Platelets, Which Have Negatively Charged Cell Membranes, Adhere to the Positively

question 62

Multiple Choice

Platelets, which have negatively charged cell membranes, adhere to the positively charged surface of a torn blood vessel. As they do so, they release substances that attract more platelets to the damaged area and change the charge on their cell membranes to positive. More platelets adhere to the damaged area. The cycle repeats until the damaged area is sealed. What sort of feedback loop is formed, and why?

• A)This is a positive-feedback loop because the response reinforces the initial change.
• B)This is a negative-feedback loop because the response opposes the initial stimulus.
• C) This is a negative-feedback loop because having too many platelets in one area blocks blood flow.
• D) This is a positive-feedback loop because the response prevents a person from haemorrhaging to death.

---

Definitions:

Business Judgment Rule

A legal principle that protects corporate directors or officers from liability for decisions made in good faith and believed to be in the best interest of the company.

Property Taxes

Taxes assessed on real estate by local government, calculated based on the assessed value of the property.

Corporation Liability

Legal concept where a corporation, a legal entity recognized by law, can be held legally responsible for acts or omissions.

Revised Model Business Corporation Act

A set of model statutory provisions designed to guide states in the development of their corporate statutes, providing a standard for corporate governance and operations.