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प्रश्न
Define enzymes.
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उत्तर
Enzymes are defined as biocatalysts, produced by the living cells which catalyse many biochemical reactions in animals and plant bodies.
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संबंधित प्रश्न
Describe the important properties of enzymes.
What are the factors affecting the rate of enzyme reaction?
____________ refers to enzymes that act at a site far away from the site of its synthesis.
Which of the following essential elements act as enzyme activators?
The word 'enzyme' refers to ______.
Match the enzymes with their respective substrates and choose the correct option.
| Column I | Column II | ||
| i. | pancreatic lipase | a. | Dipeptides |
| ii. | Nucleases | b. | Fats |
| iii. | Lactase | c. | Nucleic acids |
| iv. | Dipeptidases | d. | Lactose |
Which enzyme catalyzes following reaction?
OAA + acetyl-Co-A → Citrate + Co-A
Prosthetic groups differ from co-enzymes in that-
NADP is ____________.
Study the following statements with respect to enzymes and select the correct option.
- Most of the enzymes work at an optimum temperature between 20°C and 35°C.
- Enzymes are destroyed at lower temperature of 10-20°C.
- Each enzyme exhibits its highest activity at a specific pH i.e. optimum pH.
Match the Column I (Enzymes) with Column II (Functions) and select the correct option:
| Column I | Column II | ||
| i. | Restriction endonuclease | a. | Joins the DNA fragments |
| ii. | Restriction exonuclease | b. | Extends primers on genomic DNA template |
| iii. | DNA ligase | c. | Cuts DNA at Specific position |
| iv. | Taq polymerase | d. | Removes nucleotides from the ends of DNA |
The rate of enzyme reactions rises with the increase in substrate concentration. But it does NOT increase beyond a certain concentration because ______
What are different classes of enzymes? Explain any two with the type of reaction they catalyse.
Which of the following statement is true for enzymes?
Enzyme sucrase belongs to which one of the following classes?
Choose the correct statement among the following.
Enzymes are different from catalysts in ______.
Which of the following is a coenzyme?
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these ______.
Give the industrial applications of enzyme catalysis.
Enzymes that catalyse removal of group of atoms from substrate molecule, other than hydrolysis, leaving double bonds are______.
Match the enzymes in Column I with their products in Column II
| Column I | Column II |
|---|---|
| i. Amylase | c. Disaccharides |
| ii. Trypsin | d. Polypeptides |
| iii. Chymotrypsin | b. Dipeptides |
| iv. Rennin | a. Coagulated milk protein |
Choose the correct answer from the following options.
Malonate inhibits the growth of pathogenic bacteria by inhibiting the activity of ______.
