When a Few Intracellular Mediator Molecules Activate Several Enzymes, and Each

question 7

Multiple Choice

When a few intracellular mediator molecules activate several enzymes, and each of these activated enzymes activate still other enzymes, the hormone has initiated ________.

• A) a cascade effect
• B) a double loop effect
• C) a protein kinase effect
• D) a cyclic effect
• E) a negative feedback cycle

---

Definitions:

M&M Proposition II

A theory proposing that the cost of equity for a leveraged firm increases linearly with its level of debt, holding the cost of debt constant.

Cost of Equity

The return a company requires to decide if an investment meets capital return requirements and is used in calculating the weighted average cost of capital.

Debt/Equity Ratio

A financial ratio indicating the relative proportion of shareholders' equity and debt used to finance a company's assets, often used to gauge financial health and risk.

Required Rate of Return

The lowest yearly percentage gain from an investment required to attract individuals or businesses to invest in a specific security or venture.