The Slowest Step in a Reaction Mechanism Is Called the ________

question 98

Multiple Choice

The slowest step in a reaction mechanism is called the ________ step.

• A)termination
• B)elementary
• C)rate law
• D)rate-determining

---

Definitions:

Endothelium

Layer of flat cells lining blood and lymphatic vessels and the chambers of the heart.

Precapillary Sphincters

Circular muscular valves located at the entrance of capillaries, regulating blood flow into the capillary beds according to the body's needs.

Tunica Media

Middle, usually muscular, coat of an artery or another tubular structure.

Capillary Beds

Networks of capillaries, the smallest blood vessels, that facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and tissues.