Microorganisms – Friends or Foes (Q & A-2)
Q1: Fill in the blanks:
a. Microorganisms may be unicellular or ___________.
b. __________ bacteria help to make curd from milk.
c. Disease-causing microorganisms are called _______.
d. Ammonium salt in the soil is converted first into nitrites by _________ bacteria.
e. _______ coagulation takes place only when milk is hot.
f. Salting draws out _______ from food.
g. Nitrate in the soil is converted by _________ bacteria into nitrogen gas.
h. The process of preventing food spoilage by chemical or physical methods is called food ________.
Answer:
a. Multicellular
b. Lactobacillus
c. pathogens
d. Nitrifying
e. Casein
f. water
g. denitrifying
h. preservation