✅ (c) Urease: • First enzyme crystallized by James B. Sumner in 1926 from jack bean. • This proved that enzymes are proteins, a major discovery in biochemistry. • Urease breaks urea into ammonia and CO₂.
❌ (a) Lipase, (b) Zymase: • Important enzymes, but not first to be crystallized.
❌ (d) None of these: • Incorrect as urease was the first.
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45 Mins English English100 Questions100 Marks120 Mins English English100 Questions100 Marks120 Mins EnglishThe WHO standard of drinking water for nitrate is
Emissivity of a black body is
Environmental Protection Act was enacted in the year
The spectral bands used in Greenness Vegetation Index are (A) Red (B) Blue (C) Green (D) NIR (E) MIR
Choose the correct answer from the options given below:
The formula for Ethane is
Deficiency of Vitamin A causes
The building units of oligosaccharides and polysaccharides are
The consumption of water containing high levels of nitrate–N can lead to
The common table sugar is
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