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Homeostasis and Biochemistry REVIEW Molecules • • • • • Starch is made from molecules of – Simple Sugars Proteins are made from molecules of – Amino Acids What metabolic Activity Builds Larger Molecules from smaller ones • Synthesis • What metabolic activity breaks down large molecules into smaller ones • Digestion (Hydrolysis) • When Carbohydrates are digested what is the end product • Simple Sugars (Glucose) • What are carbohydrates used for • Source of Energy • When Proteins are digested what is the end product • Amino Acids • What do we then do with the amino acid – • Synthesize them into our proteins • What important protein controls metabolism • Enzymes • Where did you get the amino acids to make your enzymes • The foods you eat Enzymes • • • • • • • • What is the job of Enzymes All chemical reactions (Digestion, Synthesis etc.) What are enzymes made of Proteins So what are the building blocks of enzymes Amino Acids Every enzymes acts upon only One Substance • • • • Enzymes work only in specific conditions like Temperature pH Concentration Hormones • • • • • • • • What are they Chemical Messengers Where do the messengers go to Cells What on the cells do they interact with Receptors Why are only certain cells affected by hormones Cells have specific receptors Receptors • They work according to their – • Shape • Play an important role in communication between • Cells Feedback Mechanisms • Maintain • Homeostasis • Person is outside and their body temperature decreases The person begins to shiver and blood vessels in the skin constrict Body Temperature increases • Carbohydrate