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Frage		Antworten
What is digestion? Lernen beginnen		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? Lernen beginnen		an enzyme that speeds up chemical reactions in living organisms without being used up.
What are enzymes made of? Lernen beginnen		Proteins with a specific shape.
What is the active site? Lernen beginnen		The part of an enzyme where the substrate fits and the reaction happens.
What is the lock and key theory? Lernen beginnen		substrate fits into an enzyme’s active site because they have complementary shapes.
What is the mechanical digestion? Lernen beginnen		The physical breakdown of food into smaller pieces.
What is chemical digestion? Lernen beginnen		The breakdown of food using enzymes.
Why is increasing surface area important? Lernen beginnen		A larger surface area allows enzymes to work faster because more particles are exposed.

Biology - The Digestive System