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VLD [36.1K]
3 years ago
13

The membrane of a resting neuron is most permeable to what ions?

Biology
1 answer:
7nadin3 [17]3 years ago
7 0

Answer:

Potassium ions

Explanation:

Neurons are the cells which are involved in the transmission of the electrical impulse in the organism. The electrical impulse is generated as a result of the movement of ions across the neuron.

The neurons when are at rest still maintains the electric potential at -70 mv. This potential is due to the difference in the ions inside and outside of the neuron. The neurons contain a very high amount of potassium ions inside whereas the sodium outside.

But the potassium ions present inside the neuron continuously leaks from inside through the leak channels (high number compared to sodium channels) causing a slight electronegative charge in the neuron.  Thus, Potassium ions are correct.

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Answer:

B

Explanation:

It has membrane-bound organelles. Mitochondria and chloroplasts are structures found in the eukaryotic cells.

8 0
3 years ago
Using the following biomass data determine which groups is most likely to represent the producers in an area
Vsevolod [243]

Answer:

The correct answer would be group D- 809 kg.

It can be explained with the help of pyramid of biomass.

Pyramid of biomass represents biomass or the amount of organic or living matter present at each trophic level in an ecosystem.

The amount of organic matter is usually expressed in grams per meter square (g/m²).

There are usually four trophic levels in the pyramid of biomass: primary producers, primary consumers, secondary consumers, and tertiary consumers.

Usually, the biomass decreases as we go up the trophical levels specially in  terrestrial ecosystem. Inverted pyramid can be observed in case of aquatic ecosystem (biomass of phytoplanktons is less than that of herbivores).

Here, maximum biomass (809 kg) belongs to the group D and hence, it would belong to primary producers.

5 0
3 years ago
Which animal lacks an amnion?
deff fn [24]
Mammals do; I'm in my science class
6 0
4 years ago
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Tomtit [17]
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Read more: <span>http://www.scienceclarified.com/Al-As/Antibody-and-Antigen.html#ixzz4YlY105DD</span></span>
4 0
3 years ago
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What term is used to describe the nuclear contents during interphase
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Chromatin is the component that specifies the nuclear contents during inter-phase.

<u>EXPLANATION:</u>

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  • Chromatin is a term used to explains the components and contents of the nuclear in its inter-phase.
  • A cell grows normally and duplicates its internal structure, the DNA, during inter-phase.
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3 years ago
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