Advertisements
Advertisements
Question
Name the organism and enzyme which brings about the alcoholic fermentation of sucrose.
Advertisements
Solution
Saccharomyces cerevisiae is the yeast species which produces the enzyme invertase and zymase responsible for the alcoholic fermentation of sucrose. The sugarcane molasses containing sucrose is generally used as the fermentation medium. The yeast cells are grown in this medium to perform anaerobic respiration which produces ethanol and carbon dioxide.
\[\ce{\underset{Sucrose}{C12H22O11} + H2O ->[Invertase]\underset{Glucose}{C6H12O6} + \underset{fructose}{C6H12O6}}\]
This mixture is converted to ethanol by the enzyme zymase.
\[\ce{\underset{Glucose or fructose}{C6H12O6}->[Zymase]\underset{ethanol}{2C2H5OH} + 2CO2}\]
APPEARS IN
RELATED QUESTIONS
Name any two species of fungus, which are used in the production of the antibiotics.
The microbial source of vinegar is ______.
Erythromycin is obtained from ______.
Answer the following question based on Meselson and Stahl's experiment on E. coli :
Write the name of the chemical substance used as the only source of nitrogen in the experiment.
Match Column I (Antibiotic) with Column II (Microbial Sources) and select the correct option.
| Column I | Column II | ||
| i. | Chloromycetin | a. | Streptomyces erytreus |
| ii. | Erythromycin | b. | Streptomyces venezuelae |
| iii. | Bacitracin | c. | Streptomyces aureofaciens |
| iv. | Terramycin | d. | bacillus licheniformis |
Study the following statements and select the correct option.
i. Pseudomonas denitrificans can synthesize Vitamin B12.
ii. The microbes Neurospora gossypii and Eremothecium ashbyi produce Vitamin B2.
iii. Vitamin C can be synthesized by the microbe Rhizopus arrhizus.
Which one of the following processes involved in alcohol production is NOT involved in wine production?
Which one of the following is not true about antibiotics?
Write the microbial source of following organic acid.
Citric acid
Name the microbial sources of any two enzymes.
