GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
J.B. Sumner isolated first enzyme from Jackbeans as-
A
renin
B
trypsin
C
urease
D
amylase
Explanation: 

Detailed explanation-1: -Jack bean (Canavalia ensiformis) urease (JBU) was the first enzyme to be crystallized, a feat that was accomplished by James B. Sumner in 1926 and for which he was awarded the Nobel Prize in chemistry in 1946. Although JBU was the first protein to be crystallized, its structure has yet to be determined.

Detailed explanation-2: -This enzyme was first isolated and purified in the form of crystals: Urease.

Detailed explanation-3: -Urease, the First Crystalline Enzyme and the Proof That Enzymes Are Proteins: the Work of James B. Sumner.

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