Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • The Molecular change in Krebs cycle is __________.Option: 1 oxaloacetate to oxaloacetate(4C)  

The Molecular change in Krebs cycle is __________.

Option: 1

oxaloacetate to oxaloacetate(4C)
 


Option: 2

oxidation of NADH and FADH2 to build ATP and water molecules


Option: 3

Conversion of pyruvates(3C) to acetyl group (2C)

 


Option: 4

Conversion of glucose(6C) to 2 pyruvates (3C)


Answers (1)

best_answer

The correct answer is Option 1) oxaloacetate to oxaloacetate (4C).

In the Krebs cycle (also known as the citric acid cycle or TCA cycle), the initial and final molecule is oxaloacetate. Oxaloacetate, which is a 4-carbon molecule, is initially combined with acetyl-CoA (a 2-carbon molecule) to form citrate (a 6-carbon molecule). The subsequent reactions in the cycle involve a series of transformations that ultimately regenerate oxaloacetate.

During these reactions, molecules such as citrate, isocitrate, α-ketoglutarate, succinyl-CoA, succinate, fumarate, and malate are formed and interconverted. However, at the end of the cycle, oxaloacetate is regenerated, allowing the cycle to continue.

Therefore, Option 1) oxaloacetate to oxaloacetate (4C) is the correct answer, as it represents the molecular change that occurs in the Krebs cycle.

Posted by

Deependra Verma

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

17 left in NEET toppers list 2024 as physics question strips 44 of top ranks
anam-khan

NEET Revised Result 2024: Joy and disappointment as all-India ranks change by thousands of places
anam-khan

NEET UG 2024 cut-offs drop for all categories; final scorecard out at neet.ntaonline.in

Latest Question