Portage Learning Microbiology Exam -1 Exam fully solved & updated (latest
version verified for accuracy) _ 2024_2025Latest!!
Complete the following DNA strand, and indicate how many bonds are formed for each complementary
pair:3' GGTCATCG 5'5' CC AGC 3' - (ANSWER)5' CCAGTAGC 3'
There are two hydrogen bonds between thymine and adenine. There are three hydrogen bonds
between cytosine and guanine.
In the strand above, there are eight complementary pairs.
3' GGUCAUCG 5'
5' CCAGUAGC 3'
There are 2 bonds formed between A and U, and 3 bonds between G and C.
How many amino acids are classified as being essential amino acids? - (ANSWER)9
True or False: The smallest biological unit of life is the molecule. - (ANSWER)False
True or False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed
region. - (ANSWER)False
What are the four main types of macromolecules found in cells? - (ANSWER)Proteins, Lipids, Nucleic
acids and Polysaccharides (Carbohydrates)
True or False: A virus is considered a microorganism - (ANSWER)False
Describe the 4 basic bacterial morphologies. - (ANSWER)1. Coccus: bacteria is round or spherical
2. Bacillus: bacteria is a rod shape
3. Vibrio: bacteria is a curved rod shape
4. Spirillum: bacteria is in a spiral or corkscrew shape
, Portage Learning Microbiology Exam -1 Exam fully solved & updated (latest
version verified for accuracy) _ 2024_2025Latest!!
True or False: Archaea, a eukaryotic class of microorganisms, is noted for its ability to survive under
harsh conditions - (ANSWER)False. They are prokaryotic.
Where can the two major types of nucleic acids be found in the cell and what are their roles? -
(ANSWER)While both DNA and RNA can be found in the nucleus (center of the cell), only RNA is
capable of leaving the nucleus. 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.
What are the two major types of nucleic acids and their roles? - (ANSWER)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.
Which of the following microorganisms are considered to be Eukarya? Select all that apply.
A. Animalia
B. Plantae
C. Fungi
D. Protista - (ANSWER)A,B,C,D
The plasma membrane (select all that are true):
A. Restricts movement of materials in and out of the cell
B. Is often a triple layer comprised of lipids
C. Prevents essential nutrients from escaping
version verified for accuracy) _ 2024_2025Latest!!
Complete the following DNA strand, and indicate how many bonds are formed for each complementary
pair:3' GGTCATCG 5'5' CC AGC 3' - (ANSWER)5' CCAGTAGC 3'
There are two hydrogen bonds between thymine and adenine. There are three hydrogen bonds
between cytosine and guanine.
In the strand above, there are eight complementary pairs.
3' GGUCAUCG 5'
5' CCAGUAGC 3'
There are 2 bonds formed between A and U, and 3 bonds between G and C.
How many amino acids are classified as being essential amino acids? - (ANSWER)9
True or False: The smallest biological unit of life is the molecule. - (ANSWER)False
True or False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed
region. - (ANSWER)False
What are the four main types of macromolecules found in cells? - (ANSWER)Proteins, Lipids, Nucleic
acids and Polysaccharides (Carbohydrates)
True or False: A virus is considered a microorganism - (ANSWER)False
Describe the 4 basic bacterial morphologies. - (ANSWER)1. Coccus: bacteria is round or spherical
2. Bacillus: bacteria is a rod shape
3. Vibrio: bacteria is a curved rod shape
4. Spirillum: bacteria is in a spiral or corkscrew shape
, Portage Learning Microbiology Exam -1 Exam fully solved & updated (latest
version verified for accuracy) _ 2024_2025Latest!!
True or False: Archaea, a eukaryotic class of microorganisms, is noted for its ability to survive under
harsh conditions - (ANSWER)False. They are prokaryotic.
Where can the two major types of nucleic acids be found in the cell and what are their roles? -
(ANSWER)While both DNA and RNA can be found in the nucleus (center of the cell), only RNA is
capable of leaving the nucleus. 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.
What are the two major types of nucleic acids and their roles? - (ANSWER)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.
Which of the following microorganisms are considered to be Eukarya? Select all that apply.
A. Animalia
B. Plantae
C. Fungi
D. Protista - (ANSWER)A,B,C,D
The plasma membrane (select all that are true):
A. Restricts movement of materials in and out of the cell
B. Is often a triple layer comprised of lipids
C. Prevents essential nutrients from escaping
