NATS 1610 Study Guide - Midterm Guide: Hydrolysis, Inner Membrane, Blood Sugar

• School: York University
• Department: Natural Science
• Course: NATS 1610
• Professor: Barbara Czaban

Document Summary

Cellular metabolism cells need energy for their activities. Metabolism intracellular chemical reactions: degradation, synthesis, transformation of small organic molecules. Enzymes play a vital role in metabolism: mostly proteins, catalytic, optimum ph and temperature. Coenzymes e(cid:374)z(cid:455)(cid:373)e (cid:862)helpe(cid:396)s(cid:863: molecules that move hydrogen atoms and electrons to the sites of chemical reactions in cells, e. g. , the nucleotides nad+, fad. When the product molecule is released, the enzyme goes back to its previous shape. Enzymes: are proteins speed up chemical reactions by bringing substrate molecules together to interact. Anabolic processes favour the synthesis of molecules for building up organs and tissues: often condensation/dehydration reactions (covered in more detail later) Catabolic processes favour the breakdown of complex molecules into smaller more simple ones: often hydrolysis reactions (covered in more detail later) Energy source for body is the chemical within the chemical bonds of ingested food: must be converted into a useable form of energy.