microorganisms

Question 1

What are the four categories of microorganisms?

Answer 1

-bacteria
-virus
-fungi
-protozoa

Question 2

What are the parts of bacteria?

Answer 2

-flagella–> for movement
-pilli–> to attach to surfaces
-cell wall–> to maintain shape (made out of peptidoglycan)
-strand of chromosome–> contain genetic material
-plasmid–> a ring of dna
-ribosome–> site of protien production
-cell membrane–> control what goes in and out of the cell
-cytoplasm–> where all chemical reactions occur

Question 3

what are prokarytotic organisms?

Answer 3

prokaryotic organisms:
-dont contain a nucleus
-does not contain membrane-bound organelles (mitochondria, chloroplast)
-unicellular organisms

Question 4

advantages and disadvantages of bacteria

Answer 4

+They help make yoghurt (lactobacillus)
+Good bacteria in your gut help digestion
+Bacteria work as decomposers
-causes diseases
-makes food go bad

Question 5

points on fungi

Answer 5

there can be unicellular and multicellular fungi
fungi are eukaryotic
none of the fungi contain chlorophyll and they never do photosynthesis
they do saprotrophic nutrition

Question 6

advantages and disadvantages of fungi

Answer 6

+mushrooms are a high protien source
+yeast helps make breads and wine
+fungi are decomposers
+produce antibodies
-can cause diseases
-make food go bad

Question 7

points of protozoa/protoctists

Answer 7

eukaryotic organisms
some can be multicellular
some look like animal cells (ameoba) and are known as protozoa
some contain chlorophyll (algea) and are known as protoctists
some cause diseases

Question 8

points on viruses

Answer 8

viruses are obligate parasites
all viruses are pathogens
viruses only have a protein coat and DNA or RNA
viruses infect the host by injecting their own DNA into the hosts nucleus
when the virus particles assemble, the host will explode, releasing more viruses into the blood