Which of the Following Is a Common Means by Which

question 400

Multiple Choice

Which of the following is a common means by which binding of an extracellular chemical messenger with a cell's receptor brings about a desired intracellular response

• A)opening or closing of specific channels to regulate ionic movement across the plasma membrane
• B)activation of an extracellular, second messenger system
• C)alteration of DNA structure by attaching to the nucleus
• D)combination with surface receptor

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Definitions:

Yield

The income return on an investment, such as the interest or dividends received, expressed as an annual percentage of the investment cost.

Original Maturity

The fixed term length at the issuance of a bond or other fixed-income security until it reaches its due date for the repayment of the principal.

Current Yield

Current yield is the annual income (interest or dividends) divided by the current price of the security.

Coupon Rate

The percentage of interest returned by a bond annually, measured against its face value.