Glucose can diffuse from the digestive tract into the human blood system without first being digested.
Answer:
Option D is correct
Explanation:
Luria broth contains yeast concentrate so it would show a marked B- galactosidase activity which is an enzyme that catalyzes the hydrolysis of B- galactosides including lactose and it is the first step of lactose fermentation.
This process is called Denitrification. The process is undertaken by the denitrifying bacteria, whose action is converting nitrates in the soil to free atmospheric nitrogen and therefore, depleting soil fertility and reducing agricultural productivity. Examples of denitrifying bacteria are thiobacillus denitrificans, micrococcus denitrificans among others.
