Advertisements
Advertisements
प्रश्न
What are enzymes?
Advertisements
उत्तर
Many chemical reactions that take place in our body are brought about at the physiological pH of 7.4 and the body temperature of 37°C with the help of biological catalysts called enzymes.
APPEARS IN
संबंधित प्रश्न
Define enzymes.
Enzymes that catalyse the interconversion of optical, geometrical, or positional isomers are
Briefly outline the classification of enzymes
____________ 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?
Identify the INCORRECT statement regarding mitochondria.
Maltose - X + Y, Identify X and Y in the presence of the enzyme maltase.
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
Study the following statements and select correct option.
Statement I: Removal of co-factors from the enzyme disrupts the catalytic activity of the enzyme.
Statement II: Prosthetic groups bound tightly to apoenzymes in order to make them catalytically active.
Glycosidic bonds would be broken under the activity of which enzyme?
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 |
From the following identify the condition/s that does not result in complete destruction of enzymes?
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.
Enzyme sucrase belongs to which one of the following classes?
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.
