chapter07
... Also known as the Krebs cycle and tricarboxylic acid (TCA). Two acetyl-CoA produced from one glucose molecule enter the citric acid cycle. It takes place in the mitochondrial matrix and a specific enzyme catalyzes each step. The acetate group of acetyl-CoA combines with a 4-C molecule of oxaloacetat ...
... Also known as the Krebs cycle and tricarboxylic acid (TCA). Two acetyl-CoA produced from one glucose molecule enter the citric acid cycle. It takes place in the mitochondrial matrix and a specific enzyme catalyzes each step. The acetate group of acetyl-CoA combines with a 4-C molecule of oxaloacetat ...
Chapter 1 Homework - due Tuesday, Sept
... 3. Why is each of the following essential to chemiosmotic ATP synthesis? a) electron transport chain - these protein complexes pump protons into the intermembrane space while passing electrons between them b) proton gradient - so that hydrogen ions will diffuse through the ATP synthase channels down ...
... 3. Why is each of the following essential to chemiosmotic ATP synthesis? a) electron transport chain - these protein complexes pump protons into the intermembrane space while passing electrons between them b) proton gradient - so that hydrogen ions will diffuse through the ATP synthase channels down ...
Puzzle - UBC Blogs
... light energy and pass excited electrons to acceptor molecules 25 ________________proton gradient drives ATP synthesis ...
... light energy and pass excited electrons to acceptor molecules 25 ________________proton gradient drives ATP synthesis ...
Clicker game ?`s
... 4 The process in photosynthesis that most closely resembles chemiosmosis and oxidative phosphorylation in cell respiration is A cyclic phosphorylation B non cyclic phosphorylation C ATP synthase coupling D Calvin cycle E acetyl CoA formation 5 The P680 chlorophyll has its "holes" filled by electrons ...
... 4 The process in photosynthesis that most closely resembles chemiosmosis and oxidative phosphorylation in cell respiration is A cyclic phosphorylation B non cyclic phosphorylation C ATP synthase coupling D Calvin cycle E acetyl CoA formation 5 The P680 chlorophyll has its "holes" filled by electrons ...
Questions for Respiration and Photoshyntesis
... 13. What are the end products of gylcolysis? 2 pyruvate, 2 NADH, and 2 NET ATP 14. What is pyruvate? Forms at end of glycolysis - 3 C compound (there are 2 of them created) 15. Before pyruvate can enter the citric acid cycle what has to happen? Enzyme process pyruvate, CO2 (2) is released creating a ...
... 13. What are the end products of gylcolysis? 2 pyruvate, 2 NADH, and 2 NET ATP 14. What is pyruvate? Forms at end of glycolysis - 3 C compound (there are 2 of them created) 15. Before pyruvate can enter the citric acid cycle what has to happen? Enzyme process pyruvate, CO2 (2) is released creating a ...
SBI4U: Unit 2 Review, Metabolic Processes SAMPLE TEST
... 2. Which element is typically reduced in biological reactions? What element does it combine with to become reduced? 3. Explain exergonic and endergonic reactions using a potential energy diagram. How do enzymes change the diagrams? 4. What are the three specific goals of aerobic cellular respiration ...
... 2. Which element is typically reduced in biological reactions? What element does it combine with to become reduced? 3. Explain exergonic and endergonic reactions using a potential energy diagram. How do enzymes change the diagrams? 4. What are the three specific goals of aerobic cellular respiration ...
Cell Respiration and Fermentation PPT
... and reproduce, maintain their structures, and respond to their environments. – Usually divided into two categories. Catabolism and Anabolism − Catabolism: breaking down & releasing energy − Anabolism: building up & requires energy ...
... and reproduce, maintain their structures, and respond to their environments. – Usually divided into two categories. Catabolism and Anabolism − Catabolism: breaking down & releasing energy − Anabolism: building up & requires energy ...
Photosynthesis and Cellular Respiration
... A simple, 6 carbon sugar that serves as the primary energy source ATP (Adenosine triphosphate): The major energy currency of the cell. NADH and FADH2: High energy electron carrier used to transport electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain. ...
... A simple, 6 carbon sugar that serves as the primary energy source ATP (Adenosine triphosphate): The major energy currency of the cell. NADH and FADH2: High energy electron carrier used to transport electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain. ...
Clicker game ?`s
... 4 The process in photosynthesis that most closely resembles chemiosmosis and oxidative phosphorylation in cell respiration is A cyclic phosphorylation B non cyclic phosphorylation C ATP synthase coupling D Calvin cycle E acetyl CoA formation 5 The P680 chlorophyll has its "holes" filled by electrons ...
... 4 The process in photosynthesis that most closely resembles chemiosmosis and oxidative phosphorylation in cell respiration is A cyclic phosphorylation B non cyclic phosphorylation C ATP synthase coupling D Calvin cycle E acetyl CoA formation 5 The P680 chlorophyll has its "holes" filled by electrons ...
design of energy metabolism
... c) Proteins/Amino Acids = entry into Krebs Cycle involves two steps: i. Removal of amino group – eventually excreted as nitrogenous waste ii. Conversion of carbon skeletons to pyruvate, acetyl-CoA, or other Krebs Cycle intermediates (See Figure 6.13) iii. Step 1 above is rate-limiting. Efficiency of ...
... c) Proteins/Amino Acids = entry into Krebs Cycle involves two steps: i. Removal of amino group – eventually excreted as nitrogenous waste ii. Conversion of carbon skeletons to pyruvate, acetyl-CoA, or other Krebs Cycle intermediates (See Figure 6.13) iii. Step 1 above is rate-limiting. Efficiency of ...
Chapter #9 Cellular Respiration Harvesting Chemical Energy
... G. Stepwise Energy Harvest via NAD+ and the Electron Transport Chain 1. During cellular respiration, glucose is oxidized to carbon dioxide & oxygen is reduced to water. 2. Electrons lose potential energy during their transfer from organic compounds to oxygen. 3. Electrons from organic compounds are ...
... G. Stepwise Energy Harvest via NAD+ and the Electron Transport Chain 1. During cellular respiration, glucose is oxidized to carbon dioxide & oxygen is reduced to water. 2. Electrons lose potential energy during their transfer from organic compounds to oxygen. 3. Electrons from organic compounds are ...
CARBOHYDRATE METABOLISM
... Pyruvate is converted to acetyl CoA by oxidative decarboxylation. This is an irreversible reaction, catalysed by a multi enzyme complex, known as pyruvate dehydrogenase complex (PDH), which is found only in the mitochondria. The enzyme PDH requires five cofactors (coenzymes), namely1. ...
... Pyruvate is converted to acetyl CoA by oxidative decarboxylation. This is an irreversible reaction, catalysed by a multi enzyme complex, known as pyruvate dehydrogenase complex (PDH), which is found only in the mitochondria. The enzyme PDH requires five cofactors (coenzymes), namely1. ...
SBI4U: Respiration and Photosynthesis Test
... 4). Rubisco is the most common protein in the world. a) What does it do? [2] b) How many reactions must it be involved in for the plant to gain one useful G3P? [1] c) What happens to all the G3P that is produced? [2] 5). A plant uses 54 ATP to build one glucose molecule, but only gets 36 ATP when it ...
... 4). Rubisco is the most common protein in the world. a) What does it do? [2] b) How many reactions must it be involved in for the plant to gain one useful G3P? [1] c) What happens to all the G3P that is produced? [2] 5). A plant uses 54 ATP to build one glucose molecule, but only gets 36 ATP when it ...
Cellular Respiration Explained
... ❋GLYCOLYSIS means the “splitting of sugar,” and takes place in the cytoplasm! The overall process is just that: Glucose, a six carbon sugar is split into two separate three carbon molecules. These are then changed into another type of molecule called pyruvate, AKA pyruvic acid. But pyruvate is not t ...
... ❋GLYCOLYSIS means the “splitting of sugar,” and takes place in the cytoplasm! The overall process is just that: Glucose, a six carbon sugar is split into two separate three carbon molecules. These are then changed into another type of molecule called pyruvate, AKA pyruvic acid. But pyruvate is not t ...
Biochemistry - Circle of Docs
... 20. The enzymes for glycolysis are located in which part of the cell: a. Mitochondria b. Cytosol c. Lysosomes d. Endoplasmic reticulum 21. Which enzyme converts pyruvate to lactate during anaerobic glycolysis a. Pyruvate dehydrogenase b. Lactate dehydrogenase c. Lactate hydrolase d. Pyruvate decarbo ...
... 20. The enzymes for glycolysis are located in which part of the cell: a. Mitochondria b. Cytosol c. Lysosomes d. Endoplasmic reticulum 21. Which enzyme converts pyruvate to lactate during anaerobic glycolysis a. Pyruvate dehydrogenase b. Lactate dehydrogenase c. Lactate hydrolase d. Pyruvate decarbo ...
The TCA cycle
... Energy is produced and trapped as ATP by oxidative phosphorylation. Energy is also produced during the TCA cycle in the form of GTP (which is formally equivalent to ATP). Energy use in man At rest we will consume half our body weight in ATP per day! Of course we cannot store this amount of ATP. As w ...
... Energy is produced and trapped as ATP by oxidative phosphorylation. Energy is also produced during the TCA cycle in the form of GTP (which is formally equivalent to ATP). Energy use in man At rest we will consume half our body weight in ATP per day! Of course we cannot store this amount of ATP. As w ...
LECTURE 9 – 20th March 2015
... to the Krebs Cycle, picks up another couple of electrons, runs back again to the Electron Transport Chain. - NADH dehydrogenase = pulls the hydrogen ion from NADH (temporary electron carrier) - The electron being passed up to one enzymes complex to another with a series of redox reaction. ...
... to the Krebs Cycle, picks up another couple of electrons, runs back again to the Electron Transport Chain. - NADH dehydrogenase = pulls the hydrogen ion from NADH (temporary electron carrier) - The electron being passed up to one enzymes complex to another with a series of redox reaction. ...
Part A: Multiple Choice (10 marks- Knowledge) - OISE-IS
... Waste Products Produced Net ATP Produced ...
... Waste Products Produced Net ATP Produced ...
File
... • Steps 3–4: Oxidative decarboxylations to give 2 NADH • Step 5: Substrate-level phosphorylation to give GTP • Step 6: Dehydrogenation to give reduced FADH2 • Step 7: Hydration • Step 8: Dehydrogenation to give NADH ...
... • Steps 3–4: Oxidative decarboxylations to give 2 NADH • Step 5: Substrate-level phosphorylation to give GTP • Step 6: Dehydrogenation to give reduced FADH2 • Step 7: Hydration • Step 8: Dehydrogenation to give NADH ...
HB_Cell_Resp_KEYS_and_Review_Notes_12_BH
... If all the energy in glucose were released at once, it would be wasted. Most of the energy would be lost all at once as heat, burning up the cell. ...
... If all the energy in glucose were released at once, it would be wasted. Most of the energy would be lost all at once as heat, burning up the cell. ...
Content of phloem and xylem exudates
... In the absence of oxygen the energy stored as NADH is used to produce ethanol. In this process only 3% of the energy available in glucose is obtained in 2 moles of ATP formed per mole of glucose. 13% of the energy goes off as heat and 84% is present in the 2 moles of ethanol formed. ...
... In the absence of oxygen the energy stored as NADH is used to produce ethanol. In this process only 3% of the energy available in glucose is obtained in 2 moles of ATP formed per mole of glucose. 13% of the energy goes off as heat and 84% is present in the 2 moles of ethanol formed. ...
Sucrose is used for respiration, storage or construction. Plants
... in 2 moles of ATP formed per mole of glucose. 13% of the energy goes off as heat and 84% is present in the 2 moles of ethanol formed. ...
... in 2 moles of ATP formed per mole of glucose. 13% of the energy goes off as heat and 84% is present in the 2 moles of ethanol formed. ...
Citric acid cycle
The citric acid cycle – also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of adenosine triphosphate (ATP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.The name of this metabolic pathway is derived from citric acid (a type of tricarboxylic acid) that is consumed and then regenerated by this sequence of reactions to complete the cycle. In addition, the cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the TCA cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP.In eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondrion. In prokaryotic cells, such as bacteria which lack mitochondria, the TCA reaction sequence is performed in the cytosol with the proton gradient for ATP production being across the cell's surface (plasma membrane) rather than the inner membrane of the mitochondrion.