According to the Sliding Filament Theory of Muscle Contraction

question 9

Multiple Choice

According to the sliding filament theory of muscle contraction,

• A)actin binds ATP and breaks it apart as actin pulls against myosin.
• B)calcium ions are released from myosin as the filaments slide by.
• C)the thick and thin filaments do not change length during this process.
• D)an accordion-like pleat is formed as the myosin and actin interact.
• E)All of the choices are correct.

---

Definitions:

Stereoscopic Vision

The ability to perceive depth and three-dimensional structure from visual information captured by both eyes.

Primates

An order of mammals that includes humans, apes, monkeys, and prosimians, characterized by large brains, forward-facing eyes, and opposable thumbs.

Homo Heidelbergensis

Early humans living from about 600,000 to 300,000 years ago; some scientists believe that fossils classified as Homo antecessor should be included in Homo heidelbergensis.

H. Antecessor

An extinct human species or subspecies from the Early Pleistocene of Europe, considered one of the early ancestors of modern humans.