The Use of Gunpowder in Europe

question 22

Multiple Choice

The use of gunpowder in Europe

• A)began as an import from China.
• B)was initially concentrated on breaking down fortifications.
• C)became more common with the development of handheld firearms.
• D)became increasingly sophisticated due to frequent and protracted wars.
• E)all of the above

---

Definitions:

Rough Endoplasmic Reticulum

A region of the endoplasmic reticulum associated with ribosomes, involved in the synthesis and processing of proteins.

Ribosomes

Cellular structures where protein synthesis occurs, reading mRNA and assembling amino acids into proteins according to the genetic instructions.

Microfilaments

Microfilaments are fine, thread-like protein fibers, composed largely of actin, that are a part of the cytoskeleton in eukaryotic cells, involved in cell movement and shape.

Linker Proteins

Proteins that function to connect the cytoskeleton of a cell to other cell components or to other cells, playing key roles in cell structure and movement.