GATE2017-18

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GATE2017-1
An enzyme catalyzes a reaction by decreasing the energy of the substrate. decreasing the activation energy of the reaction. decreasing product stability. increasing the activation barrier of the reaction.

An enzyme catalyzes a reaction by decreasing the energy of the substrate. decreasing the activation energy of the reaction. decreasing product stability. increasing the activation barrier of the reaction.

asked Mar 26, 2018 in Others Milicevic3306 7.9k points

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GATE2017-2
Natural proteins are composed primarily of $20$ $\alpha$-amino acids. Which one of the following statements is true for any of these amino acids in a solution of pH $1.5$? Only the amino group is ionized. Only the carboxylic acid group is ionized. Both amino and carboxylic acid groups are ionized. Both amino and carboxylic acid groups are neutral.

Natural proteins are composed primarily of $20$ $\alpha$-amino acids. Which one of the following statements is true for any of these amino acids in a solution of pH $1.5$? Only the amino group is ionized. Only the carboxylic acid group is ionized. Both amino and carboxylic acid groups are ionized. Both amino and carboxylic acid groups are neutral.

asked Mar 26, 2018 in Others Milicevic3306 7.9k points

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GATE2017-3
Which one of the following organisms is an indicator of fecal contamination? $\textit{Escherichia coli}$ $\textit{Streptococcus lactis}$ $\textit{Bacillus subtilis}$ $\textit{Lactobacillus acidophilus}$

Which one of the following organisms is an indicator of fecal contamination? $\textit{Escherichia coli}$ $\textit{Streptococcus lactis}$ $\textit{Bacillus subtilis}$ $\textit{Lactobacillus acidophilus}$

asked Mar 26, 2018 in Others Milicevic3306 7.9k points

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GATE2017-5
In a thin layer chromatography experiment using a silica gel plate, a compound showed migration of $12.5$ cm and the solvent front showed migration of $18$ cm. The $R_f$ value for the compound is ______

In a thin layer chromatography experiment using a silica gel plate, a compound showed migration of $12.5$ cm and the solvent front showed migration of $18$ cm. The $R_f$ value for the compound is ______

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GATE2017-6
$\underset{x \to 0}{\lim} \dfrac{\sin(x)}{x}$ is ________

$\underset{x \to 0}{\lim} \dfrac{\sin(x)}{x}$ is ________

asked Mar 26, 2018 in Others Milicevic3306 7.9k points

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