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Paul [167]
3 years ago
10

What are the similarities and differences between diffusion and active transport?

Biology
1 answer:
Shalnov [3]3 years ago
7 0
Both use ion channels to move ions across the cell membrane, in or out of the cell. Differences: Passive Transport (or Diffusion) moves ions from high concentration to low, using no metabolic energy. Active Transport moves ions from low concentration to high, using metabolic energy in the form of ATP.
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Read 2 more answers
Which of the following describes the difference between nitrogen-14 and nitrogen-15? ( point)
AveGali [126]

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D. Nitrogen-14 has 7 electrons, 7 protons, 7 neutrons nitrogen-15 has 7 electrons, 7 protons, and 8 neutrons

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In an atom, number of electrons is equal to the number of protons.  And the number of neutrons is equal to the difference between the mass number of the atom and the atomic number. For Nitrogen 14, electron is 7, proton is also 7 as number  of electrons and number of protons are equal. So, the neutron will be 14-7= 7. For Nitrogen 15, electron number is 7 so proton number will be also 7. Neutron number for nitrogen 15 will be 15-7= 8. That's why the answer is option number 4.

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