Who discovered that biological chemical energy transfers are regulated by specific high-energy nucleotide molecules called ATP? MCQ with Answer and Explanation

Question

Who discovered that biological chemical energy transfers are regulated by specific high-energy nucleotide molecules called ATP?

A. Hans Krebs

B. Fritz Lipmann

C. Karl Lohmann

D. Eduard Buchner

Answer: Option C

Solution (By JKSSB Mock Tests)

Karl Lohmann isolated Adenosine Triphosphate from muscle tissues in 1929, identifying it as the universal intracellular energy currency.

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The invention of the highly flexible modern structural material known as Synthetic Rubber (Buna) was developed where?

A. England

B. United States

C. Russia

D. Germany by IG Farben laboratories

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Correct Answer: Option D

Explanation:
German chemists synthesized sodium-catalyzed butadiene copolymers (Buna-S and Buna-N) to secure alternative industrial resources.

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Question #2

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Who discovered the presence of the cosmic entity known as the black hole through mathematical solutions to General Relativity equations?

A. Stephen Hawking

B. Subrahmanyan Chandrasekhar

C. Karl Schwarzschild

D. Albert Einstein

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Correct Answer: Option C

Explanation:
Karl Schwarzschild derived the exact solution for spherical non-rotating point mass objects in 1915, outlining the event horizon radius.

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Question #3

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The invention of the barcode system for scanning retail merchandise was patented by whom?

A. Masahiro Hara

B. Douglas Engelbart

C. Alan Turing

D. Norman Joseph Woodland and Bernard Silver

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Correct Answer: Option D

Explanation:
Woodland and Silver patented the bullseye and linear barcode design in 1952, inspired by Morse code tracking patterns.

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