What Do the Size and Shape of Widmanstätten Patters Indicate

question 16

Multiple Choice

What do the size and shape of Widmanstätten patters indicate?

• A) the age of the meteorite
• B) that the molten metal of the meteorite cooled very slowly
• C) the metallic content of the core of the meteorite
• D) the origination of the meteorite
• E) the number of organic compounds found within the meteorite

---

Definitions:

Sarcoplasmic Reticulum

A specialized type of smooth endoplasmic reticulum found in muscle cells, involved in the storage and release of calcium ions for muscle contraction.

Power Stroke

The phase in the cycle of a motor protein, such as myosin in muscle contraction, where force is generated and movement occurs.

Myosin Head

The part of the myosin protein that binds to actin filaments, enabling muscle contraction.

Actin Filament

Thin myofilament within the sarcomere; composed of two F actin molecules, tropomyosin, and troponin molecules.