BIO 242, Exam 3 and Top Hat Answers
(Latest Grade A+)
Chitin is a major component of the ____. - CORRECT ANSWERS
✔✔exoskeleton of insects
A cell with membrane-bound proteins that selectively bind a specific
hormone is called that hormone's ____. - CORRECT ANSWERS
✔✔Target Cell
Testosterone is an example of a chemical signal that affects the very
cells that synthesize it, the neighboring cells in the testis, along with
distant cells outside the gonads. Thus, testosterone is an example of
____.
I) an autocrine signal
II) a paracrine signal
III) an endocrine signal - CORRECT ANSWERS ✔✔I, II and III
What is the only type of chemical signal that does not alter the
physiology of the animal producing that signal? - CORRECT ANSWERS
✔✔pheromones
Which of the following has both endocrine and exocrine activity? -
CORRECT ANSWERS ✔✔the pancreas
The steroid hormone that coordinates molting in arthropods is ____. -
CORRECT ANSWERS ✔✔ecdysteroid
, BIO 242, Exam 3 and Top Hat Answers
(Latest Grade A+)
What would be a likely outcome of a person not consuming enough
iodine in their diet? - CORRECT ANSWERS ✔✔reduced cellular
metabolism
Fight-or-flight reactions include activation of the ____. - CORRECT
ANSWERS ✔✔adrenal medulla, leading to increased secretion of
epinephrine
The point of connection between two communicating neurons is called
the ____. - CORRECT ANSWERS ✔✔synapse
In most neurons, the concentration of _ is relatively higher outside the
cell for the resting potential. - CORRECT ANSWERS ✔✔sodium
The following steps refer to various stages in transmission at a chemical
synapse.
1.) Neurotransmitter binds with receptors associated with the
postsynaptic membrane.
2.) Calcium ions rush into neuron's cytoplasm.
3.) An action potential depolarizes the membrane of the presynaptic
axon terminal.
(Latest Grade A+)
Chitin is a major component of the ____. - CORRECT ANSWERS
✔✔exoskeleton of insects
A cell with membrane-bound proteins that selectively bind a specific
hormone is called that hormone's ____. - CORRECT ANSWERS
✔✔Target Cell
Testosterone is an example of a chemical signal that affects the very
cells that synthesize it, the neighboring cells in the testis, along with
distant cells outside the gonads. Thus, testosterone is an example of
____.
I) an autocrine signal
II) a paracrine signal
III) an endocrine signal - CORRECT ANSWERS ✔✔I, II and III
What is the only type of chemical signal that does not alter the
physiology of the animal producing that signal? - CORRECT ANSWERS
✔✔pheromones
Which of the following has both endocrine and exocrine activity? -
CORRECT ANSWERS ✔✔the pancreas
The steroid hormone that coordinates molting in arthropods is ____. -
CORRECT ANSWERS ✔✔ecdysteroid
, BIO 242, Exam 3 and Top Hat Answers
(Latest Grade A+)
What would be a likely outcome of a person not consuming enough
iodine in their diet? - CORRECT ANSWERS ✔✔reduced cellular
metabolism
Fight-or-flight reactions include activation of the ____. - CORRECT
ANSWERS ✔✔adrenal medulla, leading to increased secretion of
epinephrine
The point of connection between two communicating neurons is called
the ____. - CORRECT ANSWERS ✔✔synapse
In most neurons, the concentration of _ is relatively higher outside the
cell for the resting potential. - CORRECT ANSWERS ✔✔sodium
The following steps refer to various stages in transmission at a chemical
synapse.
1.) Neurotransmitter binds with receptors associated with the
postsynaptic membrane.
2.) Calcium ions rush into neuron's cytoplasm.
3.) An action potential depolarizes the membrane of the presynaptic
axon terminal.
