Enzyme catalysts are highly specific. This property is called:
A. Optimum temperature
B. Substrate specificity
C. Denaturation
D. Inhibition
Answer: Option B
Solution (By JKExamLibrary)
Enzymes exhibit substrate specificity, meaning each enzyme catalyzes a particular reaction or acts on a specific substrate (lock-and-key model). For example, urease acts only on urea. This specificity is due to the unique shape of the active site. Denaturation is loss of structure, inhibition is blocking activity, optimum temperature is condition for maximum activity.
Explanation:
Alpha particles, being heavy and doubly charged, cause intense ionization over a short distance. They are least penetrating. Gamma has low ionization but high penetration.
Explanation:
DAP stands for Diammonium Phosphate, with the chemical formula (NH₄)₂HPO₄. It is a widely used phosphorus fertilizer that also supplies nitrogen. It is highly soluble and quickly releases nutrients into the soil, making it popular for starter fertilizers in agriculture.
Explanation:
Uranium (U) is a naturally occurring heavy metal that is radioactive. Its most common isotopes are U-238 and U-235. Aluminum, iron, and calcium are stable, non-radioactive elements under normal conditions, though they may have synthetic radioactive isotopes.
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