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Synthesis of Ethers

Metal ions wh...

Question

Metal ions wherever essential for enzyme activity form.............. bond with side chains at the active sites and form ............ bond with substrate

A

ionic and covalent

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B

coordinate and coordinate

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C

ionic and coordinate

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D

coordinate and covalent

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Solution

The correct option is A ionic and covalent
Metal ions Interact with the side chains through ionic bonding whereas it interacts with the substrate by forming coordinate covalent bonding.
They form complexes in this manner.
So the correct answer is ' Ionic and coordinate'.

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Similar questions

Q. Assertion : Enzymes have active sites that hold substrate molecule for a chemical reaction
Reason : Drugs compete with natural substrate by attaching covalently to the active site of enzyme

Q. What type of forces bind the substrate to the active site of enzyme?
(i) Ionic bonding
(ii) Hydrogen bonding
(iii) van der Waals forces
(iv) Reaction with functional group of enzymes

Q. Identify the wrong statemets.

(a)

The substrate binds to active site of enzyme and not fitting into active site

(b)

The binding of substrate induces the enzyme to alter its shape

(c)

Chemical bonds of substrate break down not to form new enzyme-product complex

(d)

The enzyme releases the products of the reaction and runs through catalytic cycle once again

Q. Identify the wrong statements:

(A) The substrate binds to the active site of the enzyme and not fitting into the active site.
(B) The binding of the substrate induces the enzyme to alter its shape.
(C) Chemical bonds of the substrate does not break down to form new enzyme-product complex.
(D) The enzyme releases the reaction and runs through the catalytic cycle once again.

Q. Arrange the steps of catalytic action of an enzyme in order and choose the right option.

(i)

Enzyme releases products of reaction and the enzyme is free to bind to another substrate.

(i i)

Active site of enzyme is in close proximity of substrate and breaks the chemical bonds of substrate.

(i i i)

Binding of substrate induces enzyme to alter its shape fitting more tightly around substrate.

(i v)

Substrate binds to active site of enzyme fitting into active site.

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