교과서 질문
What are the two primary functions of the electron-transport chain?
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Ch.21 The Generation of Biochemical Energy
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
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TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187당신이 사용하는 게 아니라요?교과서 변경
21장, 문제 56
How many NADH and how many FADH2 molecules are formed in the citric acid cycle?
검증된 단계별 안내1
Understand the citric acid cycle: The citric acid cycle (also known as the Krebs cycle or TCA cycle) is a series of chemical reactions used by aerobic organisms to generate energy through the oxidation of acetyl-CoA. It also produces electron carriers like NADH and FADH2, which are used in the electron transport chain to produce ATP.
Identify the key steps in the citric acid cycle where NADH is produced: NADH is formed during three specific reactions in the cycle. These occur during the oxidation of isocitrate to α-ketoglutarate, the oxidation of α-ketoglutarate to succinyl-CoA, and the oxidation of malate to oxaloacetate.
Identify the step in the citric acid cycle where FADH2 is produced: FADH2 is formed during the oxidation of succinate to fumarate, which is catalyzed by the enzyme succinate dehydrogenase.
Count the number of NADH molecules produced per turn of the cycle: Since there are three reactions that produce NADH, one turn of the citric acid cycle generates three NADH molecules.
Count the number of FADH2 molecules produced per turn of the cycle: Since there is one reaction that produces FADH2, one turn of the citric acid cycle generates one FADH2 molecule.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Citric Acid Cycle
The citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions used by all aerobic organisms to generate energy. It occurs in the mitochondria and is a key component of cellular respiration, where acetyl-CoA is oxidized to produce energy carriers, including NADH and FADH2.
추천 영상:
가이드 코스
2:31
Citric Acid Cycle Summary Concept 12
NADH and FADH2
NADH and FADH2 are electron carriers produced during the citric acid cycle. NADH is generated from the reduction of NAD+ during specific reactions, while FADH2 is produced from the reduction of FAD. Both molecules play a crucial role in the electron transport chain, where they help generate ATP.
추천 영상:
가이드 코스
2:27Citric Acid Cycle Summary Concept 13
Energy Yield
The energy yield from the citric acid cycle is significant, as it produces three NADH and one FADH2 per turn of the cycle. Since each NADH can generate approximately 2.5 ATP and each FADH2 about 1.5 ATP during oxidative phosphorylation, understanding their production is essential for calculating the total energy output from glucose metabolism.
추천 영상:
가이드 코스
03:09Percent Yield
관련 실천
교과서 질문
Look at the eight steps of the citric acid cycle (Figure 21.8) and answer the following questions:
a. Which steps involve oxidation reactions?
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교과서 질문
Which reactions of the citric acid cycle transfer energy as FADH2?
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교과서 질문
Look at the eight steps of the citric acid cycle (Figure 21.8) and answer the following questions:
c. Which step or steps involve a hydration reaction?
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교과서 질문
Look at the eight steps of the citric acid cycle (Figure 21.8) and answer the following questions:
b. Which steps involve decarboxylation (loss of CO2)?
507
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교과서 질문
Which reactions of the citric acid cycle transfer energy as NADH?
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