気孔

1. Origins, structure, and basic meaning

• Structure: 気孔 is a noun read きこう, meaning a stoma, a small pore on a plant surface involved in the passage of gases and moisture.
• Basic usage: Use 葉の裏にある気孔 for its location, 顕微鏡で for the observation tool, and 模型を使って for learning with a model.
  • 葉の裏にある気孔を顕微鏡で観察した。 describes observing stomata on the underside of a leaf with a microscope; 気孔の模型を使って開閉の仕組みを学んだ。 describes using a model to learn how a stoma opens and closes.

2. Common pitfalls and similar expressions

• 葉の裏にある
  • にある locates the stoma on the underside of the leaf.
• 顕微鏡で観察する
  • で marks the microscope as the observation tool.
• 模型を使って学ぶ
  • The model is the means of learning, not an actor that explains by itself.