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相关概念视频

Enzyme Inhibition01:30

Enzyme Inhibition

Inhibitors are molecules that reduce enzyme activity by binding to the enzyme. In a normally functioning cell, enzymes are regulated by a variety of inhibitors. Drugs and other toxins can also inhibit enzymes. Some inhibitors bind to the enzyme’s active site, while others inhibit enzymatic activity by binding to other sites on the protein structure.
Common Ion Effect03:24

Common Ion Effect

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
Acid and Bases: Ka, pKa, and Relative Strengths02:35

Acid and Bases: Ka, pKa, and Relative Strengths

This lesson delves into a critical aspect of the relative strengths of acids and bases. The strength of an acid is evaluated by the acid dissociation into its conjugate base and a hydronium ion in water. The complete dissociation of a strong acid is confirmed with a very high concentration of hydronium ions. As a result, an incomplete dissociation process affirms a weak acid. Therefore, the equilibrium is in the forward direction for strong acids and backward for weak acids in these reactions.
Solvating Effects02:12

Solvating Effects

An understanding of the solvating effect helps rationalize the relation between solvation and acidity of the compound. In addition, this also explains the relative stability of conjugate bases for compounds with different pKa values. This lesson details, in-depth, the principle of solvating effects. The strength of an acid and the stability of its corresponding conjugate base are determined using pKa values. This observed relationship is a consequence of solvation, which is the interaction...
Esters to Carboxylic Acids: Acid-Catalyzed Hydrolysis01:13

Esters to Carboxylic Acids: Acid-Catalyzed Hydrolysis

Hydrolysis of esters under acidic conditions proceeds through a nucleophilic acyl substitution. In the presence of excess water, the reaction proceeds in a reversible manner, forming carboxylic acids and alcohols.
During hydrolysis, the ester is first activated towards nucleophilic attack through the protonation of the carboxyl oxygen atom by the acid catalyst. The protonation makes the ester carbonyl carbon more electrophilic. In the next step, water acts as a nucleophile and adds to the...
Alkylation of β-Diester Enolates: Malonic Ester Synthesis01:14

Alkylation of β-Diester Enolates: Malonic Ester Synthesis

Malonic ester synthesis is a method to obtain α substituted carboxylic acids from ꞵ-diesters such as diethyl malonate and alkyl halides.

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相关实验视频

Updated: Jun 14, 2026

Sigma's Non-specific Protease Activity Assay - Casein as a Substrate
11:37

Sigma's Non-specific Protease Activity Assay - Casein as a Substrate

Published on: September 17, 2008

牛酸盐对乳酸脱酶异酶的活性的影响.

P M EMERSON, J H WILKINSON, W A WITHYCOMBE

    Nature
    |June 27, 1964
    PubMed
    概括

    No abstract available in PubMed .

    关键词:
    贫血症,性的贫血症这是血,是血.丁酸盐的使用情况酶抑制剂 酶抑制剂红红细胞 红红细胞实验室研究实验室研究胃的粘膜 胃的粘膜 胃的粘膜脏 脏是指脏的部分.乳酸盐脱生成过程肝脏酶学 肝脏酶学肌肉 肌肉 肌肉心脏机关 (Myocardium) 是一个心脏机关.氧沙酸盐 氧沙酸盐 是一种皮鲁瓦特的水谱光光度学是一种光谱光度学.

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    Evaluation of the Efficacy of Organic Peroxyacids for Eradicating Dairy Biofilms Using an Approach Combining Static and Dynamic Methods
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    Evaluation of the Efficacy of Organic Peroxyacids for Eradicating Dairy Biofilms Using an Approach Combining Static and Dynamic Methods

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    Quantifying the Modulation of Elastase Enzyme Activity Through Colorimetric Analysis
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    Quantifying the Modulation of Elastase Enzyme Activity Through Colorimetric Analysis

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    相关实验视频

    Last Updated: Jun 14, 2026

    Sigma's Non-specific Protease Activity Assay - Casein as a Substrate
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    Published on: September 17, 2008

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    Quantifying the Modulation of Elastase Enzyme Activity Through Colorimetric Analysis
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