APPROACH, 2ND EDITION. CHAPTER 1. A
COMPREHENSIVE AND WELL ANALYSED EXAM
PREPARATION GUIDE (GRADED A+)
Microbiology ANSWER >> Specialized area of biology that deals with living things too
small to be seen without magnification
Major groups of microorganisms in order from largest to smallest ANSWER >>
Bacteria
Archaea
Protozoa
Fungi
Helminths
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, Viruses
Algae
Microbes are easy to study because... ANSWER >> They reproduce rapidly
They can be grown in large populations in the lab
Microbes are difficult to study because... ANSWER >> They can't be directly seen &
have to be analyzed through indirect means
Eu-kary ANSWER >> True nucleus
Pro-kary ANSWER >> Pre nucleus
Prokaryotes include... ANSWER >> Bacteria
Archaea
Prokaryotes have been on the planet... ANSWER >> 3.5 billion years
Eukaryotes have been on the planet... ANSWER >> 1.8 billion years
Eukaryotes were precursors to... ANSWER >> Organisms that eventually formed
multicellular animals
Ubiquitous ANSWER >> Microbes are found everywhere! Earth's crust, polar ice caps,
oceans, bodies of plants & animals
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