Many Plants Wind Up with a Na⁺concentration That Is Considerably

question 3

Multiple Choice

Many plants wind up with a Na⁺concentration that is considerably lower than that of the surrounding soil. Which of these plays a key role in allowing for such a difference to exist?

• A) water potential
• B) aquaporins
• C) root cap
• D) endodermis
• E) tonoplast

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Definitions:

Supply Curve

A graphical representation showing the relationship between the price of a good and the amount of it that suppliers are willing to produce.

Actual Price

The price at which goods or services are sold in the market, as opposed to theoretical or listed prices.

Supply-Side Market Failure

A situation where the production of a good or service does not take into account the full cost of its impact, leading to overproduction or underproduction.

Transcontinental Railway

A railroad system that crosses an entire continent, connecting distant locations and facilitating transportation and trade.