BIOD 171 PORTAGE LEARNING ESSENTIAL
MICROBIOLOGY ACTUAL TEST BANK
QUESTIONS SOLUTIONS GRADED A PLUS
PREMIUM STUDY RESOURCE
●● True or False: The smallest biological unit of life is a molecule.
Answer: False
The smallest unit of life is a cell.
●● What are the four main types of macromolecules found in a cell?
Answer: Proteins, Lipids, Nucleic Acids and Carbohydrates
●● How many different types of amino acids are available to make
proteins?
Answer: 20
●● How many amino acids are classified as being essential amino acids?
Answer: 9
●● 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.
●● The plasma membrane (select all that are true):
Answer: Is often a bilayer comprised of lipids
Contrains hydrophobic tails pointing inward
●● Carbon, hydrogen, and oxygen atoms come together to form what
primary macromolecules? Give an example.
Answer: Carbohydrates. They come together to form glucose or lactose.
●● True or False: The genetic material within a prokaryotic cell is
contained within a membrane-enclosed region.
MICROBIOLOGY ACTUAL TEST BANK
QUESTIONS SOLUTIONS GRADED A PLUS
PREMIUM STUDY RESOURCE
●● True or False: The smallest biological unit of life is a molecule.
Answer: False
The smallest unit of life is a cell.
●● What are the four main types of macromolecules found in a cell?
Answer: Proteins, Lipids, Nucleic Acids and Carbohydrates
●● How many different types of amino acids are available to make
proteins?
Answer: 20
●● How many amino acids are classified as being essential amino acids?
Answer: 9
●● 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.
●● The plasma membrane (select all that are true):
Answer: Is often a bilayer comprised of lipids
Contrains hydrophobic tails pointing inward
●● Carbon, hydrogen, and oxygen atoms come together to form what
primary macromolecules? Give an example.
Answer: Carbohydrates. They come together to form glucose or lactose.
●● True or False: The genetic material within a prokaryotic cell is
contained within a membrane-enclosed region.
