NCERT Class 4 Science Solutions The World of Microbes Part 1
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Multiple Choices
Q 1. I am a unicellular organism. I make breads and idles fluffy and spongy. Who am I?
a. Yeast
b. Bacteria
c. Algae
d. Protozoa
Answers: a
Q 2. Which among the following diseases is not caused by virus?
a. Polio
b. Measles
c. Dengue
d. Typhoid
Answers: d
Q 3. Penicillin a lifesaving medicine is made from …………………………….
a. Bacteria
b. Fungi
c. Algae
d. Virus
Answers: b
Q 4. I live in water. I cause diseases like malaria. Who am I?
a. Bacteria
b. Algae
c. Fungi
d. Protozoa
Answers: d
Q 5. Find the odd one out.
a. TB
b. Cholera
c. Polio
d. Typhoid
Answers: c
Find whether TRUE or FALSE
1. The microbes which cause common cold and belong to Viruses. True
2. Bacteria Lactobacillus helps in fermentation. False
3. Viruses are bigger than Bacteria, hence easy to identify. False
4. Microorganisms which are used to prepare medicines are called antibiotics. True
5. Saprophytic bacteria depend on living things. False