The Mechanism of Contraction in Smooth Muscle Is Different from Skeletal

question 45

Multiple Choice

The mechanism of contraction in smooth muscle is different from skeletal muscle in that ________.

• A) actin and myosin interact by the sliding filament mechanism
• B) the trigger for contraction is a rise in intracellular calcium
• C) the site of calcium regulation differs
• D) ATP energizes the sliding process

---

Definitions:

Habitat Loss

The process in which natural habitats are rendered unable to support the species present, leading to the displacement or extinction of its inhabitants.

Egg Collection

The practice of gathering eggs from the wild, often for scientific research, conservation, or as part of a collection hobby.

Carrying Capacity

The largest number of individuals of a species that an environment can support indefinitely, based on the availability of essential resources like food, habitat, and water.

Predation

A biological interaction where one organism, the predator, kills and eats another organism, its prey, as a means of obtaining energy.