A Previously Unknown Chemical Signal Is Discovered in Mice

question 69

Multiple Choice

A previously unknown chemical signal is discovered in mice.Five observations about this signal are listed.Which observation would serve as evidence in distinguishing whether this chemical signal should be classified as a juxtacrine or a paracrine signal?

• A) The signal molecule is a protein.
• B) Cells responding to the signal have receptors specific to the signal.
• C) Cells producing the signal are not affected by the signal molecule.
• D) The signal molecule is not present in blood.
• E) The signal molecule is not present in extracellular fluid.

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Definitions:

Market Interest Rates

The prevailing rates at which borrowers can obtain loans and lenders can invest their funds in the financial markets.

Term Structure

Term Structure relates to the relationship between interest rates or bond yields and different terms or time to maturity, graphically represented as a yield curve.

Down-Sloping

Describes a trend or line on a graph that moves from a higher to a lower point, indicative of a decrease over time.

Future Inflation

The projected increase in the price level of goods and services over time, affecting the purchasing power of money.