• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Biology 177-201B
Biology 177-201B

...  Hydrolysis of ATP to ADP and phosphate drives energy consuming processes  Oxidation, reduction, respiration, oxidative phosphorylation  Electron (and proton) carrier molecules  Energy capture in proton gradients Readings: Lodish et al., pp. 57 – 61; Berg et al. pp. 375-383. Lecture 4. Glycolyis ...
doc BIOL210syllabus
doc BIOL210syllabus

...  Hydrolysis of ATP to ADP and phosphate drives energy consuming processes  Oxidation, reduction, respiration, oxidative phosphorylation  Electron (and proton) carrier molecules  Energy capture in proton gradients Readings: Lodish et al., pp. 57 – 61; Berg et al. pp. 375-383. Lecture 4. Glycolyis ...
Student Study Guide
Student Study Guide

... The Krebs cycle completes the energy-yielding oxidation of organic molecules: a closer look (pp. 161166, FIGURES 9.11, 9.12) The conversion of pyruvate to acetyl CoA links glycolysis to the Krebs cycle. The twocarbon acetate of acetyl CoA joins the four-carbon oxaloacetate to form the six-carbon cit ...
Exam Review Part 2: Energy Conversions, Enezymes, and Cells
Exam Review Part 2: Energy Conversions, Enezymes, and Cells

... (1) occurs in mitochondrial matrix (2) also called the citric acid cycle (3) occurs twice (one for each acetyl co-a) (4) Pyruvate is oxidized further and carbon dioxide is released; ATP is synthesized from ADP and inorganic phosphate via substrate level phosphorylation and electrons are captured by ...
Integration of Metabolism: Glucose Synthesis
Integration of Metabolism: Glucose Synthesis

... Both kinase & phosphatase reactions are exergonic. Kinase uses ATP for phosphate source and ...
Biochemistry - Text of NPTEL IIT Video Lectures
Biochemistry - Text of NPTEL IIT Video Lectures

... Like in glucose we had ATP being formed that is the formation of a high energy compound. The electrons from the tricarboxylic acid cycle are made available to an electron transport chain in the form of 3 NADH and 1 FADH2. So these are also formed in the reactions in the Krebs cycle and this NADH and ...
Basic Principle in Plant Physiology
Basic Principle in Plant Physiology

... •Amino acids released from protein turnover can be resynthesized into proteins. •Excess amino acids are degraded into specific compounds that can be used in other metabolic pathways. •This process begins with the removal of the amino group, which can be converted to urea and excreted. •The a-ketoids ...
Chem*3560 Lecture 22: Fatty acid desaturation Relationship of
Chem*3560 Lecture 22: Fatty acid desaturation Relationship of

... Lipids that include unsaturated fatty acids with cis-double bonds have lower the melting points. In plants, unsaturated triacylglycerols are liquid oils rather that solid fats like animal triacylglycerols, which are predominantly made from saturated fatty acids. In animals, unsaturated fatty acids a ...
Building Blocks of Organic
Building Blocks of Organic

... and shelf life. • Found in commercially fried foods (French fries, popcorn), commercial baked goods and snacks (cakes, cookies, biscuits), margarine, and cheap vegetable shortenings (not in e.g. Flora, Rama). ...
sample
sample

... Under certain circumstances fats and proteins may be used as respiratory substrates. Individuals are able to survive for long periods without food because they can use their reserves of carbohydrate, fat and protein: l฀ ...
Chapter 23 Respiratory System Functions: Provides for gas
Chapter 23 Respiratory System Functions: Provides for gas

...  Final electron acceptor is oxygen to form _______________________  Carriers act as proton pumps to expel H+ from mitochondrial matrix  Creates ______________________________ – concentration gradient and electrical gradient  Gradient has potential energy – proton motive force  As H+ flows back ...
Organic Chemistry Fifth Edition
Organic Chemistry Fifth Edition

... While their name implies that amino acids are compounds that contain an amine (— NH2) and a carboxylic acid (-CO2H), these groups are actually present as their conjugate acid (—NH3+) and conjugate base ...
Final
Final

... absorb very different types of light. __________ Heterocysts are specialized cells in cyanobacteria that are involved in CO2 fixation. __________ Coenzyme A is involved with transfer of carbon atoms, while NAD+ is involved in electron transfer. __________ The net result of proton extrusion through t ...
MACROMOLECULE SUMMARY SHEET
MACROMOLECULE SUMMARY SHEET

... Examples ...
essential amino acid
essential amino acid

... • Essential amino acids are those deficient in plant based foods like lys, met, thr, Trp improves nutritional quality of food and feed additives (animal). Bread: lysine, soy products or soyabean meal (pigs/animals): methionine ...
HERE
HERE

... elevation of Lactic Acid, decrease pH and low Bicarbonate concentration in Blood ‰ Lactic Acidosis: Overproduction or Underutilization of Lactate, or both ‰ Under Hypoxic condition, tissues respond with Increase in Anaerobic Glycolysis resulting in production of Lactate o Decrease O2 availability th ...
Maple Syrup Urine Disease
Maple Syrup Urine Disease

... Some states don’t include this test in newborn screenings Some infants are only tested after symptoms occur ...
Pre-Test
Pre-Test

... The cycling between ATP and ADP + Pi provides an energy coupling between catabolic and anabolic pathways. The energy release on hydrolysis of ATP is the result of breaking a high-energy bond. Much of the free energy released on the hydrolysis of ATP is available to do cellular work. In many cases, A ...
ch24a_wcr
ch24a_wcr

... Krebs cycle, substrate-level phosphorylation forms small amounts of ATP. ...
Cellular Respiration
Cellular Respiration

... • Proteins can be digested to amino acids, which are chemically altered and then used in the Krebs cycle • Fats are broken up and fed into glycolysis and the Krebs cycle Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Questions
Questions

... All of the mutants had decreased creatine kinase activity as compared to the wild-type enzyme. What information does this result provide about the reaction mechanism in the wild-type enzyme? The activity of the mutant enzyme C278D was 12-fold greater than the activity of the C278N mutant. Suggest an ...
Exercise and Respiration Paloma
Exercise and Respiration Paloma

... • At start of exercise: Glycolysis (anaerobic means of ATP provision) is primed by hormones and neurotransmitters • -Low/moderate intensity: energy demands are met increasingly by fat (muscle triglycerides/plasma free fatty acids) • -high intensity: energy from carbohydrate-derived fuels predominat ...
Aminosav metabolizmus IV. Aminosavak bioszintézise
Aminosav metabolizmus IV. Aminosavak bioszintézise

... Jaundice in newborn infants: not enough glucuronyl bilirubin transferase (exposure to fluorescent lamp  photochemical conversion of bilirubin) ...
the chemical constituents of cells constituents include
the chemical constituents of cells constituents include

... acids that can be synthesized by the body • essential amino acids are those amino acids that cannot be synthesized by the body and must obtain from other sources • plants can synthesize all amino acids ...
Wade Chapter Twenty-Four Outline: Amino Acids and Peptides
Wade Chapter Twenty-Four Outline: Amino Acids and Peptides

... b. SN2 reaction of ammonia (excess) with -haloacid (24-5B) c. Gabriel-Malonic Ester Synthesis (Section 24-5C) o N-phthalimidomalonic ester alkylation with NaOEt then RX o Hydrolysis of ester and release of N o Decarboxylation with heat d. The Strecker Synthesis: RCHO + NH3 and HCN then H3O+: (Mecha ...
< 1 ... 266 267 268 269 270 271 272 273 274 ... 483 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report