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Anni [7]
2 years ago
14

Give two reasonsthat may account for the continuous firing of a PostsynapticNeuron.

Biology
1 answer:
lyudmila [28]2 years ago
6 0

Answer:

1.Continuous diffusion of negatively charged ions into the postsynaptic neurons , <u>which  leads to continuous reversal of charges (hyperpolarization) and therefore continuous firing of action potential</u>

2. Inhibition of hydrolytic enzymes e.g (acetycholinesterase)   that  metabolize activities of  cholinergic   neurotransmitters  e,g acetycholine at post synaptic cleft. leading to firing of action potential.

Explanation:

Neuron whose dendrites  transmits action potential to the  neuromuscular junction is called presynaptic neuron. While  neuron that  transmit action potential away from the neuronal synaptic junction, or from the neuromuscular  junction to the cell body of adjacent neuron or to effectors (gland and muscles) are called  post synaptic  neuron.

The more  negatively charged ions that diffused into the post synsptic neuron, the more depolarization, and the greater the frequency of action potential produced

The inhibition of  activities of hydrolytic enzyme which metabolize cholinergic neurotransmitter leads to  continuous   excitatory activities  of cholinergic neurotransmitters   on  the receptors at the postsynaptic neuron, and the more  action potential

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The scientific study of heredity is called genetics

Hope this helps!
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2 years ago
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konstantin123 [22]

Answer:

The <u>stroma</u> within the chloroplast

<u />

Explanation:

Chloroplasts are membrane-bound organelles  in plants. They comprise many invaginations of a plasma membrane called a thykaloid membrane. This includes chlorophyll pigments in layers called granum, whereas the internal spaces of the organelle are called lumens. Fluid surrounds the granum, and forms the stroma; here, all metabolic reactions within the chloroplast occur- <u>including CO2 fixation.</u>

Photosynthesis, involves the conversion of energy from photons or light particles and water, starting in the thykaloids; here, the pigments like chlorophyll, which is essential to photosynthesis, reside.

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4 0
2 years ago
Starfish and sea lilies <br> and sand dollars are example of what
Zigmanuir [339]

Answer:

Marine life, or sea cratures, or water creatures, or water type creatures.

Explanation:

Emphasis on SEA and I know starfish are also in the SEA.

7 0
1 year ago
A science class investigated the relationship between the amount of time
zaharov [31]

Answer:

A. Based on our results, students who do 1 hour of chores per night

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who do no chores.

Explanation:

In a scientific experiment that employs the scientific method, series of steps should be followed. The steps involved in the scientific method include; making an observation/asking a question, formulating a hypothesis, testing the hypothesis, analyzing the result, drawing a conclusion etc.

From this step, we would notice that DRAWING CONCLUSION immediately follows the analysis of result, which means the conclusion is based on the result of the experiment. A conclusion in a scientific experiment should be factual and based on the measured result. It should either reject or accept the hypothesis.

The best representation of a conclusion is A. Based on our results, students who do 1 hour of chores per night have grades that are on average 0.2 points higher than students who do no chores. This statement has a conclusive content unlike other options that still seemed unlikely.

8 0
3 years ago
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White raven [17]

Answer:

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The symptom of heart attack are;

pain in the chest, neck, back or arms, fatigue, lightheadedness, abnormal heartbeat and anxiety, nausea.

Treatment ranges from surgery, medication , rehabilitation e.t.c.

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3 years ago
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