Glycolysis

Rating:

No votes yet

SocialTags:

Beta oxidation

Campbell's Biology, 9e (Reece et al.) Chapter 9 Cellular Respiration and Fermentation This is one of the most challenging chapters for students to master. Many students become overwhelmed and confused by the complexity of the pathways, with the multitude of intermediate compounds, enzymes, and processes. The vast majority of the questions in this chapter address central concepts rather than details of these pathways. Other questions have accompanying figures that provide details for reference and ask students to interpret or use these models. Overall, the emphases are on the inputs and outputs of each pathway, the relationships among these pathways, the cellular locations, redox as a central principle in respiration, and chemiosmosis. Multiple-Choice Questions

Campbell Biology Chapter 9

Subject:

Rating:

No votes yet

SocialTags:

Chemiosmosis

Pyruvate decarboxylation

Anaerobic respiration

Mitochondrial matrix

Carbohydrate catabolism

? 2017 Pearson Education, Inc. Lecture Presentations byNicole Tunbridge and Kathleen Fitzpatrick Chapter 9Cellular Respiration and Fermentation 1 Life Is Work an Introduction Living cells require energy to do work: assembling polymers, membrane transport, etc. Animals can obtain energy by feeding on other animals or photosynthetic organisms Energy flows into an ecosystem as sunlight and leaves as heat The chemical elements essential to life are recycled Photosynthesis generates O2 and organic molecules, which are used in cellular respiration Cells use chemical energy stored in organic molecules to generate ATP, which powers work ? 2017 Pearson Education, Inc. 2 Light energy ECOSYSTEM Photosynthesis in chloroplasts Cellular respiration in mitochondria CO2 + H2O + O2 Organic

Cell Respiration _ Find the words

Subject:

Rating:

No votes yet

SocialTags:

Crista

Mitochondrion

Glycolysis

Carbohydrate catabolism

Cellular respiration .. Word Find During glycolysis, glucose is broken down to what 3 ? Carbon compound? __ __ __ __ __ __ __ __ __ __ __ During the electron transport chain, what is pumped from the matrix across the cristae into the intermembrane space? __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ This molecule is the primary fuel for cellular respiration. __ __ __ __ __ __ __ This type of respiration can only occur in the presence of oxygen. __ __ __ __ __ __ __ The Krebs?s cycle occurs in this part of the mitochondria. __ __ __ __ __ __ This molecule serves as a source of immediate energy for cellular processes that require energy. __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __

AP biology test bank chp 9

Subject:

Rating:

No votes yet

SocialTags:

Beta oxidation

Campbell's Biology, 9e (Reece et al.) Chapter 9 Cellular Respiration and Fermentation This is one of the most challenging chapters for students to master. Many students become overwhelmed and confused by the complexity of the pathways, with the multitude of intermediate compounds, enzymes, and processes. The vast majority of the questions in this chapter address central concepts rather than details of these pathways. Other questions have accompanying figures that provide details for reference and ask students to interpret or use these models. Overall, the emphases are on the inputs and outputs of each pathway, the relationships among these pathways, the cellular locations, redox as a central principle in respiration, and chemiosmosis. Multiple-Choice Questions

respiration respiration

Subject:

Rating:

No votes yet

SocialTags:

Anaerobic respiration

Citric acid cycle

Crista

Adenosine triphosphate

Adenosine diphosphate

1 B io F actsheet January 1998 Number 12 Respiration Aerobic respiration can be divided into four stages: 1. Glycolysis (G) 2. The Link reaction (LR) 3. Kreb?s cycle (K) 4. The electron transfer chain (ETC) These take place in different parts of the cell (Table 1) and the detailed biochemistry of these reactions is shown overleaf. Respiratory quotients The respiratory quotient (RQ) is defined as the ratio of carbon dioxide produced to oxygen consumed per unit time by an organism: volume of CO2 produced volume of O2 consumed Different substances give different RQ values Cellular respiration is the process by which the energy contained in organic molecules is made available for all of the active

Ap bio cell respiration3 ppt

Subject:

Rating:

No votes yet

SocialTags:

Adenosine triphosphate

Acetyl-CoA

Mitochondrion

Mitochondrial matrix

Nicotinamide adenine dinucleotide

Overview 10 reactions convert glucose (6C) to 2 pyruvate (3C) produces: 4 ATP & 2 NADH consumes: 2 ATP net: 2 ATP & 2 NADH glucose C-C-C-C-C-C fructose-1,6bP P-C-C-C-C-C-C-P DHAP P-C-C-C G3P C-C-C-P pyruvate C-C-C ATP 2 ADP 2 ATP 4 ADP 4 NAD+ 2 2 2Pi 2Pi 2H Cellular Respiration Stage 2 & 3: Oxidation of Pyruvate Krebs Cycle Glycolysis is only the start Glycolysis Pyruvate has more energy to yield 3 more C to strip off (to oxidize) if O2 is available, pyruvate enters mitochondria enzymes of Krebs cycle complete the full oxidation of sugar to CO2 pyruvate ? ? ? ? ? ? CO2 2x 6C 3C glucose ? ? ? ? ? pyruvate 3C 1C Cellular respiration Mitochondria ??Structure Double membrane energy harvesting organelle smooth outer membrane highly folded inner membrane cristae

Ap bio cell respiration2 ppt

Subject:

Rating:

No votes yet

SocialTags:

Substrate-level phosphorylation

1,3-Bisphosphoglyceric acid

Ethanol fermentation

Cellular Respiration Stage 1: Glycolysis What?s the point? The point is to make ATP! ATP Glycolysis Breaking down glucose ?glyco ? lysis? (splitting sugar) ancient pathway which harvests energy where energy transfer first evolved transfer energy from organic molecules to ATP still is starting point for ALL cellular respiration but it?s inefficient generate only 2 ATP for every 1 glucose occurs in cytosol glucose ? ? ? ? ? pyruvate 2x 6C 3C In the cytosol? Why does that make evolutionary sense? That?s not enough ATP for me! Evolutionary perspective Prokaryotes first cells had no organelles Anaerobic atmosphere life on Earth first evolved without free oxygen (O2) in atmosphere energy had to be captured from organic molecules in absence of O2

Ap bio cell respiration1 ppt

Subject:

Rating:

No votes yet

SocialTags:

Cellular respiration

Biochemistry

Redox

Nicotinamide adenine dinucleotide

Bioenergetics

Glycolysis

Citric acid cycle

Anaerobic respiration

Cofactor

Metabolism

Cellular Respiration Harvesting Chemical Energy ATP What?s the point? The point is to make ATP! ATP Harvesting stored energy Energy is stored in organic molecules carbohydrates, fats, proteins Heterotrophs eat these organic molecules ? food digest organic molecules to get? raw materials for synthesis fuels for energy controlled release of energy ?burning? fuels in a series of step-by-step enzyme-controlled reactions Harvesting stored energy Glucose is the model catabolism of glucose to produce ATP C6H12O6 6O2 ATP 6H2O 6CO2 ? + + + CO2 + H2O + heat fuel (carbohydrates) COMBUSTION = making a lot of heat energy by burning fuels in one step RESPIRATION = making ATP (& some heat) by burning fuels in many small steps CO2 + H2O + ATP (+ heat) ATP glucose

Ch 7 Study Guide

Subject:

Rating:

No votes yet

SocialTags:

Substrate-level phosphorylation

Chemiosmosis

Adenosine triphosphate

Carbohydrate catabolism

AP Biology Name ____Ryan Hanssens_______ Chapter 9 Guided Reading Assignment ?Hint: review the concept check questions ? these are great quick quiz questions!? Define the two catabolic pathways: Fermentation ? a partial degradation of sugars that occurs without the use of oxygen? Cellular respiration ? when oxygen is consumed as a reactant along with the organic fuel; most efficient catabolic pathway; mitochondria house most of the metabolic equipment needed ??

Chapter 9 Notes

Subject:

Rating:

No votes yet

SocialTags:

Glucose

Lactic acid fermentation

Glycolysis

Environment

Tags:

Substrate-level phosphorylation

Citric acid cycle

Crista