Lactate dehydrogenase (LDH) plays an essential role in an exercising muscle, especially when the level of excursion surpasses the ability of circulatory systems ability to supply adequate oxygen. What is the main reason LDH is so important to the muscle under these conditions? It produces one mole of ATP via substrate level phosphorylation It resupplies NAD+ to glyceraldehyde 3-phosphate dehydrogenase. It decreases pH thus decreasing the dissociation rate of oxygen from hemoglobin It produces NADH for energy while converting pyruvate into lactate. It removes excess lactic acid from the muscle to create pyruvate. Next
Q: Discuss an example of a human gene and the function of the particular protein molecule it codes for?
A: A gene is composed of sequence of DNAs, and each gene is transcribed to form an mRNA. Exons are…
Q: Calculate the ATP yield from full oxidation of the fatty acids from a triglyceride with 3, 22 carbon…
A: Fatty acids are released in the digestion of triglycerides. These fatty acids undergo beta oxidation…
Q: what is the amount of cellulose in plant cell? describe the molecular structure of cellulose.
A: Introduction: Cellulose is the most abundant naturally occurring organic material on our Earth. It…
Q: How much ATP is produced from 1-stearoyl-2-arachidonyl-3-tridecanoyl glyceride? Show complete…
A: The given triglyceride molecule will be converted to stearic acid, arachidonic acid, tridecanoic…
Q: The following strand of DNA is transcribed: 5'-GACCTCCGAATGC-3' Write the sequence of the…
A: Transcription- formation of mRNA from DNA In , RNA A pairs with U G pairs with C
Q: What is the bacterial toxin that prevents the docking of synaptic vesicles at the neuromuscular…
A: Acetylcholine is the principal neurotransmitter in the neuromuscular junctions. Clostridium…
Q: Which of the following describe active transport or is an example of transport of a substance across…
A: The basic constituent of the cell membrane is that it is a phospholipid bilayer. The different kinds…
Q: Which of the following is an aldo-tetrose?* НО H НО Н Н OH -OH H -OH -ОН н OH CH2OH CH₂OH (a) Н Н НО…
A: Tetroses are monosacharide sugars that contain 4 carbon atoms. Aldoses are the sugars that contain…
Q: An intermediate of the citric acid cycle that undergoes reductive amination with glutamine as…
A: Citric acid cycle is the second stage of cellular respiration that occurs in mitochondrial matrix…
Q: Where in cells does the TCA cycle occur? a. Mitochondrion matrix b. Mitochondrion intermembrane…
A: Introduction: TCA (tricarboylic acid cycle) is a cycle which takes place in eukaryotes. In this…
Q: What do COX enzymes synthesise
A: COX : Cyclooxygenase or Prostaglandine endoperoxide synthase , It is a bifunctional enzyme produce…
Q: Treatment of a polypeptide with 2-mercaptoethanol yields two polypeptides 1.…
A: Given that treatment of a polypetide with 2 mercaptoethanol yielded 2 polypeptides: 1.…
Q: Procedure Crude extract GFC IEX Volume (mL) 120 20 10 Protein Total content protein (mg/mL) (mg) 20…
A: Since you have asked a question with multiple subparts, we will answer first three subparts for you.…
Q: what is the purpose of this experiment Effect of Temperature on the Hydrolysis of Starc
A: Introduction: Enzymes are proteins that act as biological catalysts to fasten the rate of the…
Q: Cancer stem cells (CSCs) are cancer cells (found within tumors or hematological cancers) that…
A: Cancer stem cells are the ones that are ones that have the ability to self renew malignant as well…
Q: Name the monomers for all the macromolecules in Test Tubes 1-5 in Jenny's experiment. Benedict's…
A: Living organisms are constituted of four types of biological macromolecules nucleic acids, proteins,…
Q: How many total moles of ATP are created in a cell with an ATP synthase with 8 c subunits for every…
A: Glucose is broken down into 2 molecules of pyruvate through glycolysis in the cytoplasm. Pyruvate is…
Q: What is the committed step in the synthesis of nucleotides? Synthesis of phosphoribosylpyrophosphate…
A: Nucleotide synthesis occurs by two different processes from purine Nucleotide synthesis and…
Q: Draw the peptide PVLED and determine the following: Isoelectric point, pI The net charge at pH =…
A: The given peptide is composed of proline, valine, leucine, glutamic acid, and aspartic acid. The…
Q: During ketosis brought on by a ketogenic diet, liver gluconeogenesis rates are high
A: Ketosis is a process when body starts burning the fats for energy due to insufficient amount of…
Q: Arachidonic acid (omega-6 20:4) is an essential fatty acid O True O False
A: Animals cannot synthesize certain fatty acids & in order to survive such fatty acids must be…
Q: Identify the a-carbon of aminolevulinic acid.
A: Carbon atoms are named from one end of an organic compound. The carbon atom with the substituent…
Q: Which of the following is true about the phosphorylation of proteins? A. Proteins are usually…
A: Protein phosphorylation is a mechanism that helps regulate proteins' function as well as transmit…
Q: A protein was recently discovered to be located in the nucleus. However, it is uncertain whether…
A: The most important and basic knowledge that we should remember here in-order to understand the…
Q: In the given structure below, 1. What protein was used as the template for modelling the structure…
A: the mRNA sequence is used as a template to assemble in order the chain of amino acids that form…
Q: Which of the sugars in the following figure is/are D sugars? Choose all correct answers. CHO CHO CHO…
A: First question: D-configuration refers to any chemicals that can be linked to (+)-glyceraldehyde…
Q: sing equilibrium argument, why does Km apparently increase, decrease or stay the same in…
A: Inhibition in biochemistry occurs in different enzymes. Inhibition of enzymes means blocking or…
Q: Which of the following are characteristics of catabolic metabolic pathways? (Choose all correct…
A: Metabolic pathways are of two types. They are Catabolic pathways in which larger compounds are…
Q: Which of the following is NOT a regulatory mechanism for catabolism and anabolism? Phosphorylation…
A: Metabolism is a series of interconnected chemical reactions occurring within a cell. Metabolic…
Q: Even when a gene is available and its sequence of nucleotides is known, chemical studies of the…
A: Proteins are polymers of amino acids which is translated from the mRNA. Gene (DNA) is transcribed…
Q: Consider the mRNA sequence below. Assume that the following mRNA segment has been translated.…
A: Given mRNA sequence is 5'-GCAAGUCUUAAU-3'. Ans 1. Three consecutive nucleotide codons translate into…
Q: Question #5 5A. Draw a triglyceride with one polyunsaturated fatty acid acid (12 carbons), one…
A: Lipid are actually the cellular components that form insoluble part of cell having large diversity…
Q: When comparing sugar sources HFCS and sucrose, current thinking about them is: O the two sources are…
A: Carbohydrates or carbs are maconutrient consisting of Carbon, hydrogen and oxygen atoms. In nature…
Q: 1. Define digestion. 2. Briefly outline the passage of food through the digestive tract.
A: Digestion is the process of breakdown on food in smaller particles which can be easily absorbed.…
Q: Which of the following secondary structures would you expect to find on the surface of a globular…
A: Proteins are composed of amino acids. They are linked together by peptide linkages. Proteins have…
Q: Avitaminosis can be caused by: O drinking red wine, but not beer O long bouts of binge gambling O…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: The mu receptor is directly activated by: O morphine O methamphetamine O nicotine O LSD
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Two proteins of different molecular weight (mw) are mixed and need to be separated. When eluted…
A: Gel filtration chromatography/Size exclusion chromatography- It uses porous beads having defined…
Q: on binds to heme with what are known as ________ bonds. a. ionic b. coordinate c. covalent d.…
A: Heme is a molecule that consists of an organic ring structure that is complex in nature. This ring…
Q: Explain how living organisms may use the differences between fatty acid synthesis and degradative…
A: Fatty acids consist of hydrocarbon chain with 4-26 Carbon atoms along with carboxylic acid group.…
Q: 1/[S] The figure is a Lineweaver-Burk plot. Which of the following is equal to the x- intercept in a…
A: Lineweaver Burk plot : Graphical representation of enzyme kinetics. X-axis : reciprocal of…
Q: eals and whales have flippers and flukes that have no blubber and are very poorly insulated. How is…
A: Introduction: Thermal conductivity is the transfer of heat from one part of a body to another when…
Q: Select the molecules that contains sphingosine. Molecule C phosphatidylcholine Molecule B Molecule A…
A: Phospholipids are compound lipids composed of fatty acids, alcohol, and a phosphate group.…
Q: Complete the pathway below by writing the intermediate (I) name, pathway name (P) and enzyme (E)…
A: Pyruvate molecules produced as the end product of the glycolytic pathway enter into the citric acid…
Q: Question #12 An actively respiring bacterial culture is supplied with pyruvate labeled on the methyl…
A: Citric acid cycle (Krebs cycle or TCA cycle) is one of the most important and central pathways in…
Q: The base that is circled in red could be adenine thymine guanine None of the provided answer choices…
A: The molecular basis of heredity is DNA. It can be thought of as a genetic information reserve bank.…
Q: Which of the following mutagens can substitute bases in DNA because of structural similarity?…
A: A mutagen is defined as any physical or chemical substance that can cause a mutation by altering an…
Q: Which ion concentration relationship is true when a neuron is at rest? (Select all that apply) More…
A: When a neuron is not sending a signal it is at 'rest'. During the rest state, all the voltage-gated…
Q: 1 Chemistry of Life: Biomol Which of the following is NOT a carbon based molecule. O nucleotide O…
A: Introduction: Biomolecules are molecules of compounds that are needed for life. They occur naturally…
Q: Explain in detail the condensation reactions to form Maltose and Sucrose from their monosaccharides.
A: Sugars are simple carbohydrates which are classified based on the number of monomeric units present…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Assuming that the glycerol 3-phosphate shuttle is operative, a complete oxidation of three molecules of glucose (by a eukaryotic cell) into carbon dioxide and water would produce approximately ATP molecules via oxidative phosphorylation only. (Consider NADH = 2.5 ATP and FADH2 = 1.5 ATP)Arsenate can replace inorganic phosphate in the reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase, causing glyceraldehyde-3-phosphate to be directly converted to 3-phosphoglycerate(NADH is still formed). Which of the following is absolutely true in case of arsenate poisoning -Glycolysis will stop - Glycolysis will still proceed with no net ATP gain - Glycolysis will not generate any form of energy - Glycolysis will still proceed, but with a net consumption of ATP - Glycolysis will proceed with lactate as end productThe conversion of glyceraldehyde-3-phosphate into 1,3-bisphosphoglycerate reduces NAD+ to NADH. Under anaerobic conditions, how is NADH oxidized back to allow for continuing glycolysis? (name the compounds involved in the reaction besides NADH and their draw structures)
- Which of the following is higher during high levels of glutathione reductase and NADP? SH A но (GSH) OH NH2 NH2 HO OH ;-CH-CH2-CH2-C-NH-CH–ċ–NH–CH2- CH2 В (GSSG) CH2 -CH-CH;-CH2=C-NH–C NH-CH–Ç-NH-CH2-C HO OH NH2During periods of intense physical exercise, the demand for ATP in muscle tissue increases dramatically. L-lactic acid fermentation accounts for almost all of the ATP production in rabbit leg muscle and turkey flight muscle, respectively. A pair of processes, phosphoglycerate kinase and pyruvate kinase, are involved in the formation of ATP during the payout phase of glycolysis. Assume that the enzyme lactate dehydrogenase is absent from skeletal muscle. Could it withstand rigorous physical activity, that is, could it create large amounts of ATP at a rapid pace via the process of glycolysis? Explain.Assuming all the NADH+H+ and FADH2 are used for oxidative phosphorylation, how many net ATP are made from 1 molecule of glucose? (hint: don’t forget to also include substrate level phosphorylation)
- A specialized lysine-linked co-enzyme often participates in the transfer of carbon fragments within an enzyme complex. Which group of three enzymes below make use of lysine-linked co-enztmes. Pyruvate dehydrogenase complex, a-Ketoglutarate dehydrogenase complex, NADH-Q oxidoreductase Pyruvate dehydrogenase complex, Succinate-Q oxidoreductase, Pyruvate carboxylase Pyruvate dehydrogenase complex, a-Ketoglutarate dehydrogenase complex, Pyruvate carboxylase Pyruvate dehydrogenase complex, Succinate-Q oxidoreductase, NADH-Qoxidoreductase Coordinate regulation occurs when different metabolic pathways are impact by a common compound. Which molecules below are compounds of coordinated regulation? Acety-CoA Molecular oxygen ATP NADHI'm confused about glycolysis and gluconeogenesis. Question: What is the function of glyceraldehyde 3-phosphate dehydrogenase in gluconeogenesis? Would the answer be -> Oxidation of NADH and release of an ADP from glyceraldehyde 3-phosphate or -> Oxidation of NADH and release of phosphate from glyceraldehyde 3-phosphate or -> Oxidation of NADH and release of phosphate from 1,3 bisphosphoglycerateThe transformation of glucose to lactate in myocytes releases only about 7% of the free energy released when glucose is completely oxidized to CO2 and H2O. Does this mean that anaerobic glycolysis in muscle is a wasteful use of glucose? Explain.
- Which of the following conditions is most likely to force a muscle cell to metabolize glucose anaerobically(fermentation) under normal oxygenation ? - Glyceraldehyde-3-phosphate dehydrogenase deficiency - Lactate dehydrogenase deficiency -Pyruvate kinase deficiency -Aldolase deficiency - Cytososic Glycerol-3-phosphate dehydrogenase deficiencyUnder anaerobic conditions, pyruvate will be converted to lactic acid. Why does this occur? To convert NADH to NAD* to feed back into glycolysis To supply the glycolysis reaction glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate with needed electrons in the form of NADH Because lactic acid can be converted to glucose to feed back into glycolysis Because lactic acid is needed to resupply glycolysis with electrons OThe glycolytic enzymes hexokinase and glucokinase (in human liver cells) catalyze the conversion of: 1,3-bisphosphoglycerate into 3-phosphoglycerate (producing ATP) glyceraldehyde-3-phosphate into 1,3-bisphosphoglycerate (producing NADH) phosphoenolpyruvate into pyruvate (producing ATP) fructose-6-phosphate into fructose-1,6-bisphosphate (consuming ATP) glucose into glucose-6-phosphate (consuming ATP) Which of the following glycolytic enzymes must consume ATP during phosphorylation of its preferred substrate molecule? phosphoglycerate mutase succinate dehydrogenase phosphoglycerate kinase phosphofructokinase pyruvate kinase