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Micro Chapter 6

Exam 2

Enzymes are ____ _______? Reaction Specific
_____ are recycled Enzymes
____ ______ cause the reactions to occur by forcing substrates together & forming products Active sites
Heat is a _____ catalyst
Enzymes Biological Catalysts
Catalysts Speed up chemical reactions
___ reactions produce the energy that drives ___ reactions Catabolic Anabolic
Cells need to be ___ ___ to survive Energy Efficient
How do Cells obtain energy? Removing electrons from atoms, so these atoms are part of molecules referred to as electron carriers (A little bit at a time is better than all at once...bursts from ETC)
Biochemical Pathway Sequence of enzyme catalyzed chemical reactions
What temp & pH do enzymes work best at? 98.6 F -> body temp 7 -> neutral pH
What affects enzyme activity? temperature pH inhibitors
Enzymes lower ___ ___ Activation energy
Where is the ATP stored? in PO4 bonds
What is the goal of biochemical pathways? Energy/ATP
Redox Reactions Paired chemical reactions, always occur together
Reduction Addition of electron & uses energy
Oxidation Reduction Removal of an electron from a molecule to reduce energy
Metabolism Sum of all chemical reactions in a living organism
Catabolism Reactions in which things are broken down, yields energy as a result
Anabolism Reactions in which things are synthesized, uses energy
Anabolic Reactions Uses energy & builds things
2 Types of Fermentation Lactic Acid Alcoholic
Fermentation Slower than cellular respiration
Cellular Respiration Formula C6H12O6 + 6O2 -> 6H2O + 6H2O + 6CO2 + Energy Glucose + Oxygen -> Water + Carbon Dioxide + Energy
ATP Synthase Channel protein for hydrogen
Hydrogen Pump Pumps hydrogen across cell membrane Active transport, low -> high
How many ATP does Chemiosmosis produce? 34
What do protons do in Oxidative Phosphorylation? Chemiosmosis
What do electrons do in Oxidative Phosphorylation? ETC
What are the 2 parts of Hydrogen? Electron Proton
What is Oxidative Phosphorylation? ETC & Chemiosmosis
What goes in & is produced by the Kreb's Cycle? In: Pyruvic Acid & Acetyl CoA Out: 2 ATP, 6 NADH, 2 FADH2, 4CO2
What goes in & is produced by glycolysis? In: C6H12O6 Out: 2 ATP, 2 NADH, 2 Pyruvic Acid
Cellular Respiration 1. Glycolysis 2. Kreb's Cycle 3. Electron Transport Chain
Carbohydrate Catabolism Primary source of cellular respiration
Created by: aleahgoodson