Microorganisms

Question 1

Study of microorganisms is called _____

Answer 1

Microbiology

Question 2

Microorganisms form a hard outer covering called ____ and it is formed when ___

Answer 2

cyst; conditions are not favourable

Question 3

Name the five types of microorganisms

Answer 3

bacteria, algae, protozoa, fungi, viruses

Question 4

How many bacteria are present in one gram of garden soil?

Answer 4

2.5 billion

Question 5

Name the three different shapes of bacteria

Answer 5

rod-shaped(bacilli), spherical(cocci), spiral(spirilla)

Question 6

Examples of protozoa

Answer 6

Amoeba, Giardia, Paramecium

Question 7

What are fungi

Answer 7

plant like organisms without chlorophyll.

Question 8

Fungi mode of nutrition

Answer 8

parasite or saphrophyte

Question 9

use of lactobacillus

Answer 9

souring milk and making curd from milk

Question 10

use of yeast

Answer 10

preparing bread

Question 11

yeast uses ____ for food

Answer 11

sugar

Question 12

breaking down of sugar by yeast is called

Answer 12

fermentation

Question 13

Which instrument is used to view viruses

Answer 13

electron microscope

Question 14

where do fungi grow best

Answer 14

dark, warm, moist places

Question 15

Lactobacillus uses

Answer 15

Making curd and cheese

Question 16

Yeast uses

Answer 16

Making bread, idli, dosa, dhokla, alcohol and alcoholic drinks

Question 17

Use of algae

Answer 17

Obtaining align, which is used to thicken foods, like ice creams and jellies.

Question 18

Use of bacteria

Answer 18

Making Vitamin B complex tablets, obtaining insulin, decomposing tissues of dead organisms

Question 19

What are harmful bacteria called

Answer 19

pathogens or germs

Question 20

diseases that commonly spread through air are____

Answer 20

common cold, flu, chickenpox, mumps, tuberculosis, measles and polio

Question 21

Name diseases that spread through food and water

Answer 21

Cholera, typhoid, hepatitis

Question 22

Name diseases that spread through direct contact

Answer 22

ringworm, common cold, flu, chicken pox

Question 23

_____ mosquito spreads malaria

Answer 23

female anopheles

Question 24

the _____ mosquito spreads dengue

Answer 24

female aedes

Question 25

name a disease that spreads through cuts and wounds

Answer 25

tetanus