What molecules are the main electron carriers of the Krebs cycle?

What molecules are the main electron carriers of the Krebs cycle?
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1 Answer

Answer :

NADH and FADH2
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Related questions

What molecule are the main electrons carriers of Krebs cycle?

Description : What molecule are the main electrons carriers of Krebs cycle?

Last Answer : NADH and FADH2

During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP? (a) Glycolysis (b) Krebs’ cycle (c) Conversion of pyruvic acid to acetyl CoA (d) Electron transport chain

Description : During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP? (a) Glycolysis (b) Krebs’ cycle (c) Conversion of pyruvic acid to acetyl CoA (d) Electron transport chain

Last Answer : (d) Electron transport chain

In addition of ATP what types of molecules are produced in the Krebs cycle?

Description : In addition of ATP what types of molecules are produced in the Krebs cycle?

Last Answer : Gtp,nadh2,fadh2,co2

Out of 36 ATP molecules produced per glucose molecule during respiration (a) 2 are produced outside glycolysis and 34 during respiratory chain (b) 2 are produced outside mitochondria and 34 inside mitochondria (c) 2 during glycolysis and 34 during Krebs’ cycle (d) all are formed inside mitochondria

Description : Out of 36 ATP molecules produced per glucose molecule during respiration (a) 2 are produced outside glycolysis and 34 during respiratory chain (b) 2 are produced outside mitochondria and 34 inside ... (c) 2 during glycolysis and 34 during Krebs' cycle (d) all are formed inside mitochondria

Last Answer : (b) 2 are produced outside mitochondria and 34 inside mitochondria

Out of 38 ATP molecules produced per glucose, 32 ATP molecules are formed from NADH/FADH2 in (a) respiratory chain (b) Krebs’ cycle (c) oxidative decarboxylation (d) EMP.

Description : Out of 38 ATP molecules produced per glucose, 32 ATP molecules are formed from NADH/FADH2 in (a) respiratory chain (b) Krebs’ cycle (c) oxidative decarboxylation (d) EMP.

Last Answer : (a) respiratory chain

The overall goal of glycolysis, Krebs’ cycle and the electron transport system is the formation of (a) ATP in one large oxidation reaction (b) sugars (c) nucleic acids (d) ATP in small stepwise units

Description : The overall goal of glycolysis, Krebs’ cycle and the electron transport system is the formation of (a) ATP in one large oxidation reaction (b) sugars (c) nucleic acids (d) ATP in small stepwise units

Last Answer : d) ATP in small stepwise units.

In Krebs’ cycle, the FAD precipitates as electron acceptor during the conversion of (a) fumaric acid to malic acid (b) succinic acid to fumaric acid (c) succinyl CoA to succinic acid (d) α-ketoglutarate to succinyl CoA.

Description : In Krebs’ cycle, the FAD precipitates as electron acceptor during the conversion of (a) fumaric acid to malic acid (b) succinic acid to fumaric acid (c) succinyl CoA to succinic acid (d) α-ketoglutarate to succinyl CoA.

Last Answer : (b) succinic acid to fumaric acid

What is the main function of the Krebs cycle? -Biology

Description : What is the main function of the Krebs cycle? -Biology

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Net gain of ATP of Krebs cycle and ETS. -Biology

Description : Net gain of ATP of Krebs cycle and ETS. -Biology

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Why Krebs Cycle is called as citric acid cycle? -Biology

Description : Why Krebs Cycle is called as citric acid cycle? -Biology

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Site of Krebs cycle and oxidative phosphorylation. -Biology

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Site of Krebs cycle in mitochondria. -Biology

Description : Site of Krebs cycle in mitochondria. -Biology

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What are the products of the Krebs cycle? -Biology

Description : What are the products of the Krebs cycle? -Biology

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Carbon components formed during Krebs cycle. -Biology

Description : Carbon components formed during Krebs cycle. -Biology

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Gateway of Krebs cycle? -Biology

Description : Gateway of Krebs cycle? -Biology

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Why is the Krebs cycle called the TCA cycle ?

Description : Why is the Krebs cycle called the TCA cycle ?

Last Answer : The first acid produced in the Krebs cycle is citric acid. Since citric acid contains three carboxylic (- COOH) radicals , the Krebs-cycle is called the TCA cycle or tri-carboxylic acid cycle.

Why is Krebs cycle called citric acid cycle ?

Description : Why is Krebs cycle called citric acid cycle ?

Last Answer : The first acid produced in the Krebs-cycle is 6 - carbon citric acid. Since the Krebs cycle begins with citric acid, the Krebs cycle is called the citric acid cycle.

What is the Krebs cycle ?

Description : What is the Krebs cycle ?

Last Answer : In the second stage of respiration, acetyl co-derived from pyruvic acid enters the mitochondria which produces various types of organic acids , carbon dioxide and water in a cycle called Krebs-cycle.

Where do the reactions of the Krebs cycle take place in the cell ?

Description : Where do the reactions of the Krebs cycle take place in the cell ?

Last Answer : Krebs cycle reactions occur in the mitochondria of the cell.

Where is the Krebs cycle ?

Last Answer : mitochondria.

Who discovered the Krebs cycle ?

Last Answer : The Krebs cycle was discovered by Sir Hans Krebs

$ Krebs cycle occurs in the matrix of mitochondria. ! ATP as is a respiratory enzyme.

Description : $ Krebs cycle occurs in the matrix of mitochondria. ! ATP as is a respiratory enzyme.

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Krebs cycle which is also called aerobic respiration require `O_(2)` supply.

Description : Krebs cycle which is also called aerobic respiration require `O_(2)` supply.

Last Answer : Krebs cycle which is also called aerobic respiration require `O_(2)` supply.

Krebs cycle which is also called aerobic respiration require `O_(2)` supply.

Description : Krebs cycle which is also called aerobic respiration require `O_(2)` supply.

Last Answer : Krebs cycle which is also called aerobic respiration require `O_(2)` supply.

How many ATP are made directly Krebs cycle?

Description : How many ATP are made directly Krebs cycle?

Last Answer : Need answer

Why does the Calvin cycle and the Krebs cycle are referred to as cycles of chemical reactions?

Description : Why does the Calvin cycle and the Krebs cycle are referred to as cycles of chemical reactions?

Last Answer : Need answer

What is the starting carbon substance that enters the Krebs citric acid cycle?

Description : What is the starting carbon substance that enters the Krebs citric acid cycle?

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Who is Krebs cycle researcher?

Description : Who is Krebs cycle researcher?

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The reaction of Kreb’s cycle which does not require cofactor of vitamin B group is (A) Citrate isocitrate (B) α -Ketoglutarate succinate (C) Malate oxaloacetate (D) Succinate fumarate

Description : The reaction of Kreb’s cycle which does not require cofactor of vitamin B group is (A) Citrate isocitrate (B) α -Ketoglutarate succinate (C) Malate oxaloacetate (D) Succinate fumarate

Last Answer : Answer : A

Insulin is a protein which controls (A) Blood clotting (B) Metabolic pathway (C) Digestion (D) Kreb’s cycle

Description : Insulin is a protein which controls (A) Blood clotting (B) Metabolic pathway (C) Digestion (D) Kreb’s cycle

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In the synthesis of 1 molecule of urea in the Kreb’s Henseleit cycle the number of AMPs formed is (A) 1 (B) 2 (C) 3 (D) 4

Description : In the synthesis of 1 molecule of urea in the Kreb’s Henseleit cycle the number of AMPs formed is (A) 1 (B) 2 (C) 3 (D) 4

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In the synthesis of 1 molecule of urea in the Kreb’s Hanseleit cycle, the number of ATPs required is (A) 1 (B) 2 (C) 3 (D) 4

Description : In the synthesis of 1 molecule of urea in the Kreb’s Hanseleit cycle, the number of ATPs required is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : Answer : C

Kreb’s cycle occurs in?

Description : Kreb’s cycle occurs in?

Last Answer : Mitochondria

Why is the Krebs cycle important in energy metabolism?

Description : Why is the Krebs cycle important in energy metabolism?

Last Answer : The Krebs cycle is essential for energy metabolism because electrons are given off at several places during the reactions of the cycle. At three different points of each cycle, pairs of electrons ... ATP molecules are in addition to the two ATP molecules resulting from the reactions of glycolysis.  

The following are true about the oxidation of glucose: a. glycolysis produces 3% of the energy ultimately obtained from glucose b. the first stage of glycolysis involves phosphorylation of glucose to 1,6-fructose biphosphate. c. glucose enters the Kreb's cycle as pyruvate d. all above

Description : The following are true about the oxidation of glucose: a. glycolysis produces 3% of the energy ultimately obtained from glucose b. the first stage of glycolysis involves phosphorylation of glucose to 1,6-fructose biphosphate. c. glucose enters the Kreb's cycle as pyruvate d. all above

Last Answer : all above

Enzymes involved in krebs cycle are localized in a. ribosomes b. mitochondria c. polysomes d. golgi bodies

Description : Enzymes involved in krebs cycle are localized in a. ribosomes b. mitochondria c. polysomes d. golgi bodies

Last Answer : mitochondria

In ureotelic animals, urea is formed by (a) Krebs’ cycle (b) EM pathway (c) Ornithine cycle (d) Cori cycle.

Description : In ureotelic animals, urea is formed by (a) Krebs’ cycle (b) EM pathway (c) Ornithine cycle (d) Cori cycle.

Last Answer : (c) Ornithine cycle

Link between glycolysis, Krebs’ cycle and β-oxidation of fatty acid or carbohydrate and fat metabolism is (a) oxaloacetic acid (b) succinic acid (c) citric acid (d) acetyl CoA.

Description : Link between glycolysis, Krebs’ cycle and β-oxidation of fatty acid or carbohydrate and fat metabolism is (a) oxaloacetic acid (b) succinic acid (c) citric acid (d) acetyl CoA.

Last Answer : (d) acetyl CoA.

Plants, but not animals, can convert fatty acids to sugars by a series of reactions called (a) photosynthesis (b) Kreb’s cycle (c) glycolysis (d) glyoxylate cycle.

Description : Plants, but not animals, can convert fatty acids to sugars by a series of reactions called (a) photosynthesis (b) Kreb’s cycle (c) glycolysis (d) glyoxylate cycle.

Last Answer : (d) glyoxylate cycle.

Connecting link between glycolysis and Krebs’ cycle before pyruvate entering Krebs’ cycle is changed to (a) oxaloacetate (b) PEP (c) pyruvate (d) acetyl CoA.

Description : Connecting link between glycolysis and Krebs’ cycle before pyruvate entering Krebs’ cycle is changed to (a) oxaloacetate (b) PEP (c) pyruvate (d) acetyl CoA.

Last Answer : (d) acetyl CoA.

End product of citric acid cycle/Krebs’ cycle is (a) citric acid (b) lactic acid (c) pyruvic acid (d) CO2 + H2O

Description : End product of citric acid cycle/Krebs’ cycle is (a) citric acid (b) lactic acid (c) pyruvic acid (d) CO2 + H2O

Last Answer : (d) CO2 + H2O.

Which of the following is the key intermediate compound linking glycolysis to the Krebs’ cycle? (a) Malic acid (b) Acetyl CoA (c) NADH (d) ATP

Description : Which of the following is the key intermediate compound linking glycolysis to the Krebs’ cycle? (a) Malic acid (b) Acetyl CoA (c) NADH (d) ATP

Last Answer : (b) Acetyl CoA

In which one of the following do the two names refer to one and the same thing ? (a) Krebs’ cycle and Calvin cycle (b) Tricarboxylic acid cycle and citric acid cycle (c) Citric acid cycle and Calvin cycle (d) Tricarboxylic acid cycle and urea cycle

Description : In which one of the following do the two names refer to one and the same thing ? (a) Krebs’ cycle and Calvin cycle (b) Tricarboxylic acid cycle and citric acid cycle (c) Citric acid cycle and Calvin cycle (d) Tricarboxylic acid cycle and urea cycle

Last Answer : (b) Tricarboxylic acid cycle and citric acid cycle

Which statement is wrong for Krebs’ cycle? (a) There is one point in the cycle where FAD+ is reduced to FADH2. (b) During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised. (c) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid. (d) There are three points in the cycle where NAD+ is reduced to NADH + H+.

Description : Which statement is wrong for Krebs' cycle? (a) There is one point in the cycle where FAD+ is reduced to FADH2. (b) During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised. (c ... citric acid. (d) There are three points in the cycle where NAD+ is reduced to NADH + H+.

Last Answer : (c) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid.

The first phase in the breakdown of glucose, in animal cell, is (a) fermentation (b) Krebs’ cycle (c) glycolysis (d) ETS.

Description : The first phase in the breakdown of glucose, in animal cell, is (a) fermentation (b) Krebs’ cycle (c) glycolysis (d) ETS.

Last Answer : (c) glycolysis

Yeast play an important role in the alcohol industry, converting pyruvic acid into carbondioxide and ethyl alcohol by the process of A- glycolysis B- respiration C- fermentationD- Krebs cycle

Description : Yeast play an important role in the alcohol industry, converting pyruvic acid into carbondioxide and ethyl alcohol by the process of A- glycolysis B- respiration C- fermentation D- Krebs cycle

Last Answer : fermentation

TCA also known as a. Kreb’s Cycle b. Glycolysis c. Acetolysis d. None of the above

Description : TCA also known as a. Kreb’s Cycle b. Glycolysis c. Acetolysis d. None of the above

Last Answer : a. Kreb’s Cycle

Biological activity of tocopherols has been attributed in part to their action as (A) Antioxidant (B) Anticoagulents (C) Provitamin (D) Carriers in electron transport system

Description : Biological activity of tocopherols has been attributed in part to their action as (A) Antioxidant (B) Anticoagulents (C) Provitamin (D) Carriers in electron transport system

Last Answer : Answer : B

Which energy carriers are produced by the Calvin cycle?

Description : Which energy carriers are produced by the Calvin cycle?

Last Answer : NADP+, ADP, and glucose(APEX)

Is it true that reactive oxygen species (ROS) have only one electron and that causes them to be unstable and thus try to grab an electron from other molecules?

Description : Is it true that reactive oxygen species (ROS) have only one electron and that causes them to be unstable and thus try to grab an electron from other molecules?

Last Answer : answer:You're close, but it's not that they have one electron. Usually they need one electron (you can have species that need more, but one is more typical). The Reactive' bit comes from the ... unpaired electron, by the way). However, 7 is the most common and tends to have the higher reactivity.