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3 years ago

What would be the immediate consequence if a neurons sodium-potassium pump was disrupted?

Biology

1 answer:

Andrej [43]3 years ago

4 0

Answer:

Option A.

Explanation:

The sodium pump in the neuron is electrogenic,there are three Na+ from every K+ that enter the cell . If there is a blockage to all sodium pump activity in a cell, there would be an instant change in the membrane potential which will not allow the action potential to take place because a hyperpolarizing current was removed, which means that the membrane potential becomes less negative. Therefore the electrogenic contribution of the sodium pump to the membrane potential will be small which lead to small depolarization.

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A new field known as _______________ has emerged to explore the epigenetic influences of diet.

Radda [10]

Answer:

A new field known as <u>nutrigenomics</u> has emerged to explore the epigenetic influences of diet.

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3 years ago

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Which individuals in the pedigree are identified and labeled carriers for red-green color blindness? Lisa and Monica Sam, Tim, B

marishachu [46]

<h2><u>Answer:</u></h2>

Sam, Tim, Bella and Joshua on the grounds that the red in Lisa is the partial blindness and they're the main individuals with the full shading red shaded.

<h3><u> Explanation:</u></h3>

Red green visual impairment is a x connected characteristic, which implies that it is found on the X chromosome. X connected attributes are frequently latent, and this is the reason they for the most part appear in guys, for example, the instance of red green colorblindness.

A male has just a single duplicate of the X chromosome, so if a passive x connected characteristic is available, he doesn't have the alternative of the prevailing rendition of the quality to appear.

A latent X connected attribute can introduce itself in a female, yet since she has two X chromosomes, she would need two duplicates of the passive quality for it to introduce itself.

This is the reason visual impairment is less normal, yet at the same time conceivable in females. I trust this encourages you with your family.

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3 years ago

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Which equation is an expression of the second law of thermodynamics for a spontaneous process?.

leva [86]

The second law of thermodynamics states that a spontaneous process increases the entropy of the universe, S(univ) > 0. If ΔS(univ) < 0, the process is nonspontaneous, and if ΔS(univ) = 0, the system is at equilibrium

<h3>What is thermodynamics ?</h3>

The science of thermodynamics examines the connections between heat, work, temperature, and energy. The rules of thermodynamics explain how energy moves inside a system and whether or not the system is capable of performing beneficial work on its surroundings.

Energy cannot be generated or destroyed, according to Thermodynamics' First Law. The entropy of the cosmos increases for spontaneous processes, according to the second law of thermodynamics. Third Law of Thermodynamics: Entropy is zero in a flawless crystal at absolute zero Kelvin.

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2 years ago

A hairdryer uses 1500 J of electrical energy in 1 second. The hairdryer changes 1300 J of this to useful thermal energy in 1 sec

Katarina [22]

200 J of energy is wasted by the hair dryer.

Steps

The hairdryer is provided with 1500 J of electrical energy per second
Of this 1500 J, 1300 J of energy is actually used and converted to useful thermal energy per second
The remaining energy, 1500 - 1300 = 200 J is dissipated

Dissipated energy

The energy that is not efficiently transported or changed is wasted energy.
We cannot create or destroy energy.
An employable type of energy is created through transformation.
Only a portion of energy that is changed or transferred can be done so in a way that is helpful.

Thus, 200 J of energy is wasted by the hair dryer.

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2 years ago

Explain the role of a hypothesis in a scientific investigation.

k0ka [10]

Answer:

A hypothesis is a testable proposition

used to explain scientific phenomena. It

may be based on previous observations

(a sort of educated guess) or it may

simply be a hunch. Most scientific

hypotheses are combinations of

observation and intuition. The important

thing is that the hypothesis be testable.

If the hypothesis is disproved through

testing, then it is discarded and a new

hypothesis is proposed. If the hypothesis

stands up to rigorous testing, then our

faith in the hypothesis is increased.

This system of careful, rigorous, and

unbiased testing of a hypothesis is what

characterizes the scientific method.

Hope it helps!

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2 years ago