Chemiosmosis

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Nicotinamide adenine dinucleotide

mitochondrion

Ch. 9 Notes Energy flows through systems not recyclable Matter recyclable Cellular respiration: Require ATP to be done Energy used to make ADP to ATP from glucose ATP modified RNA nucleotide A lot of APT necessary to do the smallest of tasks If ATP stopped being made we could only live 4 seconds Mitochondria make the ATP in plants and animals Chloroplasts convert sunlight into organic molecules to be used Glucose + 6 Oxygen -> 6 Carbon Dioxide + Water + ATP Oxidation and reduction has to do with 90% of ATP being produced NAD+ + H+ + 2e- = NADH Instrumental in the production of ATP More NADH the more ATP will be produced 2 different mechanisms contribute to ATP production Substrate level Phosphorylation: Chemiosmosis (Oxidative Phosphorylation):

Raven Biology Chapter 7 Notes

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cellular respiration

metabolism

Glycolysis

Citric acid cycle

biochemistry

Anaerobic respiration

Gavin Morgan 11/19/2015 Chapter 7 2-Point Notes Cells oxidize organic compounds to drive metabolism: 1. First, enzymes break down the large molecules into smaller ones, a process called digestion. Then, other enzymes dismantle these fragments a bit at a time, harvesting energy from C?H and other chemical bonds at each stage. 2. Electrons lost are accompanied by protons, so that what is really lost is a hydrogen atom, not just an electron. Cellular respiration is the complete oxidation of glucose: 1. When the acceptor is oxygen, the process is called aerobic respiration.

Campbell9EdChapter9CellRespiration

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cellular respiration

Glycolysis

Citric acid cycle

Nicotinamide adenine dinucleotide

Cellular Respiration and Fermentation Chapter 9 Overview: Life Is Work Living cells require energy from outside sources Some animals, such as the chimpanzee, obtain energy by eating plants, and some animals feed on other organisms that eat plants ? 2011 Pearson Education, Inc. Figure 9.1 Energy flows into an ecosystem as sunlight and leaves as heat Photosynthesis generates O2 and organic molecules, which are used in cellular respiration Cells use chemical energy stored in organic molecules to regenerate ATP, which powers work ? 2011 Pearson Education, Inc. Figure 9.2 Light energy ECOSYSTEM Photosynthesis in chloroplasts Cellular respiration in mitochondria CO2 ? H2O ? O2 Organic molecules ATP powers most cellular work ATP Heat energy

Campbell AP Biology Chapter 10 Photosynthesis Presentatioin

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Photosynthetic reaction centre

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Photosynthesis

Photosystem

P700

Chapter 10 Photosynthesis Overview: The Process That Feeds the Biosphere Photosynthesis is the process that converts solar energy into chemical energy Directly or indirectly, photosynthesis nourishes almost the entire living world Copyright ? 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Autotrophs sustain themselves without eating anything derived from other organisms Autotrophs are the producers of the biosphere, producing organic molecules from CO2 and other inorganic molecules Almost all plants are photoautotrophs, using the energy of sunlight to make organic molecules from H2O and CO2 Copyright ? 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Fig. 10-1

BIO CH 10

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Chloroplast

Carbon fixation

Photorespiration

RuBisCO

Cyanobacteria

Campbell's Biology, 9e (Reece et al.) Chapter 10 Photosynthesis

ap_bio_chap_7_cell_respiration.ppt

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cellular respiration

Glycolysis

Citric acid cycle

metabolism

Nicotinamide adenine dinucleotide

Beta oxidation

0 7 Cellular Respiration and Fermentation Overview: Life Is Work that Requires Energy Living cells require energy from outside sources Some animals, such as the giraffe, obtain energy by eating plants, and some animals feed on other organisms that eat plants ? 2014 Pearson Education, Inc. Energy flows into an ecosystem as sunlight and leaves as heat Photosynthesis generates O2 and organic molecules, which are used as fuel for cellular respiration Cells use chemical energy stored in organic molecules to regenerate ATP, which powers work ? 2014 Pearson Education, Inc. Animation: Carbon Cycle Carbon Cycle Figure 7.2 Light energy ECOSYSTEM Photosynthesis in chloroplasts CO2 ? H2O Cellular respiration in mitochondria Organic molecules ? O2 ATP ATP powers most cellular work Heat

Cell bio chapter 9

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metabolism

Technology

Energy flow and chemical recycling in ecosystems Metabolic pathways involved in harvesting the energy of glucose Glycolysis and cellular respiration Glycolysis and fermentation Concept 9.1 How do metabolic pathways yield energy? Redo reactions: chemical reactions that transfer electrons Oxidation: substance loses electrons Reduction: substance gains electrons Oxidation of organic molecules during cellular respiration Nicotinamide Adenine Dinucleotide- electron carrier/acceptor NADH passes electrons to the electron transport chain when O2 is present Cellular respiration occurs in the mitochondria Stages of cellular respiration Glycolysis occurs in cytoplasm Breaks down glucose with end product being pyruvic End process pyruvic goes to citric acid cycle

Cellular Respiration

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redox

Chapter 9: Cellular Respiration?Harvesting Chemical Energy Concept 9.6 (176 ? 178) is not required knowledge for the AP? exam and is omitted. Overview: Life Is Work living cells require transfusions of energy from outside sources to perform their tasks energy enters into an ecosystem as sunlight and leaves as heat Concept 9.1: Catabolic pathways yield energy by oxidizing organic fuels Catabolic Pathways and Production of ATP breakdown of organic molecules is exergonic fermentation is a partial degradation of sugars that occurs without oxygen cellular respiration is the most prevalent and efficient catabolic pathway consumes oxygen and organic molecules (i.e. glucose) yields ATP to keep working, cells must regenerate ATP Redox Reactions: Oxidation and Reduction

Photosynthesis

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Photosynthetic reaction centre

Thylakoid

Photophosphorylation

Chapter 10: Photosynthesis Concept 10.4 (195 ? 197) is not required knowledge for the AP? exam and is omitted. Overview: The Process That Feeds the Biosphere photosynthesis is the process that converts solar energy into chemical energy plants and other autotrophs are the producers of the biosphere photosynthesis occurs in plants, algae, certain other protists and some prokaryotes heterotrophs obtain their organic material from other organisms?consumers Concept 10.1: Photosynthesis converts light energy to the chemical energy of food Chloroplasts: The Sites of Photosynthesis in Plants the leaves of plants are the major sites of photosynthesis the color of the leaf is from chlorophyll, a pigment within the chloroplasts

Campbell Biology Chapter 10 Outline

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Photosynthesis

Chemistry

biochemistry