Page 25 - Science Class 08

2. Some microbes live as _____________ on the bodies of other living beings.
(a) parasites (b) bacilli

(c) protozoa (d) none of these
3. Fungi cannot make their food because they lack:
(a) oxygen (b) chlorophyll

(c) carbon dioxide (d) nitrogen
4. Another name for algae is:
(a) weeds (b) water grass
(c) moulds (d) gas

5. The disease-causing microbes are called:
(a) exothermic microbes (b) endothermic microbes
(c) pathogenic microbes (d) both (a) and (b)

B. Write the correct term for.
1. the microbes that have no cellular structure _______________________
2. the microbes that cause various diseases _______________________
3. the medium suitable for microbe culture _______________________

4. the bacteria that spherical in shape _______________________
5. bacteria that make food reac ng with organic compounds _______________________
6. the device that made the discovery of microbes possible _______________________
7. an organism living on the body of another organism _______________________

8. division of a cell into two iden cal cells _______________________
9. a common fungi that is eaten as a delicacy _______________________
10. a fungi that destroys clothes, wood and books _______________________
C. Match the following columns.

Column I Column II
1. Cyst a. Medium for microbe culture
2. Virus b. Curved bacteria

3. Flora c. Hard covering of a microbe’s body
4. PDA d. No cellular structure
5. Vibrio e. Plants
D. Fill in the blanks.

1. The human body is also home to millions of these microbes, also called _______________ .
2. Microbes can survive in almost every kind of _______________ .
3. Microbes are of nearly _______________ species though only a few of them have been
discovered.
4. _______________ are used in making beer, wine and other beverages.

5. A virus has a ny speck of _______________ and _______________ material enclosed in a
protec ve coat of protein.

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