Biod 171 Essential Microbiology Full Practice Questions – Top
Score | UPDATED ACTUAL Exam Questions and CORRECT
Answers
Question 1.
True or False: The smallest biological unit of life is a molecule.
Answer: False
The smallest unit of life is a cell.
Question 2.
What are the four main types of macromolecules found in a cell?
Answer: Proteins, Lipids, Nucleic Acids and Carbohydrates
Question 3.
How many different types of amino acids are available to make proteins?
Answer: 20
Question 4.
How many amino acids are classified as being essential amino acids?
Answer: 9
Question 5.
Where can the two major types of nucleic acids be found in the cell and what are their
roles?
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.
‣ Complete the following RNA strand and indicate how many bonds are formed
for each complementary pair. Answer: 5'CCAGUAGC3'
AGU is the missing part. There are two bonds between A and U and 3 bonds
between G and C.
Question 6.
The plasma membrane (select all that are true):
Answer: Is often a bilayer comprised of lipids
Contrains hydrophobic tails pointing inward
Score | UPDATED ACTUAL Exam Questions and CORRECT
Answers
Question 1.
True or False: The smallest biological unit of life is a molecule.
Answer: False
The smallest unit of life is a cell.
Question 2.
What are the four main types of macromolecules found in a cell?
Answer: Proteins, Lipids, Nucleic Acids and Carbohydrates
Question 3.
How many different types of amino acids are available to make proteins?
Answer: 20
Question 4.
How many amino acids are classified as being essential amino acids?
Answer: 9
Question 5.
Where can the two major types of nucleic acids be found in the cell and what are their
roles?
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.
‣ Complete the following RNA strand and indicate how many bonds are formed
for each complementary pair. Answer: 5'CCAGUAGC3'
AGU is the missing part. There are two bonds between A and U and 3 bonds
between G and C.
Question 6.
The plasma membrane (select all that are true):
Answer: Is often a bilayer comprised of lipids
Contrains hydrophobic tails pointing inward
