Microorganisms and Viruses Flashcards
1
Q
What are microorganisms?
A
- microorganisms are organisms that cannot be seen with naked eye because they are microscopic organisms.
2
Q
How many types of microorganisms can we classify? Name them all.
A
- Bacteria
- protozoa
- algae
- fungi
- viruses
3
Q
State 4 characteristics of a bacteria.
A
- bacteria are prokaryotic ( DNA exist and threadlike structure known as nucleotide)
- Some bacteria has flagellum for locomotion
- Has cell wall
- Bacteria can in a single cell, diploid, filaments, chains, clusters
4
Q
What are the basic shapes for bacteria
- sphere
- rod
- spiral
A
- coccus
- bacillus
- spirillum
5
Q
Give 2 examples of bacteria.
A
- Lactobacillus sp.
- Streptococcus sp.
6
Q
What are the main characteristic of protozoa?
* protozoa is under the kingdom protista
A
- They are unicellular
- eukaryotic
- more around using their pseudopodium ,cilia or flagellum
- are heterotroph or autotrophs
- they can be free-living or parasitic
7
Q
Give some examples of protozoa.
A
Amoeba
Paramecium
Euglena
8
Q
State 3 characteristics of algae and some examples.
A
- Algae are autotrophs
- Unicellular
- some have flagellum
- Fucus sp.
- Chlamydomonas sp.
9
Q
What are the main characteristics of fungi?
A
- They can be unicellular or multicellular
- heterotrophs ( parasitic or saprophytes)
- have cell wall made of chitin
- Have thread like networks known as hyphae
- Mucor sp.
- Yeast
10
Q
Choose the correct statement about viruses
- Virus are not included in any kingdoms
- Virus does not carry out life processes
- Virus inject their dna in to other organisms
A
All correct
11
Q
What are virus compose of?
A
- nucleic acid
- capsids ( protein)
