Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
ENERGY FOR LIFE begins as processed by Electromagnetic energy in Glycolysis (in cytosol) allows continued • 10 enzyme-catalyzed reactions SUNLIGHT 10.2 9.3 Text section where you can find more information drives when electron acceptor available, yields pyruvate for PHOTOSYNTHESIS CELLULAR RESPIRATION (in chloroplasts) (in mitochondria) 10.1 Fermentation • Regenerates NAD+ • Substrates and waste products vary among species 9.2 9.7 begins with begins with Antenna complex Pyruvate processing • Light excites electrons in pigment molecules CO2 10.2 donates energy from excited electrons to H2 O enters donates energy from excited electrons to Photosystem II Photosystem I donates • Electron transport chain ends highwith ferrodoxin 10.3 energy electrons to • “Splits” water to yield electrons • Electron transport chain pumps H+ 10.3 • • Catalyzed by pyruvate dehydrogenase 9.4 yields acetyl CoA for CO2 Citric acid cycle • 8 enzyme-catalyzed reactions • Completes oxidation of glucose 9.5 yields Chemiosmosis H+ when no electron acceptor available, donates electrons to yields FADH2 gradient drives ATP synthase NADH used in Phosphorylation of enzymes and substrates • Raises potential energy releases O2 yields ATP donates high energy electrons to NADPH 9.1 Electron transport chain O2 used in Calvin cycle CO2 fixed by rubisco to start • Series of enzyme-catalyzed reactions stored as Glycogen, starch broken down to yield Chemiosmosis 10.4 H2 O • Reactions that were endergonic with unphosphorylated enzymes/substrates become exergonic with phosphorylated enzymes/subtrates 9.1 enables yields lots of yields some 5.1 drives Energetic coupling • H+ gradient drives ATP synthase yields substrate for synthesis of GLUCOSE 5.2 • Uses energy released during redox reactions to transport H+ • Ends with final electron acceptor (usually O2) 9.6 ATP 9.1 Cells use energy to do work • pump ions • synthesize molecules • move cargo • send and receive signals ENERGY FOR LIFE begins as Electromagnetic energy in SUNLIGHT 10.2 Text section where you can find more information drives PHOTOSYNTHESIS (in chloroplasts) 10.1 begins with Antenna complex • Light excites electrons in pigment molecules 10.2 donates energy from excited electrons to H2O enters donates energy from excited electrons to Photosystem II Photosystem I donates • Electron transport chain ends highwith ferrodoxin 10.3 energy electrons to • “Splits” water to yield electrons • Electron transport chain pumps H+ 10.3 Chemiosmosis • H+ gradient drives ATP synthase releases O2 yields ATP NADPH 9.1 used in Calvin cycle CO2 fixed by rubisco to start • Series of enzyme-catalyzed reactions stored as Glycogen, starch 5.2 yields substrate for synthesis of GLUCOSE 5.1 broken down to yield 10.4 processed by Glycolysis (in cytosol) allows continued • 10 enzyme-catalyzed reactions 9.3 when electron acceptor available, yields pyruvate for Fermentation CELLULAR RESPIRATION (in mitochondria) • Regenerates NAD+ • Substrates and waste products vary among species 9.7 9.2 begins with when no electron acceptor available, donates electrons to Pyruvate processing CO2 • Catalyzed by pyruvate dehydrogenase 9.4 yields acetyl CoA for CO2 Citric acid cycle • 8 enzyme-catalyzed reactions • Completes oxidation of glucose 9.5 yields yields FADH2 NADH donates high energy electrons to Electron transport chain O2 • Uses energy released during redox reactions to transport H+ • Ends with final electron acceptor (usually O2) 9.6 Chemiosmosis • H+ gradient drives ATP synthase yields lots of yields some ATP H2O used in ATP 9.1 Phosphorylation of enzymes and substrates • Raises potential energy 9.1 drives Energetic coupling • Reactions that were endergonic with unphosphorylated enzymes/substrates become exergonic with phosphorylated enzymes/subtrates 9.1 enables Cells use energy to do work • pump ions • synthesize molecules • move cargo • send and receive signals GENETIC INFORMATION is archived in base sequences of DNA Text section where you can find more information Genotype Chromatin 4.2 is packaged with proteins to form Chromosomes 18.2 may change due to 11.1 18.2 consists of functional units called 13.2 Genes make up Alleles 15.1 have different versions called can be EXPRESSED may regulate whether genes if first TRANSCRIBED by 13.2 are COPIED 15.2 can be and can be RNA polymerase DNA polymerase 16.1 occasionally make errors, causing to form RNA Mutation to germ cells by MITOSIS MEIOSIS 11.1 12.1 14.3 starts with • Addition of poly(A) tail 2n may function directly in cell as • Addition of 5 cap ends with 16.2 to form 2n 16.2 is then TRANSLATED by affect Ribosomes 16.5 3.2 16.5 n n n Four daughter cells with half the genetic information as the parent cell. occurs during GROWTH and ASEXUAL REPRODUCTION Proteins n 2n Two daughter cells with the same genetic information as the parent cell (unless mutation has occurred). occurs during to form 2n ends with • tRNA 16.4 (transfer RNA) • rRNA (ribosomal RNA) 16.5 mRNA (messenger of RNA) SEXUAL REPRODUCTION 11.0 12.3 Low genetic diversity High genetic diversity changed by Phenotype 13.1 • Folding produce • Glycosylation • Phosphorylation • Degradation result in results in 3.4 5.3 9.1 18.4 • Independent assortment • Recombination 12.2 13.3–4 Parent cell 4.3 • Splicing includes starts with Parent cell MUTATION 15.4 may be processed by 15.4 12.1, 13.1–4 to somatic cells by by causing can be TRANSMITTED 11.1 14.3 17.1–4 18.1–4 • Breakage • Duplication or deletion due to errors in meiosis • Damage by radiation or other agents 12.4 14.5 15.4 GENETIC INFORMATION is archived in base sequences of DNA Text section where you can find more information Genotype 4.2 consists of functional units called 13.2 Genes make up 15.1 can be may regulate whether genes EXPRESSED 15.2 if first TRANSCRIBED by 17.1–4 18.1–4 RNA polymerase 16.1 to form RNA 4.3 RNA 4.3 may be processed by may function directly in cell as • Splicing • Addition of 5 cap • Addition of poly(A) tail 16.2 to form • tRNA (transfer RNA) 16.4 • rRNA (ribosomal RNA) 16.5 mRNA (messeger of RNA) 16.2 is then TRANSLATED by affect Ribosomes 16.5 to form Proteins 3.2 16.5 changed by Phenotype 13.1 produce • Folding 3.4 • Glycosylation 5.3 • Phosphorylation 9.1 • Degradation 18.4 Chromatin Chromosomes 18.2 may change due to 11.1 18.2 Alleles 13.2 • Breakage • Duplication or deletion due to errors in meiosis • Damage by radiation or other agents 12.4 14.5 15.4 can be are COPIED causing and can be can be DNA polymerase 14.3 occasionally make errors, causing MUTATION 15.4 MITOSIS 15.4 12.1, 13.1–4 to somatic cells by by Mutation TRANSMITTED 11.1 14.3 to germ cells by 11.1 MEIOSIS 12.1 includes • Independent assortment • Recombination 12.2 13.3–4 MITOSIS MEIOSIS 11.1 starts with starts with Parent cell Parent cell 2n ends with n n n n 2n Two daughter cells with the same genetic information as the parent cell (unless mutation has occurred). occurs during Four daughter cells with half the genetic information as the parent cell. occurs during GROWTH and ASEXUAL REPRODUCTION SEXUAL REPRODUCTION 11.0 result in Low genetic diversity includes • Independent assortment • Recombination 12.2 13.3–4 2n ends with 2n 12.1 12.3 results in High genetic diversity EVOLUTION is Change through time is Descent with modification is due to Changes in allele frequencies due to 25.1 does not produce due to due to due to due to Inbreeding Sexual selection NATURAL SELECTION GENETIC DRIFT MUTATION GENE FLOW • Mating among relatives • Changes genotype frequencies, but not allele frequencies • Occurs when traits used in attracting mates vary, and individuals with certain traits attract the most mates 25.6 • Occurs when traits vary, and individuals with certain traits produce the most offspring • Changes in allele frequencies due entirely to chance • Especially important in small populations • Random changes in DNA • Creates new alleles • Occurs in every individual in every generation, at low frequency • Occurs when individuals move between populations • Homogenizes allele frequencies between populations 25.6 includes Non-random mating Text section where you can find more information includes includes 24.1 24.3–5 25.2 25.3 exposes deleterious alleles to Gene flow 15.4, 25.5 produces divergence required for is the only evolutionary mechanism that can produce 25.6 produces divergence required for 25.4 due to lack of produces divergence required for SPECIATION creates new branches on Results from: Adaptation 1. Genetic isolation, followed by • Involves heritable traits only 2. Genetic divergence form smallest possible tips on 26.2–4 The TREE OF LIFE • Describes the evolutionary relationships among species 1.3, 27.1 “prune” 24.3, 24.5 forms new MASS EXTINCTIONS Species • 60% of species are lost in less than 1 million years • 5 events in the past 542 million years • Is analogous to genetic drift Evolutionarily independent units in nature, identified by: 1. Reproductive isolation, and/or 2. Phylogenetic analysis, and/or Fitness 3. Morphological differences 26.1 • Measured by number of offspring produced 27.4 may occur after with 24.3, 24.5 25.1–6 usually reduces ADAPTIVE RADIATIONS Synamorphies • Traits that are unique to a single lineage (found in some species but not others) • Arise in a common ancestor 26.1 27.1 that may be may result in Key innovations • Traits that allow species to exploit resources in a new way or use new habitats • Rapid and extensive speciation in a single lineage • Dramatic divergence in morphology or behavior (species use a wide array of resources/habitats) 27.3 27.4 EVOLUTION Change through time is is Descent with modification is due to due to Changes in allele frequencies 25.1 does not produce due to due to due to due to Inbreeding Sexual selection NATURAL SELECTION GENETIC DRIFT MUTATION GENE FLOW • Mating among relatives • Changes genotype frequencies, but not allele frequencies • Occurs when traits used in attracting mates vary, and individuals with certain traits attract the most mates • Occurs when traits vary, and individuals with certain traits produce the most offspring • Changes in allele frequencies due entirely to chance • Especially important in small populations • Random changes in DNA • Creates new alleles • Occurs in every individual in every generation, at low frequency • Occurs when individuals move between populations • Homogenizes allele frequencies between populations 25.6 25.6 includes includes Non-random mating 25.6 Text section where you can find more information includes 24.1 24.3–5 25.2 25.3 exposes deleterious alleles to is the only evolutionary mechanism that can produce Adaptation • Involves heritable traits only 24.3, 24.5 Fitness • Measured by number of offspring produced 24.3, 24.5 25.1–6 usually reduces 15.4, 25.5 Gene flow 25.4 NATURAL SELECTION GENETIC DRIFT MUTATION GENE FLOW • Occurs when traits vary, and individuals with certain traits produce the most offspring • Changes in allele frequencies due entirely to chance • Especially important in small populations • Random changes in DNA • Creates new alleles • Occurs in every individual in every generation, at low frequency • Occurs when individuals move between populations • Homogenizes allele frequencies between populations 24.1 24.3–5 25.2 Gene flow 15.4, 25.5 25.3 25.4 due to lack of produces divergence required for produces divergence required for produces divergence required for SPECIATION creates new branches on Results from: form smallest possible tips on 1. Genetic isolation, followed by 2. Genetic divergence 26.2–4 The TREE OF LIFE • Describes the evolutionary relationships among species 1.3, 27.1 “prune” forms new Species MASS EXTINCTIONS Evolutionarily independent units in nature, identified by: 1. Reproductive isolation, and/or 2. Phylogenetic analysis, and/or 3. Morphological differences 26.1 • 60% of species are lost in less than 1 million years • 5 events in the past 542 million years • Is analogous to genetic drift 27.4 may occur after with ADAPTIVE RADIATIONS Synamorphies • Traits that are unique to a single lineage (found in some species but not others) • Arise in a common ancestor 26.1 27.1 that may be may result in Key innovations • Traits that allow species to exploit resources in a new way or use new habitats • Rapid and extensive speciation in a single lineage • Dramatic divergence in morphology or behavior (species use a wide array of resources/habitats) 27.3 27.4 ECOLOGY Text chapter or section where you can find more information is the study of how Organisms interact with 51 50.54 associate with others of the same species to form Populations Abiotic environment includes includes includes • Water temperature • Soil • Chemical energy • Water flow rate • Atmosphere • Solar energy • Water depth Energy 52 CO2 50.3–4 includes • Nutrient availability and Species 53.1 Communities 53 interact in Climate 54.1 • Temperature (especially average and degree of yearly variation) • Precipitation (especially average and degree of yearly variation) and interact via Competition • Leads to possible exclusion of weaker competitors • Natural selection favors traits that reduce competition / form via Succession Nutrients • Carbon (C) • Nitrogen (N) • Pattern depends on species traits, species interactions, and history of site • Phosphorous (P) • Others 50.3–4 50.2, 54.3 54.2 53.2 53.1 is triggered by Disturbance and Consumption / (predation, parisitism, herbivory) • E.g., fire, drought; effect depends on extent and frequency flow through influence Ecosystems interact with abiotic factors to form 54 Aquatic ecosystems Terrestrial ecosystems include 50.2, 54.3 influence 50.3, 54.3 include 53.3 • Can reduce prey/host population size • Natural selection favors traits that maximize defenses dictates species that can be found in certain include • Primary producers (synthesize their own food) • Consumers (consume live organisms) • Decomposers (consume dead organisms) affects 54.1 Species richness 53.4 53.1 is a measure of and form affects Primary productivity Food webs Biodiversity Mutualism • Leads to cooccurrence of species • Natural selection favors traits that maximize benefits and minimize costs flows through / 53.1 55 54.1 54.1 ECOLOGY Text chapter or section where you can find more information is the study of how Organisms interact with 51 Abiotic environment 50, 54 associate with others of the same species to form Populations Species 52 53.1 Communities interact via Competition • Leads to possible exclusion of weaker competitors • Natural selection favors traits that reduce competition 53 interact in / 53.1 form via Succession • Pattern depends on species traits, species interactions, and history of site 53.2 is triggered by Disturbance and Consumption / (predation, Parisitism, herbivory) • Can reduce prey/host population size • Natural selection favors traits that maximize defenses • E.g., fire, drought; effect depends on extent and frequency 53.3 affects Species richness 53.4 53.1 is a measure of and Biodiversity Mutualism / • Leads to cooccurrence of species • Natural selection favors traits that maximize benefits and minimize costs 53.1 55 Ecosystems interact with abiotic factors to form 54 Abiotic environment 50.54 includes includes includes • Water temperature • Soil • Chemical energy • Water flow rate • Atmosphere • Solar energy • Water depth Energy CO2 50.3–4 includes • Nutrient availability and 54.1 Climate 54.2 • Temperature (especially average and degree of yearly variation) • Precipitation (especially average and degree of yearly variation) 50.3–4 and Nutrients • • • • Carbon (C) Nitrogen (N) Phosphorous (P) Others 50.2, 54.3 flow through dictates species that can be found in certain influence Ecosystems 54 Aquatic ecosystems include 50.2, 54.3 Terrestrial ecosystems influence 50.3, 54.3 include include • Primary producers (synthesize their own food) • Consumers (consume live organisms) • Decomposers (consume dead organisms) 54.1 Species richness 53.4 form affects Primary productivity Food webs flows through 54.1 54.1