Nicotinamide adenine dinucleotide (NAD +) is made up of the base nicotinamide, ribose, and ADP. 18-2). NADPH converts glutathione disulfide into glutathione and diminishes reactive oxygen species (ROS) in the joint cells. b. oxygen. Cellular respiration in the absence of molecular oxygen is (a) photorespiration (b) glycolysis (c) EMP pathway (d) HMS pathway Answer: (b) glycolysis 2. What is NADP + /NADPH?. The inhibitory effect of low levels of NADP + is exacerbated by the fact that NADPH competes with NADP + in binding to the enzyme. Overall, the process of glycolysis produces a net gain of two pyruvate molecules, two ATP molecules, and two NADH molecules for the cell to use for energy. It accepts energized electrons released during some metabolic reactions. a. an energy input. However, NAD/NADH participate in a lot of reactions in the cell. Cellular Respiration Short Questions and Answers One mark questions with answers 1. Glycolysis occurs in the cytoplasm of the cell, with the products of glycolysis entering the mitochondria Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide, NADH, FADH2, and ATP or GTP. Two molecules of G-3-P are needed to produce one molecule of glucose. Reduced ROS production is associated with increased joint inflammation severity . Breakdown of carbohydrates (glucose) takes place in the body by glycolysis followed by tricarboxylic acid cycle (Kreb's cycle) resulting in the energy in the form of ATP. Almost every redox reaction in the cell uses NAD(H) or NADP(H) as a source/sink of electrons. The most important regulatory factor is the level of NADP +, the electron acceptor in the oxidation of glucose 6-phosphate to 6-phosphoglucono-δ-lactone. Either cellular respiration or ... Glycolysis requires. At the molecular level, pyridine nucleotides (NAD⁺ and NADP⁺ (oxidized forms) and NADH and NADPH (reduced forms) are made up of 2 mono nucleotides – adenosine monophosphate (AMP) & nicotinamide mono nucleotide (NMN) joined together through their phosphates. Of course, if there is not enough oxygen present, NADH is still produced, and in that case it is recycled in the process that produces lactic acid from pyruvate, the product of glycolysis. Glu cose can alternatively also undergo a different pathway to produce other products required by the cells. _____ 3. The products of glycolysis are 2 ATP, 2 NADH, and 2 pyruvic acid molecules. c. hours to produce many ATP molecules. When a hydrogen atom is added, NADP becomes charged and is renamed NADPH. The first phase of glycolysis requires energy, while the second phase completes the conversion to pyruvate and produces ATP and NADH for the cell to use for energy. b) Glycolysis requires NADP + c) In glycolysis, glucose is cleaved into two three-carbon products d) The end-product of glycolysis in red blood cells is pyruvate Which of the following acts as an electron carrier in cellular respiration? For every three molecules of C O 2 that enters the Calvin cycle, one molecule of the three carbon glyceraldehyde 3-phosphate (G3P) is produced. NADPH is an electron carrier. 21. Ribose is an important constituient of nucleotides and nucleic acids (see Chapters 13-17 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17).It is also part of the structure of two important coenzymes, NAD + and NADP + (Fig. NADP (nicotinamide adenine dinucleotide phosphate) (formula C 21 H 29 N 7 O 17 P 3) is a coenzyme that carries electrical energy used in cellular processes.It is a required cofactor for CYP-mediated biotransformation, and oxygen serves as a substrate. So no oxygen, and you’re stuck with what you get from glycolysis. The citric acid cycle initiates with (a) succinic acid (b) pyruvic acid (c) acetyl coenzyme A (d) fumaric acid Answer: (c) acetyl coenzyme A 3. Therefore, the Calvin cycle needs to make a total of 6 turns to produce two molecules of G-3-P. 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