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Dvinal [7]
3 years ago
8

Some organisms can create a sodium motive force by pumping sodium ions across a membrane using the energy of an electron transpo

rt system. In order for this sodium motive force to provide useful energy for the cell, the organism must contain
Biology
1 answer:
juin [17]3 years ago
6 0

Answer:

In order for the sodium motive force to provide useful energy for the cell the organism must contain sodium ion gradient or potential across the membrane.

Explanation:

If the concentration of sodium is high in the inter membrane space than that of matrix then a sodium gradient is generated across the inner mitochondrial membrane.

    The transport of sodium ions from inter membrane space to matrix through the sodium ion channel result in the generation of sodium motive force,that is used to provide energy to the cell.

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Answer:

  • The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
  • According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
  • After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.
8 0
3 years ago
Large-scale evolutionary trends are the result of _____.
Olegator [25]
<span>Large-scale evolutionary trends are the result of macroevolution.</span>
4 0
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marrisa and seaan are in the process of adopting a baby. One of the documents the adoptionsgency provides is a full medical hist
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Explanations:

They may also have some health conditions in common.

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D

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Great question

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3 years ago
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