Role of enzyme in reactions:
- Decrease activation energy
- Increase activation energy
- Inorganic catalyst
- None of the above
The Correct Option is A
Solution and Explanation
The role of enzymes in reactions is to Decrease activation energy. Enzymes facilitate chemical reactions by lowering the energy barrier (activation energy) required for the reaction to occur, thus increasing the rate of the reaction.
So, the correct option is (A): Decrease activation energy
Top Questions on Enzymes
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List I List II A α –I antitrypsin I Cotton bollworm B Cry IAb II ADA deficiency C Cry IAc III Emphysema D Enzyme replacement therapy IV Corn borer
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List I List II A GLUT-4 I Hormone B Insulin II Enzyme C Trypsin III Intercellular ground substance D Collagen IV Enables glucose transport into cells - $K_m$ and $V_{max}$ of an enzyme preparation are 5 µM and 30 $µM min^{-1}$ respectively. Considering, $K_i$ value of competitive inhibitor is 60 µM, the velocity ($V_0$) of this enzyme-catalyzed reaction in the presence of 200 µM of substrate and 600 µM of competitive inhibitor is _______ $ µM min^{-1}$ (rounded off to two decimal places).
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B. Co-extinction
C. Mutation
D. Habitat loss and fragmentation
E. Migration
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(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
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Statement I: Mitochondria and chloroplasts both double membranes bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast. I
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List I
List II
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Concepts Used:
Enzymes - Biology
Enzymes are proteins that help accelerate metabolism or the chemical reactions in our bodies. They build some substances and decompose others. All living creatures have enzymes.
Our bodies naturally build enzymes. But enzymes are also in mass produce products and food.
One of the most important roles of enzymes is to succor digestion. The process of turning the food that we eat into energy is called digestion. For instance, there are enzymes in our saliva, pancreas, stomach, and intestines. They decompose fats, proteins, and carbohydrates. Enzymes make use of these nutrients for growth and cell repair.