Microorganisms Flashcards
(25 cards)
Study of microorganisms is called _____
Microbiology
Microorganisms form a hard outer covering called ____ and it is formed when ___
cyst; conditions are not favourable
Name the five types of microorganisms
bacteria, algae, protozoa, fungi, viruses
How many bacteria are present in one gram of garden soil?
2.5 billion
Name the three different shapes of bacteria
rod-shaped(bacilli), spherical(cocci), spiral(spirilla)
Examples of protozoa
Amoeba, Giardia, Paramecium
What are fungi
plant like organisms without chlorophyll.
Fungi mode of nutrition
parasite or saphrophyte
use of lactobacillus
souring milk and making curd from milk
use of yeast
preparing bread
yeast uses ____ for food
sugar
breaking down of sugar by yeast is called
fermentation
Which instrument is used to view viruses
electron microscope
where do fungi grow best
dark, warm, moist places
Lactobacillus uses
Making curd and cheese
Yeast uses
Making bread, idli, dosa, dhokla, alcohol and alcoholic drinks
Use of algae
Obtaining align, which is used to thicken foods, like ice creams and jellies.
Use of bacteria
Making Vitamin B complex tablets, obtaining insulin, decomposing tissues of dead organisms
What are harmful bacteria called
pathogens or germs
diseases that commonly spread through air are____
common cold, flu, chickenpox, mumps, tuberculosis, measles and polio
Name diseases that spread through food and water
Cholera, typhoid, hepatitis
Name diseases that spread through direct contact
ringworm, common cold, flu, chicken pox
_____ mosquito spreads malaria
female anopheles
the _____ mosquito spreads dengue
female aedes
