receptors A)change other forms of energy into electrical energy B)may be either
ID: 3516562 • Letter: R
Question
receptors
A)change other forms of energy into electrical energy
B)may be either a specialized ending of an afferent neuron or a special cell closely associated with the peripheral ending of an afferent neuron
C)when stimulated bring about opening of Na+ channels in the afferent neuron membrane adjacent to the receptor
D)all of the above are correct
Explain why D is the correct answer.
which of the following is a metabolic effect of insulin?
a. increased glucose uptake by cells
b. increased breakdown of fats
c. decrease uptake of two amino acids by cells
d. both a and b are correct
Im leaning between either A or D; need B explained if true or not.
the neuromuscular junction
a. is the junction between a motor neuron and a skeletal muscle fiber
b. transmits an action potential between the nerve cell and muscle cell on a on-to-one basis
c. may produce either APSP or an IPSP on the motor end plate
d. both a nad b above are correct
e. all of the abovve are correct
I’m leaning towards E or D, not sure if C is fully true or not. Need it explained better.
Explanation / Answer
1)
D is the correct answers.
Receptors acts as sensors they sense the external stimuli or environment and convert it into electrical energy.
They are specialized ending of nerves.
Afferent impulses generated produce opening of Na+ channel due to release of neurotransmitters from nerve endings which generate a mechanism to open the channel.
2). Insulin by acting on its receptors on cells promote the uptake of gkucose by cell by activation GLUT receptors. It cause lipogenesis to decrease blood glucose. It increases uptake of amino acid for protein synthesis.
Hence answer is A
3) the correct anwer is E.
A and b are correct and definition of neuromuscular junction.
C is also correct as the EPSP and IPSP are generated when impulse and voltage is not strong enough.
When various EPSP and IPSP generates action potential when voltage crosses over 15mV
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