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

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

Answer :

(d) CO2 + H2O.
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Related questions

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.

Into which of the following acids is glucose broken down in the first stage of carbohydrate metabolism? Is it: a) pyruvic acid (pie-rue-vick acid) b) lactic acid c) hydrochloric acid d) citric acid

Description : Into which of the following acids is glucose broken down in the first stage of carbohydrate metabolism? Is it: a) pyruvic acid (pie-rue-vick acid) b) lactic acid c) hydrochloric acid d) citric acid

Last Answer : ANSWER: A -- PYRUVIC ACID 

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

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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

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Last Answer : fermentation

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

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

Last Answer : answer:

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 starting carbon substance that enters the Krebs citric acid cycle?

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

Last Answer : What is the answer ?

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.

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

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Description : Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct? (a) Yeast – Statins (b) Acetobacter aceti – Acetic acid (c) Clostridium butylicum – Lactic acid (d) Aspergillus niger – Citric acid

Last Answer : (c) Clostridium butylicum – Lactic acid

Concentration of pyruvic acid and lactic acid in blood is increased due to deficiency of the vitamin (A) Thiamin (B) Riboflavin (C) Niacin (D) Pantothenic acid

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Last Answer : Answer : A

The oxidation of lactic acid to pyruvic acid requires the following vitamin derivative as the hydrogen carrier. (A) Lithium pyrophosphate (B) Coenyzme A (C) NAD+ (D) FMN

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Last Answer : C

Which one of the following chemicals is associated with muscle fatigue? (1) Uric acid (2) Acetic acid (3) Pyruvic acid (4) Lactic acid

Description : Which one of the following chemicals is associated with muscle fatigue? (1) Uric acid (2) Acetic acid (3) Pyruvic acid (4) Lactic acid

Last Answer : (4) Lactic acid Explanation: Muscle fatigue refers to the decline in muscle force generated over sustained periods of activity. Intracellular acidosis due mainly to lactic acid accumulation has ... leads to increased intracellular hydrogen ion (H+) concentration that leads to a weaker contraction.

Concentration of pyruvic acid and lactic acid in blood is increased due to deficiency of the vitamin (A) Thiamin (B) Riboflavin (C) Niacin (D) Pantothenic acid

Description : Concentration of pyruvic acid and lactic acid in blood is increased due to deficiency of the vitamin (A) Thiamin (B) Riboflavin (C) Niacin (D) Pantothenic acid

Last Answer : (A) Thiamin

When you do strenuous exercise, oxygen is used up rapidly. What substance is formed. a) pyruvic acid(pron: pie-ROO-vik) b) lactic acid c) glucose d) alcohol

Description : When you do strenuous exercise, oxygen is used up rapidly. What substance is formed. a) pyruvic acid(pron: pie-ROO-vik) b) lactic acid c) glucose d) alcohol

Last Answer : ANSWER: B -- LACTIC ACID

Which one of the following chemicals is associated with muscle fatigue? (1) Uric acid (2) Acetic acid (3) Pyruvic acid (4) Lactic acid

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Last Answer : Lactic acid

Muscle fatigue is caused by the accumulation of : (1) Pyruvic acid (2) Lactic acid (3) Oxalacetic acid (4) Uric acid

Description : Muscle fatigue is caused by the accumulation of : (1) Pyruvic acid (2) Lactic acid (3) Oxalacetic acid (4) Uric acid

Last Answer : Lactic acid

All the following are produced during the citric acid cycle except: a. CO2. b. 02. c. ATP. d. NADH.

Description : All the following are produced during the citric acid cycle except: a. CO2. b. 02. c. ATP. d. NADH.

Last Answer : a. CO2.

What is the product of glycolysis? a. pyruvate and 2 ATPs b. AcetylCoA and 4 ATPs c. CO2 and H20 and 36 ATPs d. pyruvic acid and 6 ATPs

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Last Answer : C

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Which acid is present in lemon – (1) malic acid (2) citric acid (3) lactic acid (4) tartaric acid

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Description : Sweat contains water and ______. (1) Citric acid (2) Lactic acid (3) Salt (4) Vinegar

Last Answer : (3) Salt Explanation: Sweat contains mainly water. It also contains minerals, lactate, and urea. It also contains a smaller amount of sodium chloride (main component of ordinary table salt).

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Description : Sour milk contains – (1) acetic acid (2) tartaric acid (3) citric acid (4) lactic acid

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Milk tastes sour when it is left in open for some time. This happens due to the formation of (1) Lactic acid (2) Citric acid (3) Acetic acid (4) Carbonic acid

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Vinegar made by fermentation from cane sugar contains – (1) palmitic acid (2) lactic acid (3) citric acid (4) acetic acid

Description : Vinegar made by fermentation from cane sugar contains – (1) palmitic acid (2) lactic acid (3) citric acid (4) acetic acid

Last Answer : (4) acetic acid Explanation: Vinegar is a liquid substance consisting mainly of acetic acid (CH3CO2H) and water, the acetic acid being produced through the fermentation of ethanol by acetic ... are still promoted today. Commercial vinegar is produced either by fast or slow fermentation processes.

Milk tastes sour when kept in the open for sometime due to the formation of – (1) lactic acid (2) citric acid (3) acetic acid (4) carbonic acid

Description : Milk tastes sour when kept in the open for sometime due to the formation of – (1) lactic acid (2) citric acid (3) acetic acid (4) carbonic acid

Last Answer : (1) lactic acid Explanation: Like many other things, milk contains bacteria, Milk also naturally contains a kind of sugar known as "lactose." The bacteria that live in milk get energy from this ... sugars to reproduce, they change it from "lactose sugar" into "lactic acid," which tastes sour.

Abscission in fruit occur due to: a. Excessive abscissic acid b. Excessive Ghrtamic acid c. Excessive Lactic acid d. Excessive Citric acid

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Last Answer : Excessive abscissic acid

Acid present in Tomato is (A)Lactic acid (B) Tartaric acid (C) Oxalic acid (D) Citric acid

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Last Answer : (C) Oxalic acid

Nettle sting is a natural source of which acid? a) Methanoic acid b) Lactic acid c) Citric acid d) Tartaric acid

Description : Nettle sting is a natural source of which acid? a) Methanoic acid b) Lactic acid c) Citric acid d) Tartaric acid

Last Answer : a) Methanoic acid

73. Yeast is used in the production of (1) Cheese and butter (2) Citric acid and lactic acid (3) Lipase and pectinase (4) Bread and ****

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Last Answer : Bread and beer

Sweat contains water and _______. (1) Citric acid (2) Lactic acid (3) Salt (4) Vinegar

Description : Sweat contains water and _______. (1) Citric acid (2) Lactic acid (3) Salt (4) Vinegar

Last Answer : Salt

Which of these acids is not organic in origin? (1) Lactic acid (2) Sulphuric acid (3) Citric acid (4) Oxalic acid

Description : Which of these acids is not organic in origin? (1) Lactic acid (2) Sulphuric acid (3) Citric acid (4) Oxalic acid

Last Answer : Sulphuric acid

Vinegar made by fermentation from cane sugar contains (1) palmitic acid (2) lactic acid (3) citric acid (4) acetic acid

Description : Vinegar made by fermentation from cane sugar contains (1) palmitic acid (2) lactic acid (3) citric acid (4) acetic acid

Last Answer : acetic acid

Sour milk contains (1) acetic acid (2) tartaric acid (3) citric acid (4) lactic acid

Description : Sour milk contains (1) acetic acid (2) tartaric acid (3) citric acid (4) lactic acid 

Last Answer :  lactic acid

Milk tastes sour when kept in the open for sometime due to the formation of (1) lactic acid (2) citric acid (3) acetic acid (4) carbonic acid

Description : Milk tastes sour when kept in the open for sometime due to the formation of (1) lactic acid (2) citric acid (3) acetic acid (4) carbonic acid

Last Answer :  lactic acid

O2 released in the process of photosynthesis comes from (a) CO2 (b) Water (c) Sugar (d) Pyruvic acid

Description : O2 released in the process of photosynthesis comes from (a) CO2 (b) Water (c) Sugar (d) Pyruvic acid

Last Answer : Ans:(b)

In sugarcane plant 14CO2 is fixed to malic acid, in which the enzyme that fixes CO2 is (a) ribulose biphosphate carboxylase (b) phosphoenol pyruvic acid carboxylase (c) ribulose phosphate kinase (d) fructose phosphatase.

Description : In sugarcane plant 14CO2 is fixed to malic acid, in which the enzyme that fixes CO2 is (a) ribulose biphosphate carboxylase (b) phosphoenol pyruvic acid carboxylase (c) ribulose phosphate kinase (d) fructose phosphatase.

Last Answer : (b) phosphoenol pyruvic acid carboxylase

During an early step of respiration, glucose is converted into two identical molecules of: a) CO2 b) ATP c) pyruvic acid(pron: pie-ROO-vik) d) chlorophyll

Description : During an early step of respiration, glucose is converted into two identical molecules of: a) CO2 b) ATP c) pyruvic acid(pron: pie-ROO-vik) d) chlorophyll

Last Answer : ANSWER: C -- PYRUVIC ACID

End product of glycolysis is (a) acetyl CoA (b) pyruvic acid (c) glucose 1-phosphate (d) fructose 1-phosphate.

Description : End product of glycolysis is (a) acetyl CoA (b) pyruvic acid (c) glucose 1-phosphate (d) fructose 1-phosphate.

Last Answer : (b) pyruvic acid

This early atmosphere was rich in CO2 and H2O. How did oxygen enter our atmosphere? (a) Meteorites. (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen. (c) Volcanic emissions. (d) Methanogenic bacteria.

Description : This early atmosphere was rich in CO2 and H2O. How did oxygen enter our atmosphere? (a) Meteorites. (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen. (c) Volcanic emissions. (d) Methanogenic bacteria.

Last Answer : (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen.

What is the end product of glycolysis (fermentation) in chordates (pron: KOR-dates) when there is INSUFFICIENT oxygen? a) lactic acid b) hydrogen c) sugar d) alcohol

Description : What is the end product of glycolysis (fermentation) in chordates (pron: KOR-dates) when there is INSUFFICIENT oxygen? a) lactic acid b) hydrogen c) sugar d) alcohol

Last Answer : ANSWER: A -- LACTIC ACID

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

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

Before pyruvic acid enters the TCA cycle it must be converted to (A) Acetyl CoA (B) Lactate (C) α-ketoglutarate (D) Citrate

Description : Before pyruvic acid enters the TCA cycle it must be converted to (A) Acetyl CoA (B) Lactate (C) α-ketoglutarate (D) Citrate

Last Answer : A

Tricarboxylic acid cycle to be continuous requires the regeneration of (A) Pyruvic acid (B) oxaloacetic acid (C) α-oxoglutaric acid (D) Malic acid

Description : Tricarboxylic acid cycle to be continuous requires the regeneration of (A) Pyruvic acid (B) oxaloacetic acid (C) α-oxoglutaric acid (D) Malic acid

Last Answer : B