Refer to this if Level 3 Applied Science students need ideas or assistance with your Unit 17 assignment (Learning aim A&B) . With all criteria achieved.
17A.P1
Explain how the size, structures and characteristics of microorganisms are used to classify them
Microorganism Bacteria Viruses Fungi Protozoa
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et
,Size The range size of a Viruses have varied sizes Most microscopic or parasitic protozoa in
bacteria is from 0.2µm because of the variety of smaller fungi are 2 to 10 humans are less than 50
to 2µm in diameter. their classification. micrometers. μm in size. While in a
The length is 1-8µm. The diameter of most Balantidium coli may
viruses are 20-300nm and measure 150 μm.
other viruses can be up to
1300nm, with a width of
80
nm
, Structure The structure of a bacteria; Viruses are eukaryotic Fungi are Eukaryotic Protozoa is a unicellular
bacteria are part of cells. They contain: organisms. Some fungi eukaryotic cell. Within
prokaryotic cells and they are unicellular, others the temperature range of
contain. are multicellular. 10 Celsius- 245 Celsius.
● A cell membrane The structure of fungi; it is structure Protozoa
have a membrane
● Cytoplasm ● Contain
surrounding the nucleus
● Cell wall that is made membrane- bound
of all eukaryotes. The
of peptidoglycan ● Dialysis and it said, organelles e.g
nucleus of protozoa,
● Nucleus - Bacteria do however they mitochondria. unlike that of ciliates, is
not have a proper contain capsid that ● Contains cell walls vesicular, with scattered
nucleus, the DNA in are unknown as that contain chitin. chromatin giving it a
bacteria floats free in capsomeres that ● Contains a hyphae diffuse appearance; in
the cytoplasm. surround the nucleic (explain more) fact, all nuclei in an
● Plasmids (small rings acid. individual organism
of DNA) ● They have a look like appear identical.
● Ribosomes I said that either
● Outer capsule contains the DNA or
● Pili RNA
● Flagella ● has no cytoplasm,
organelles or
● Does not contain
membranes.
organelles
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