UPDATED ACTUAL Exam Questions and
CORRECT Answers
True or False: A virus is classified as a microbe - CORRECT ANSWER - True.
Viruses are not living and are not considered microorganisms, but can be classified as microbes.
True or False: The smallest biological unit of life is a molecule. - CORRECT ANSWER -
False
The smallest unit of life is a cell.
What are the four main types of macromolecules found in a cell? - CORRECT ANSWER -
Proteins, Lipids, Nucleic Acids and Carbohydrates
How many different types of amino acids are available to make proteins? - CORRECT
ANSWER - 20
How many amino acids are classified as being essential amino acids? - CORRECT
ANSWER -9
Where can the two major types of nucleic acids be found in the cell and what are their roles? -
CORRECT ANSWER - DNA and RNA
They are both found in the nucleus. DNA contains and stores hereditary information and is
responsible for the characteristics of living organisms. RNA is a messenger and responsible for
translating the hereditary information in DNA and synthesizes proteins.