BIOL460 - FINAL EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED
the pineal gland releasing melatonin into your bloodstream is an example of
_____ signaling.
endocrine
what role does the heart play in this depiction of the negative feedback loop
involving blood pressure?
effector
Parkinson's disease is difficult to treat because it results from a deficiency of
dopamine in the brain and giving an individual dopamine, unfortunately, has no
impact on the disorder. This is because dopamine cannot cross the ___ ___ ___.
blood-brain barrier
G-proteins and ___ are the two main secondary messenger molecules utilized in
the body.
cAMP
What type of muscle tissue would you expect to find associated with blood
vessels, particularly determining where blood will flow via vasodilation and
vasoconstriction?
smooth
The cell membrane is typically most permeable to ___ ions.
K
, Match the neuroglial cell to its function
produces cerebrospinal fluid - ependymal cells
removes foreign debris or degenerated material - microglia
provides myelin sheath around CNS axons - oligodendrocytes
responsible for the formation of the BBB - astrocytes
provides myelin sheath around PNS axons - schwann cells
provides neurilemma axons around PNS axons - schwann cells
releases free radicals - microglia
takes up extraneous neurotransmitters - astrocytes
takes up glucose and produces either lactic acid or lactate which will act as an energy
source for neurons - astrocytes
necessary for synapse formation, maturation, and maintenance - astrocytes
Channels present in the membranes of some cells that allow rapid movement of
water are called ___.
aquaporins
Match the different Class 1 glucose isoforms to their descriptions
found in pancreatic beta cells and hepatocytes of the liver. Deals with particularly high
rates of glucose transport - GLUT2
found in the central nervous system - GLUT1
found in the testes - GLUT14
found in adipocytes as well as skeletal muscle fibers. Can be regulated by either insulin
or aerobic exercise - GLUT4
found associated with neurons in the peripheral nervous system - GLUT3
WITH COMPLETE SOLUTIONS VERIFIED
the pineal gland releasing melatonin into your bloodstream is an example of
_____ signaling.
endocrine
what role does the heart play in this depiction of the negative feedback loop
involving blood pressure?
effector
Parkinson's disease is difficult to treat because it results from a deficiency of
dopamine in the brain and giving an individual dopamine, unfortunately, has no
impact on the disorder. This is because dopamine cannot cross the ___ ___ ___.
blood-brain barrier
G-proteins and ___ are the two main secondary messenger molecules utilized in
the body.
cAMP
What type of muscle tissue would you expect to find associated with blood
vessels, particularly determining where blood will flow via vasodilation and
vasoconstriction?
smooth
The cell membrane is typically most permeable to ___ ions.
K
, Match the neuroglial cell to its function
produces cerebrospinal fluid - ependymal cells
removes foreign debris or degenerated material - microglia
provides myelin sheath around CNS axons - oligodendrocytes
responsible for the formation of the BBB - astrocytes
provides myelin sheath around PNS axons - schwann cells
provides neurilemma axons around PNS axons - schwann cells
releases free radicals - microglia
takes up extraneous neurotransmitters - astrocytes
takes up glucose and produces either lactic acid or lactate which will act as an energy
source for neurons - astrocytes
necessary for synapse formation, maturation, and maintenance - astrocytes
Channels present in the membranes of some cells that allow rapid movement of
water are called ___.
aquaporins
Match the different Class 1 glucose isoforms to their descriptions
found in pancreatic beta cells and hepatocytes of the liver. Deals with particularly high
rates of glucose transport - GLUT2
found in the central nervous system - GLUT1
found in the testes - GLUT14
found in adipocytes as well as skeletal muscle fibers. Can be regulated by either insulin
or aerobic exercise - GLUT4
found associated with neurons in the peripheral nervous system - GLUT3
