Welcome to the basics lecture on cellular respiration
... In this class, we are not interested in memorizing all of the intermediates and enzymes. There will be time for that in your biochemistry course. Instead, I want you to know the following about glycolysis: 1. It occurs in the cytosol, outside of the mitochondrion. 2. Glucose has some electrons re ...
... In this class, we are not interested in memorizing all of the intermediates and enzymes. There will be time for that in your biochemistry course. Instead, I want you to know the following about glycolysis: 1. It occurs in the cytosol, outside of the mitochondrion. 2. Glucose has some electrons re ...
Bio426Lecture25Apr3 - NAU jan.ucc.nau.edu web server
... If no O2,then “fermentation” occurs, pyruvate is reduced to lactic acid and/or ethanol. ...
... If no O2,then “fermentation” occurs, pyruvate is reduced to lactic acid and/or ethanol. ...
METHODS OF PROVIDING ENERGY for MUSCLE ACTIVITY
... • Fastest mechanism for regenerating ATP • Creatine phosphate found only in muscle cells • Supply is quickly exhausted (about 20 seconds) ...
... • Fastest mechanism for regenerating ATP • Creatine phosphate found only in muscle cells • Supply is quickly exhausted (about 20 seconds) ...
Ch 7 outline
... 4. If the cell has plenty of energy, acetyl-CoA is transferred to a fat-depositing pathway; otherwise it enters the Krebs cycle. C. Step Two: The Krebs Cycle 1. The Krebs cycle takes place in the mitochondria, and its nine reactions can be grouped into three stages. 2. In the first stage, acetyl-CoA ...
... 4. If the cell has plenty of energy, acetyl-CoA is transferred to a fat-depositing pathway; otherwise it enters the Krebs cycle. C. Step Two: The Krebs Cycle 1. The Krebs cycle takes place in the mitochondria, and its nine reactions can be grouped into three stages. 2. In the first stage, acetyl-CoA ...
Cell Respiration Cellular Respiration Aerobic Respiration Aerobic
... • Energy is released in small increments via long metabolic pathways – Allows cells to efficiently release and use energy contained in food molecules ...
... • Energy is released in small increments via long metabolic pathways – Allows cells to efficiently release and use energy contained in food molecules ...
PowerPoint
... Glycolysis • Occurs in cytoplasm of the cell • Breakdown of one glucose molecule into two pyruvate molecules • Yields 2 ATP molecules (net) and 2 NADH molecules ...
... Glycolysis • Occurs in cytoplasm of the cell • Breakdown of one glucose molecule into two pyruvate molecules • Yields 2 ATP molecules (net) and 2 NADH molecules ...
UNIT 3 – CELLULAR ENERGETICS Chapter 9
... Name the three stages of cellular respiration and state the region of the eukaryotic cell where each stage occurs. Describe how the carbon skeleton of glucose changes as it proceeds through glycolysis. Explain why ATP is required for the preparatory steps of glycolysis. Identify where substrate-leve ...
... Name the three stages of cellular respiration and state the region of the eukaryotic cell where each stage occurs. Describe how the carbon skeleton of glucose changes as it proceeds through glycolysis. Explain why ATP is required for the preparatory steps of glycolysis. Identify where substrate-leve ...
Chapter 1 HW
... 1. Outline- Chapter 6- not typed 2. Vocabulary- on a separate sheet of paper number terms and write define. Indent on the line below and write an example or sentence or draw a picture. 1. acetyl Co-A 2. cellular respiration 3. kilocalorie 4. dehydrogenase 5. NAD+ 6. FAD+ 7. electron transport system ...
... 1. Outline- Chapter 6- not typed 2. Vocabulary- on a separate sheet of paper number terms and write define. Indent on the line below and write an example or sentence or draw a picture. 1. acetyl Co-A 2. cellular respiration 3. kilocalorie 4. dehydrogenase 5. NAD+ 6. FAD+ 7. electron transport system ...
Cellular Respiration Chapter 9
... The cell can use Fermentation instead!! Occurs in the Cytoplasm Just like glycolysis!! Fermentation A series of reactions that convert NADH (from glycolysis) back into NAD allowing glycolysis to keep producing a small amount of ATP ...
... The cell can use Fermentation instead!! Occurs in the Cytoplasm Just like glycolysis!! Fermentation A series of reactions that convert NADH (from glycolysis) back into NAD allowing glycolysis to keep producing a small amount of ATP ...
Anaerobic Pathways Glycolysis
... (C4) to make Citrate (C6) – Break off two carbons (released as CO2) – Yield (per pyruvate) ...
... (C4) to make Citrate (C6) – Break off two carbons (released as CO2) – Yield (per pyruvate) ...
Cellular respiration includes three pathways
... 37. ATP synthase makes _______________________from ADP + Pi. 38. This is an example of_______________________________________, the use of energy stored in the form of an H+ gradient across a membrane to drive cellular work. 39. _______________________________ and ____________________________________ ...
... 37. ATP synthase makes _______________________from ADP + Pi. 38. This is an example of_______________________________________, the use of energy stored in the form of an H+ gradient across a membrane to drive cellular work. 39. _______________________________ and ____________________________________ ...
Presentation
... • Lactic acidosis can result from insufficient oxygen (an increase in lactic acid and decrease in blood pH) ...
... • Lactic acidosis can result from insufficient oxygen (an increase in lactic acid and decrease in blood pH) ...
Chapter 9 - Cellular Respiration
... Glycolysis: 2 ATP (substrate-level phosphorylation) Kreb’s Cycle: 2 ATP (substrate-level phosphorylation) ...
... Glycolysis: 2 ATP (substrate-level phosphorylation) Kreb’s Cycle: 2 ATP (substrate-level phosphorylation) ...
products
... GLYCOLYSIS The 1st Step Starts with the break down of Glucose (or any organic compound) • Occurs in the CYTOPLASM of cells • 1. GLUCOSE is split into two 3 carbon carbons called PYRUVATE. • This requires energy from 2 ATP‘S, which have to be borrowed from the cell. • Also, the Hydrogen from glucose ...
... GLYCOLYSIS The 1st Step Starts with the break down of Glucose (or any organic compound) • Occurs in the CYTOPLASM of cells • 1. GLUCOSE is split into two 3 carbon carbons called PYRUVATE. • This requires energy from 2 ATP‘S, which have to be borrowed from the cell. • Also, the Hydrogen from glucose ...
Cellular Respiration Chapter 9
... The cell can use Fermentation instead!! Occurs in the Cytoplasm Just like glycolysis!! Fermentation A series of reactions that convert NADH (from glycolysis) back into NAD allowing glycolysis to keep producing a small amount of ATP ...
... The cell can use Fermentation instead!! Occurs in the Cytoplasm Just like glycolysis!! Fermentation A series of reactions that convert NADH (from glycolysis) back into NAD allowing glycolysis to keep producing a small amount of ATP ...
Anaerobic Respiration
... much lower yield of ATP than aerobic respiration; • compare and contrast anaerobic respiration in mammals and in yeast; Q. What is the final electron acceptor in oxidative phosphorylation? A. Oxygen ...
... much lower yield of ATP than aerobic respiration; • compare and contrast anaerobic respiration in mammals and in yeast; Q. What is the final electron acceptor in oxidative phosphorylation? A. Oxygen ...
BIO 219 Spring 2013 Outline for “Cell Metabolism” Energy (ATP
... Five integral membrane proteins NADH & FADH2 Oxygen (Why do we need it?) Net yield Fermentation Glycolysis Lactic acid production What about fats and proteins as an energy source? Objectives: By the end of lecture today you should be able to . . . (1) Describe the similarities and differences betwee ...
... Five integral membrane proteins NADH & FADH2 Oxygen (Why do we need it?) Net yield Fermentation Glycolysis Lactic acid production What about fats and proteins as an energy source? Objectives: By the end of lecture today you should be able to . . . (1) Describe the similarities and differences betwee ...
29 Cellular Respiration Biology “B”
... To get the sugar into the body, we first eat the different macromolecules and chew them up. The reason to chew the food is to mechanically break down the food so enzymes can break the macromolecules down easier (that is the enzymes need to GET AT every single molecule). If the molecules are stuck in ...
... To get the sugar into the body, we first eat the different macromolecules and chew them up. The reason to chew the food is to mechanically break down the food so enzymes can break the macromolecules down easier (that is the enzymes need to GET AT every single molecule). If the molecules are stuck in ...
Aerobic Respiration
... In summary, aerobic respiration is: • Glycolysis – the phosphorylation of glucose to 6C hexose phosphate, then splitting into 2 x 3C triose phosphate molecules which are oxidised to form 2 x pyruvate, yielding a little ATP and reduced NAD. In cytoplasm. • Link reaction - pyruvate is decarboxylated ...
... In summary, aerobic respiration is: • Glycolysis – the phosphorylation of glucose to 6C hexose phosphate, then splitting into 2 x 3C triose phosphate molecules which are oxidised to form 2 x pyruvate, yielding a little ATP and reduced NAD. In cytoplasm. • Link reaction - pyruvate is decarboxylated ...
Cellular respiration is the of food
... ____________________ of the cell. If oxygen is available, the pyruvate enters a ________________________, where it loses a carbon atom as ___________ and becomes the two-carbon molecule ________________. The molecule enters the _________________. Electron shuttle molecules, _______________ and ____ ...
... ____________________ of the cell. If oxygen is available, the pyruvate enters a ________________________, where it loses a carbon atom as ___________ and becomes the two-carbon molecule ________________. The molecule enters the _________________. Electron shuttle molecules, _______________ and ____ ...
digestion and absorption of carbohydrate
... How many ATP produced? (Remember there are two 3C fragments from glucose.) ________ ...
... How many ATP produced? (Remember there are two 3C fragments from glucose.) ________ ...
Chapter 5 - Missouri State University
... •Breakdown larger organic molecules into smaller molecules. •Serve as primary sources of energy for synthesis of __________________ –Anabolic: •Require ________________ of energy. •Synthesis of large energy-storage molecules. ...
... •Breakdown larger organic molecules into smaller molecules. •Serve as primary sources of energy for synthesis of __________________ –Anabolic: •Require ________________ of energy. •Synthesis of large energy-storage molecules. ...
Glycolysis
Glycolysis (from glycose, an older term for glucose + -lysis degradation) is the metabolic pathway that converts glucose C6H12O6, into pyruvate, CH3COCOO− + H+. The free energy released in this process is used to form the high-energy compounds ATP (adenosine triphosphate) and NADH (reduced nicotinamide adenine dinucleotide).Glycolysis is a determined sequence of ten enzyme-catalyzed reactions. The intermediates provide entry points to glycolysis. For example, most monosaccharides, such as fructose and galactose, can be converted to one of these intermediates. The intermediates may also be directly useful. For example, the intermediate dihydroxyacetone phosphate (DHAP) is a source of the glycerol that combines with fatty acids to form fat.Glycolysis is an oxygen independent metabolic pathway, meaning that it does not use molecular oxygen (i.e. atmospheric oxygen) for any of its reactions. However the products of glycolysis (pyruvate and NADH + H+) are sometimes disposed of using atmospheric oxygen. When molecular oxygen is used in the disposal of the products of glycolysis the process is usually referred to as aerobic, whereas if the disposal uses no oxygen the process is said to be anaerobic. Thus, glycolysis occurs, with variations, in nearly all organisms, both aerobic and anaerobic. The wide occurrence of glycolysis indicates that it is one of the most ancient metabolic pathways. Indeed, the reactions that constitute glycolysis and its parallel pathway, the pentose phosphate pathway, occur metal-catalyzed under the oxygen-free conditions of the Archean oceans, also in the absence of enzymes. Glycolysis could thus have originated from chemical constraints of the prebiotic world.Glycolysis occurs in most organisms in the cytosol of the cell. The most common type of glycolysis is the Embden–Meyerhof–Parnas (EMP pathway), which was discovered by Gustav Embden, Otto Meyerhof, and Jakub Karol Parnas. Glycolysis also refers to other pathways, such as the Entner–Doudoroff pathway and various heterofermentative and homofermentative pathways. However, the discussion here will be limited to the Embden–Meyerhof–Parnas pathway.The entire glycolysis pathway can be separated into two phases: The Preparatory Phase – in which ATP is consumed and is hence also known as the investment phase The Pay Off Phase – in which ATP is produced.↑ ↑ 2.0 2.1 ↑ ↑ ↑ ↑ ↑ ↑