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Inessa05 [86]
2 years ago
11

The lock-and-key mechanism refers to

Chemistry
2 answers:
miskamm [114]2 years ago
5 0

Answer:

A). The complementary shapes of an enzyme and a substrate.

Explanation:

The Lock-and-key mechanism was proposed by Emil Fischer for the first time and characterized as the metaphor which helps in elucidating the specificity of the enzymatic reactions. In this metaphor, the lock is described as the enzyme while 'key' is characterized as the substrate which the enzyme acts upon. If the key is not appropriately sized, it will not fit into the active site i.e. the keyhole of the lock or enzyme and reaction will not take place. Thus, <u>option A</u> is the correct answer.

sweet-ann [11.9K]2 years ago
5 0
The complementary shapes of an enzyme and substrate
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This is chemical change (chemical reaction), because new substance (magnesium oxide MgO) is formed, the atoms are rearranged and the reaction is followed by an energy change (exothermic reaction because energy is released).

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Answer : 0.026 moles of oxygen are in the lung

Explanation :

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PV = nRT

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The conversion factor used here is 1 atm = 101.3 kPa.

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3 0
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The Society of Automotive Engineers has established an accepted numerical scale to measure the viscosity of motor oil. For examp
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</span><span>CH3CH2CH2CH2CH2CH2CH2CH2CH2CH3
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