→ Biology - The Digestive System → Empezar lección / Descargar tarjetas en MP3

término		definición
What is digestion? empezar lección		The process of breaking down large, insoluble food molecules into small, soluble molecules that can be absorbed into the bloodstream.
What is a biological catalyst? empezar lección		an enzyme that speeds up chemical reactions in living organisms without being used up.
What are enzymes made of? empezar lección		Proteins with a specific shape.
What is the active site? empezar lección		The part of an enzyme where the substrate fits and the reaction happens.
What is the lock and key theory? empezar lección		substrate fits into an enzyme’s active site because they have complementary shapes.
What is the mechanical digestion? empezar lección		The physical breakdown of food into smaller pieces.
What is chemical digestion? empezar lección		The breakdown of food using enzymes.
Why is increasing surface area important? empezar lección		A larger surface area allows enzymes to work faster because more particles are exposed.

Biology - The Digestive System