outside of the cell
Interact with a G protein on the cytoplasmic side of the cell"
3|Page
MODULE 5 REAL EXAM 220
QUESTIONS WITH VERIFIED
SOLUTIONS GUARANTEED PASS
BRAND NEW!!
"How do intracellular signaling molecules get from one cell to another? - CORRECT ANSWER=>
Via gap junctions"
"What does intracellular mean? - CORRECT ANSWER=> Within cells"
"What are gap junctions - CORRECT ANSWER=> Tiny channels between cells"
"What is a common intracellular molecule? - CORRECT ANSWER=> Calcium ions"
"What is another type of type of direct cell to cell recognition signaling? - CORRECT ANSWER=>
Cell to cell recognition"
"What happens during cell to cell signaling - CORRECT ANSWER=> Cells come in direct contact
with each other for communication without the need of gap junctions"
"Which type of cell-to-cell signaling is important for the regulation of the immune system? -
CORRECT ANSWER=> Cell to cell recognition"
"What are the 3 steps for when a cell receives an incoming message? - CORRECT ANSWER=>
Reception
Transduction
Response"
1|Page
,"What occurs in reception? - CORRECT ANSWER=> Signal molecule attaches to the intracellular
receptor. This causes change inside the cell."
"Receptors are usually __________ in the cell membrane - CORRECT ANSWER=> anchored"
"What occurs in transduction? - CORRECT ANSWER=> After the intracellular step a series of steps
will occur in the cell"
"Does transduction occur in a single step or a series of steps? - CORRECT ANSWER=> Both but
mostly a series a step"
"What is a series of sequential steps in transduction known as? - CORRECT ANSWER=> Signal
transduction pathway"
"When several molecules are involved in a pathway, what are the molecules called? - CORRECT
ANSWER=> Relay molecules"
"When is a response triggered within a target cell? - CORRECT ANSWER=> When the signal has
been successfully transduced"
"What are examples of responses? - CORRECT ANSWER=> Activation of genes in the nucleus
Changes to the cytoskeleton
Release of vesicles containing hormones
Apoptosis"
"Are most receptors located inside or outside the cell? - CORRECT ANSWER=> Outside"
"What are receptors anchored in? - CORRECT ANSWER=> Plasma membrane"
"Name 3 types of receptors anchored in the plasma membrane? - CORRECT ANSWER=> G protein
coupled receptors (GPCRs)
Receptor Tyrosine Kinases (RTKs)
2|Page
, Ligand gated ion channels"
"How many regions do cell surface receptors have? - CORRECT ANSWER=> 3"
"What are the 3 regions of cell surface receptors? - CORRECT ANSWER=> Extracellular region
Hydrophobic region
Intracellular region"
"What is the purpose of the extracellular region of cell surface receptors? - CORRECT ANSWER=>
to bind ligands"
"Where is the hydrophobic region of the cell surface receptors located in? - CORRECT ANSWER=>
Plasma Membrane"
"What are the 3 characteristic of molecules that bind to extracellular signaling receptors? -
CORRECT ANSWER=> Large
Hydrophilic ligand
Does not need to cross plasma membrane to start transduction process"
"Intracellular receptors are located where? - CORRECT ANSWER=> Cytoplasm or Nucleus"
"How are receptors in each family classified ? - CORRECT ANSWER=> by structural and functional
similarities"
"Do receptors in the GPCR have the same configuration? - CORRECT ANSWER=> Yes"
"How many times are the GPCRs threaded through the plasma membrane? - CORRECT
ANSWER=> 7 times"
"What are the loops in GPCR modified to do? - CORRECT ANSWER=> Receive ligands on the
outside of the cell
Interact with a G protein on the cytoplasmic side of the cell"
3|Page
