Which of the following ions are toxic to enzy | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Enzymatic activity is highly sensitive to the presence of specific metal ions. Heavy metal ions,such as mercury $(Hg^{2+})$,lead $(Pb^{2+})$,and c

Vedclass · Accepted Answer

$Hg^{2+}$

Vedclass · Answer

(D) Enzymatic activity is highly sensitive to the presence of specific metal ions. Heavy metal ions,such as mercury $(Hg^{2+})$,lead $(Pb^{2+})$,and cadmium $(Cd^{2+})$,act as non-competitive inhibitors. They bind to the sulfhydryl $(-SH)$ groups of amino acid residues in the enzyme's active site or elsewhere,causing conformational changes that denature the enzyme or block the active site,thereby rendering the enzyme inactive and toxic to the biological system.

Which of the following ions are toxic to enzymatic activity?

Similar Questions

At high temperatures,enzymes become .........

Read the following statements:
$(a)$ Low temperature preserves the enzyme.
$(b)$ Enzyme activity increases above optimum temperature.
$(c)$ Enzyme gets denatured at high temperature.
$(d)$ Competitive inhibitor competes with the product formed.
Which of the following statements are true?

The given graphical representation relates to enzyme activity under three conditions ($pH$,temperature,and substrate concentration). What do the given axes $X$ and $Y$ represent?
$X$-axis $-$ $Y$-axis

Basically how many types of enzymes have been recognised by the International Union of Biochemistry?

Statement $x$: Enzymes are active within a specific temperature range.
Statement $y$: Enzymes are destroyed at low temperatures.

Vedclass Test Series

Exam Paper Generator

Online Exam Module