Portage Learning BIOD 171 Microbiology Exam Answers
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1. A virus is classified as a microbe.True. Although viruses are not living and
as such are not considered microorganisms, they can, however, be classified as
microbes, a more general term that includes microorganisms and viruses.
2. True or False: The smallest biological unit of life is the molecule.False. The
smallest biological unit of life is the cell.
3. What are the 4 main types of macromolecules found in cells?Proteins,
Lipids, Nucleic acids and Polysaccharide
1. Proteins are formed from various combinations of __________ of which there
are ____ known forms.Amino acids, 20
2. How many amino acids are classified as being essential amino acids?9
1. What are the two major types of nucleic acids and their roles?There are two
major types of nucleic acids: DNA (deoxyribonucleic acid) and RNA (ribonucleic
acid). Nucleic acids are chemical molecules that carry genetic information within
the cell. DNA contains a vast amount of hereditary information and is
responsible for the inheritable characteristics of living organisms. RNA is
responsible for deciphering the hereditary information in DNA and using it to
synthesize proteins.Portage Learning BIOD 171 Microbiology Exam Answers
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2024.Guaranteed Success for Grade A+
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1. Complete the following RNA strand and indicate how many bonds are formed
for each complementary pair:
3’ GGUCAUCG 5’
5’ CC AGC 3’
3’ GGUCAUCG 5’
5’ CCAGUAGC 3’
There are 2 bonds formed between A and U, and 3 bonds between G and C.
1. The plasma membrane (select all that are true):BD
A. Only restricts movement of materials into the cell
B. Is often a bilayer comprised of lipids
C. Cannot prevent essential nutrients from escaping
D. Contains hydrophobic tails pointing inward
2. Carbon, Hydrogen and Oxygen atoms come together to form what primary
macromolecule? Give an example.Polysaccharides. Glucose, sucrose and
cellulose are all acceptable answers.
True of False: The genetic material within a prokaryotic cell i [Show Less]