Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
1. True or False: A virus is considered a microorganism.
False. Viruses are not living and as such are not considered
microorganisms. Viruses can, however, be classified as microbes, a more
general term that includes microorganisms and viruses.
2. What is the smallest biological unit of life?
A cell.
3. At a generalized level, all cells are comprised of what?
Macromolecules*
*A student may also answer: Proteins, Lipids, Nucleic acids and
Polysaccharides but they must answer with all four to be fully correct.
1. How many different types of amino acids are available from which
to make proteins?
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
,Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
20
2. Define an essential amino acid.
An essential amino acid cannot be produced by the human body and as
such must be take in from the environment through alternative sources
(i.e) food.
1. What are the two major types of nucleic acids and their roles?
DNA-
deoxyribonuclei
c acid RNA-
Ribonucleic acid
DNA- Cellular life has DNA and a role that DNA has is long-term storage of
information, it holds the characteristics of living organisms.
RNA- Is the carrier of information in form of amino acid sequence. It
converts the information in the DNA and synthesizes proteins
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
,Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
. Complete the following DNA strand and indicate how many bonds are
formed for each complementary pair:
3’ GGTCATCG 5’
5’ CC AGC 3’
3’ GGTCATCG 5’
5’ CCAGTAGC 3’
There are 2 bonds formed between A and T, and 3 bonds between G and C.
1. 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
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
, Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
C. Prevents essential nutrients from escaping
D. Contains hydrophobic tails pointing outward
A and C
2. How many carbon atoms are present in the monosaccharide glucose?
A. 1
B. 3
C. 6
D. 12
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
Exams Questions and Answers New Update
2022/2023 Rated A+
1. True or False: A virus is considered a microorganism.
False. Viruses are not living and as such are not considered
microorganisms. Viruses can, however, be classified as microbes, a more
general term that includes microorganisms and viruses.
2. What is the smallest biological unit of life?
A cell.
3. At a generalized level, all cells are comprised of what?
Macromolecules*
*A student may also answer: Proteins, Lipids, Nucleic acids and
Polysaccharides but they must answer with all four to be fully correct.
1. How many different types of amino acids are available from which
to make proteins?
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
,Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
20
2. Define an essential amino acid.
An essential amino acid cannot be produced by the human body and as
such must be take in from the environment through alternative sources
(i.e) food.
1. What are the two major types of nucleic acids and their roles?
DNA-
deoxyribonuclei
c acid RNA-
Ribonucleic acid
DNA- Cellular life has DNA and a role that DNA has is long-term storage of
information, it holds the characteristics of living organisms.
RNA- Is the carrier of information in form of amino acid sequence. It
converts the information in the DNA and synthesizes proteins
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
,Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
. Complete the following DNA strand and indicate how many bonds are
formed for each complementary pair:
3’ GGTCATCG 5’
5’ CC AGC 3’
3’ GGTCATCG 5’
5’ CCAGTAGC 3’
There are 2 bonds formed between A and T, and 3 bonds between G and C.
1. 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
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
, Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
C. Prevents essential nutrients from escaping
D. Contains hydrophobic tails pointing outward
A and C
2. How many carbon atoms are present in the monosaccharide glucose?
A. 1
B. 3
C. 6
D. 12
Portage Learning BIOD 171 Microbiology Lecture
Exams Questions and Answers New Update
2022/2023 Rated A+
