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amid [387]
3 years ago
8

In a lab diagnosis, a pathologist observed a test sample from a tuberculosis patient under a high-power microscope. Which type o

f bacteria is it if rod shaped structures were observed?
Biology
1 answer:
Allushta [10]3 years ago
7 0
Mycobacterium bacteria is rod shaped. The specific species that caused TB is mycobacterium tuberculosis.
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Explanation:

92

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What was spidermans mutagen ?
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3 years ago
An action potential involves potassium ions moving ________ the cell and sodium ions moving ________ the cell.
Alecsey [184]

An action potential involves potassium ions moving <u>outside </u>the cell and sodium ions moving <u>inside </u>the cell.

<h3>how does it action potential work?</h3>

Neurons have a negative concentration gradient most of the time, meaning there are more positively charged ions outside than inside the cell. This regular state of a negative concentration gradient is called resting membrane potential. During the resting membrane potential there are:

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  • more potassium ions (K^+ ) inside than outside the neuron

The concentration of ions isn’t static though! Ions are flowing in and out of the neuron constantly as the ions try to equalize their concentrations. The cell however maintains a fairly consistent negative concentration gradient (between -40 to -90 millivolts). How?

  • The neuron cell membrane is super permeable to potassium ions, and so lots of potassium leaks out of the neuron through potassium leakage channels (holes in the cell wall).
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  • The cell wants to maintain a negative resting membrane potential, so it has a pump that pumps potassium back into the cell and pumps sodium out of the cell at the same time.

Learn more about action potential

brainly.com/question/6705448

#SPJ4

5 0
1 year ago
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