1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivolga24 [154]
3 years ago
6

A postsynaptic neuron has three presynaptic inputs - from neurons X, Y, and Z. Stimulation of neuron X causes the postsynaptic n

euron to depolarize by 0.5 mV. When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by 1 mV. When X and Z are stimulated simultaneously, however, there is no change in the membrane potential of the postsynaptic neuron. What is most likely true about presynaptic neurons Y and Z?
Biology
1 answer:
xenn [34]3 years ago
3 0

Answer:

Y is probably excitatory and Z is probably inhibitory

Explanation:

  • Two neurons communicate with each other generally by releasing neurotransmitters.
  • The neuron which releases the neurotransmitter is termed as presynaptic neuron and the neuron to which the neurotransmitter binds to exert its effects is called as postsynaptic neuron.
  • Based on the nature of the neurotransmitter released, the presynaptic neurons can either be inhibitory or excitatory in nature.
  • The change in the membrane potential of the postsynaptic neurons depends on the total sum of inputs coming from different pre synaptic neurons at a given time.
  • From the given situation, the stimulation by X alone is causing deploarization of 0.5 mV which shows that it is causing excitation, and since depolarization is increasing when X and Y are stimulaneously stimulated Y is also excitatory in nature. However the depolarisation is not occurring when X and Z are stimualted together and hence, Z is probably inhibitory in nature.
You might be interested in
The type of rock that has formed from seedements is called
shtirl [24]
Do you mean sediments???

the type of rock formed from sediments is called sedimentary rocks
7 0
3 years ago
Where are coral reefs most threatened by pollution, and what effects has pollution had so far?
NeTakaya

Answer:

In the great barrier reef

Explanation:

It has effected plants and sea creature populations because of their homes being destroyed

7 0
2 years ago
How is the small intestine adapted for the absorption of nutrients?
Gelneren [198K]
The small intestine has cilia to absorb nutrients and reabsorb water
6 0
2 years ago
Who developed the unit for measuring amplitude?
timofeeve [1]

Answer:

Nikola Tesla

Explanation:

If right could i get brainliest

3 0
3 years ago
Read 2 more answers
What does primary productivity measure?
Goshia [24]
It measures the total rate at which photosynthesis or chemosynthesis happens in a system.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Define the term active transport
    8·1 answer
  • Think about an igneous rock at the top of a mountain. If this rock went through the whole rock cycle, number the steps that woul
    13·2 answers
  • Scientists rely on models to represent concepts and processes in physical science. Which one of the following is a reason why sc
    11·2 answers
  • Which is a part of the cell theory?
    9·2 answers
  • What is the process of organisms adapting to their environments over time.
    6·2 answers
  • What is a watershed
    12·1 answer
  • What level of biological organization comes just above the tissue level (for example, what level is immediately above the tissue
    9·1 answer
  • Someone please help!!!
    6·1 answer
  • please needed as soon as possible thank you!
    12·2 answers
  • What was the dependent variable
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!