Microbiology Worksheet
The World of Microbes
A Vocabulary warm-up. Match the types of microbes with their definitions.
1 bacteria
a) single celled microbes. The cell structure is simpler than that of other organisms as
there is no nucleus or membrane bound organelles. Instead their control centre
containing the genetic information is contained in a single loop of DNA.
2 archaea
b) can be spherical, rod, spiral, lobed, rectangular or irregular in shape. Some exist as
single cells, others form filaments or clusters. Until the 1970s this group of microbes
was classified as bacteria.
3 fungi
c) can be one-cell or very complex multicellular organisms. A group called the
decomposers grow in the soil or on dead plant matter where they play an important role
in the cycling of carbon and other elements.
4 protozoa
d) single-celled organisms. They come in many different shapes and sizes ranging from
an Amoeba which can change its shape to Paramecium. They live in a wide variety of
moist habitats including fresh water, marine environments and the soil.
5 algae
e) live in fresh or sea water where they can either be free-floating (planktonic) or
attached to the bottom. Some can grow on rocks, soil or vegetation as long as there is
enough moisture. A few form very close partnerships with fungi to form lichens.
6 viruses
f) the smallest of all the microbes. They are said to be so small that 500 million could fit
on to the head of a pin. They are unique because they are only alive and able to multiply
inside the cells of other living things.
B The Dengue Virus https://www.youtube.com/watch?v=z0SduiVTsi0
1 The dengue virus infects about ______ people each year.
A 100 million B 10 million C 110 million
2 There is currently _____vaccine available to prevent this infection.
A only one B no C a
3 The common name for this disease is_____ fever.
A broke-bone B brake-bone C broken-bones
4 The body __________rises to kill the pathogens.
A temperature B heat C fever
5 Lipid bilayer coating the virus’ genome is similar to a ____________
A bundle B bubble C bindle
6 On the outer _______ of the virus are proteins which are binding to host blood cells
A part B surface C layer
7 The virus gets engulfed into the phagocytic ___________
A vehicle B vesiculum C vesicle
8 Mosquitos spreading the dengue virus appeared in Florida in __________
A 2008 B 2009 C 2010
What are some precautions against the dengue virus?
