WorksheetsVISION ACADEMY
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
NAME:
4 lines
2.
ROLLNO:
4 lines
3.
Q1. _________ was first the substance produced by E coli .
a)
a. Antitoxin.
b)
b. Antibiotic.
c)
c. Insulin.
d)
d. Toxoids.
4.
Q2. Tab vaccine is used for the prevention of __________ .
a)
a. Cholera.
b)
b. TB .
c)
c. Hiv.
d)
d. Typhoid.
5.
Q3. Rhizobium converts ________ into soluble nitrates.
a)
a. Hydrogen.
b)
b. Nitrogen
c)
c. Sulphur.
d)
d. Sodium.
6.
Q4. _______ free living bacteria converts free nitrogen of the soil into ammonia.
a)
a. Rhizobium.
b)
b. Clostridium.
c)
c. E.coli.
d)
d. Yeast.
7.
Q5. The nitrates are Replenished in the soil by bacteria through the process of _________
a)
a. Ammonification.
b)
b. Amination.
c)
c. Nitrification.
d)
d. Denitrification.
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