基き質しつ

noun

substrate (biochemistry)

Technical term in biochemistry for the molecule upon which an enzyme acts.

• 酵こう素そは特とく定ていの基き質しつにのみ作さ用ようする。

  Enzymes act only on specific substrates.

noun

matrix (biology); stroma

In biology, refers to the material or tissue in which more specialized structures are embedded; also used for the stroma of chloroplasts or connective tissue.

• 細さい胞ぼう外がい基き質しつは組そ織しきの構こう造ぞうを支ささえる。

  The extracellular matrix supports tissue structure.