BIO 215 Exam 1 Questions All 100%
Solved New Update
Greg - Answers -✔✔ robinson
The first cell appeared about how many billions of years ago? - Answers -✔✔ 3.8
The scientist(s) who proposed organisms be assigned to one of three domains is(are)
_____. - Answers -✔✔ Carl Woese and George Fox
Which of the features listed below is not found in all cells? - Answers -✔✔ Nucleus
Purines and pyrimidines are components in the building block units of all - Answers -
✔✔ Nucleic Acids
Characteristics shared by all cells include:
A)a membrane serving as a cell boundary.
B)the possession of genetic information.
C)the presence of cellular fluid.
D)All of these choices are correct. - Answers -✔✔ D
The lipid group that is the major component of cell membranes is the - Answers -✔✔
Phospholipids
The study of evolutionary relationships among organisms is called - Answers -✔✔
Phylogeny
Which statement correctly compares the sizes of different microorganisms?
A)Bacteria are larger than eukaryotic microorganisms
B)Archaea are larger than eukaryotic microorganisms but smaller than bacteria
C)Eukaryotic microorganisms are smaller than viruses
D)Bacteria are larger than viruses - Answers -✔✔ D
Which of the following is not considered a microorganism? - Answers -✔✔ Mosquito
The Dutch merchant who made and used quality magnifying lenses to see and record
microorganisms was - Answers -✔✔ Antonie van Leeuwenhoek
The building blocks of an enzyme are - Answers -✔✔ Amino Acids
Carl Woese and George Fox developed the three-domain system of taxonomy based
on what molecular discovery? - Answers -✔✔ Variations in the ribonucleic acid of the
small ribosomal subunit of organisms
,If you were a microbiologist in 1950, which of the following scientific principles would
you already know? - Answers -✔✔ Aseptic techniques could reduce the number of
wound infections in the surgical setting
The smallest and most significant taxon is - Answers -✔✔ Species
What part of a phospholipid forms hydrophobic tails? - Answers -✔✔ Fatty acids
You are trying to identify a chemical that consists of adenine, ribose, and three
phosphates. What is this chemical? - Answers -✔✔ ATP
Which of the following is not a pyrimidine?
A)Uracil
B)Adenine
C)Cytosine
D)Thymine - Answers -✔✔ B
Which of the following statements correctly determines the process when following the
scientific method? - Answers -✔✔ Formulate question, conduct research, propose
hypothesis, test hypothesis
Which of the following is a unique characteristic of viruses that distinguishes them from
the other major groups of microorganisms? - Answers -✔✔ Lack cell structure
All of the following are lipids except - Answers -✔✔ Starch
When assigning a scientific name to an organism.. - Answers -✔✔ both genus and
species names are italicized or underlined
Most biochemical macromolecules are polymers, which are chains of - Answers -✔✔
repeating monomers
The scientist(s) who proposed organisms be assigned to one of three domains is(are) -
Answers -✔✔ Carl Woese and George Fox
Which area of biology states that living things undergo gradual, structural, and
functional changes over long periods of time? - Answers -✔✔ Evolution
All of the following are monosaccharides except..
A)Ribose
B)Fructose
C)Glycogen
D)Deoxyribose - Answers -✔✔ C
, The type of microscope in which you would see brightly illuminated specimens against a
black background is - Answers -✔✔ Dark Field
Which of the following is not a benefit of agar as a solid medium? - Answers -✔✔ Is
digested by most microbes
Differential media results in which of the following growth characteristics?
A)Different color colonies
B)Gas bubbles
C)Precipitates
D)Different media color post incubation
E)All are correct - Answers -✔✔ E
Which type of microscope shows cells against a bright background but also
differentiates intracellular structures of unstained cells based on their varying densities?
- Answers -✔✔ Phase contrast
All of the following are examples of different types of microbiological media except -
Answers -✔✔ Petri dish
The diameter of field for a 4x lens is measured at 4.6 mm. How many bacterial cells,
each measuring 4 μm, could be lined up along the diameter? - Answers -✔✔ 1,150
cells
Which type of medium is able to distinguish different species or types of
microorganisms based on an observable change in the colonies or in the medium? -
Answers -✔✔ Differential
Comparing defined vs. complex media is analogous to comparing - Answers -✔✔ baby
formula to breast milk
Which type of microscope achieves the greatest resolution and highest magnification? -
Answers -✔✔ Electron
The correct microbiological term for the tiny sample of specimen that is put into a
nutrient medium in order to produce a culture is the - Answers -✔✔ Inoculum
The term that refers to the purposeful addition of microorganisms into a laboratory
nutrient medium is - Answers -✔✔ Inoculation
Which of the following will result when 1% to 5% agar is added to nutrient broth, boiled,
and cooled? - Answers -✔✔ A solid medium
A pure culture contains.. - Answers -✔✔ Only one species of microorganism
Solved New Update
Greg - Answers -✔✔ robinson
The first cell appeared about how many billions of years ago? - Answers -✔✔ 3.8
The scientist(s) who proposed organisms be assigned to one of three domains is(are)
_____. - Answers -✔✔ Carl Woese and George Fox
Which of the features listed below is not found in all cells? - Answers -✔✔ Nucleus
Purines and pyrimidines are components in the building block units of all - Answers -
✔✔ Nucleic Acids
Characteristics shared by all cells include:
A)a membrane serving as a cell boundary.
B)the possession of genetic information.
C)the presence of cellular fluid.
D)All of these choices are correct. - Answers -✔✔ D
The lipid group that is the major component of cell membranes is the - Answers -✔✔
Phospholipids
The study of evolutionary relationships among organisms is called - Answers -✔✔
Phylogeny
Which statement correctly compares the sizes of different microorganisms?
A)Bacteria are larger than eukaryotic microorganisms
B)Archaea are larger than eukaryotic microorganisms but smaller than bacteria
C)Eukaryotic microorganisms are smaller than viruses
D)Bacteria are larger than viruses - Answers -✔✔ D
Which of the following is not considered a microorganism? - Answers -✔✔ Mosquito
The Dutch merchant who made and used quality magnifying lenses to see and record
microorganisms was - Answers -✔✔ Antonie van Leeuwenhoek
The building blocks of an enzyme are - Answers -✔✔ Amino Acids
Carl Woese and George Fox developed the three-domain system of taxonomy based
on what molecular discovery? - Answers -✔✔ Variations in the ribonucleic acid of the
small ribosomal subunit of organisms
,If you were a microbiologist in 1950, which of the following scientific principles would
you already know? - Answers -✔✔ Aseptic techniques could reduce the number of
wound infections in the surgical setting
The smallest and most significant taxon is - Answers -✔✔ Species
What part of a phospholipid forms hydrophobic tails? - Answers -✔✔ Fatty acids
You are trying to identify a chemical that consists of adenine, ribose, and three
phosphates. What is this chemical? - Answers -✔✔ ATP
Which of the following is not a pyrimidine?
A)Uracil
B)Adenine
C)Cytosine
D)Thymine - Answers -✔✔ B
Which of the following statements correctly determines the process when following the
scientific method? - Answers -✔✔ Formulate question, conduct research, propose
hypothesis, test hypothesis
Which of the following is a unique characteristic of viruses that distinguishes them from
the other major groups of microorganisms? - Answers -✔✔ Lack cell structure
All of the following are lipids except - Answers -✔✔ Starch
When assigning a scientific name to an organism.. - Answers -✔✔ both genus and
species names are italicized or underlined
Most biochemical macromolecules are polymers, which are chains of - Answers -✔✔
repeating monomers
The scientist(s) who proposed organisms be assigned to one of three domains is(are) -
Answers -✔✔ Carl Woese and George Fox
Which area of biology states that living things undergo gradual, structural, and
functional changes over long periods of time? - Answers -✔✔ Evolution
All of the following are monosaccharides except..
A)Ribose
B)Fructose
C)Glycogen
D)Deoxyribose - Answers -✔✔ C
, The type of microscope in which you would see brightly illuminated specimens against a
black background is - Answers -✔✔ Dark Field
Which of the following is not a benefit of agar as a solid medium? - Answers -✔✔ Is
digested by most microbes
Differential media results in which of the following growth characteristics?
A)Different color colonies
B)Gas bubbles
C)Precipitates
D)Different media color post incubation
E)All are correct - Answers -✔✔ E
Which type of microscope shows cells against a bright background but also
differentiates intracellular structures of unstained cells based on their varying densities?
- Answers -✔✔ Phase contrast
All of the following are examples of different types of microbiological media except -
Answers -✔✔ Petri dish
The diameter of field for a 4x lens is measured at 4.6 mm. How many bacterial cells,
each measuring 4 μm, could be lined up along the diameter? - Answers -✔✔ 1,150
cells
Which type of medium is able to distinguish different species or types of
microorganisms based on an observable change in the colonies or in the medium? -
Answers -✔✔ Differential
Comparing defined vs. complex media is analogous to comparing - Answers -✔✔ baby
formula to breast milk
Which type of microscope achieves the greatest resolution and highest magnification? -
Answers -✔✔ Electron
The correct microbiological term for the tiny sample of specimen that is put into a
nutrient medium in order to produce a culture is the - Answers -✔✔ Inoculum
The term that refers to the purposeful addition of microorganisms into a laboratory
nutrient medium is - Answers -✔✔ Inoculation
Which of the following will result when 1% to 5% agar is added to nutrient broth, boiled,
and cooled? - Answers -✔✔ A solid medium
A pure culture contains.. - Answers -✔✔ Only one species of microorganism
