What is the result of sodium ions moving across the axon's membrane during an action potential?

1 answer:

6 0

During an action potential , the depolarization is so large that the potential difference across the cell membrane briefly reverses polarity, with the inside of the cell being positively charged. This change in the charge occurs due to the influx (inflow) of sodium ions into the cell.

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Name the tissue that water travels up from the roots to shoots in a deciduous tree.

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The tissue that water travels up from the roots to shoots in a deciduous tree is xylem.

<h3>What is xylem?</h3>

Xylem is one among the two types of transport tissue in vascular plants, the opposite being phloem.
Transport water from roots to stems and leaves is the main function of xylem, but it also transports nutrients.
The word xylem springs from the Ancient Greek word ξύλον (xylon), meaning "wood"; the best-known xylem tissue is wood, though it's found throughout a plant. The term was introduced by Carl Nägeli in 1858.
The long tracheary elements are the most distinctive xylem cells that transport water. Tracheid and vessel elements are distinguished by their shape; vessel elements are shorter, and are connected together into long tubes that are called vessels.