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Microbiology 1 - Exam 1 Test Bank Exam 2024/2025 Questions With Completed & Verified Solutions.
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Microbiology 1 - Exam 1 Test Bank Exam 2024/2025 Questions With Completed & Verified Solutions.
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Microbiology 1 - Exam 1 Test BankWhich is the smallest unit of life that can exist as a separate entity?
a. a cell
b. a molecule
c. an organ
d. a population - ANS a cell
All of the following are characteristics of life except
a. ionization.
b. metabolism.
c. reproduction.
d. cellular organization. - ANS ionization
All forms of life share the basic characteristics of
a. the ability to obtain and use energy by metabolism.
b. the ability to sense and respond to their surroundings.
c. the ability to convert sunlight into energy.
d. a and b are correct. - ANS a and b are correct: the ability to obtain and use energy by
metabolism AND the ability to sense and respond to their surroundings
The ability to maintain a constant internal environment
a. metabolism.
b. homeostasis.
c. development.
d. thermoregulation. - ANS homeostasis
Which of the following levels of organization include the chemical and physical environment as
well as the living components?
a. individual organisms
b. ecosystems
c. communities
d. populations - ANS ecosystems
Energy transfers take place at what organizational level?
a. molecule
b. organelle
c. cell
d. organism - ANS molecule
Which of the following statements is correct?
a. Decomposers recycle energy as heat.
,b. Consumers capture the energy from sunlight.
c. Fungi eat plants to obtain energy.
d. Producers convert sunlight into energy. - ANS Producers convert sunlight into energy.
A mutation is a change in
a. homeostasis.
b. metabolism.
c. hereditary instructions.
d. the life cycle of an organism. - ANS hereditary instructions.
Pesticide resistance in mosquitoes is an example of
a. accelerated rates of natural selection due to human involvement.
b. the creation of new species due to human involvement.
c. a species entering the empty niche of an extinct mosquito.
d. a symbiotic relationship between a virus and mosquitoes. - ANS accelerated rates of natural
selection due to human involvement.
A scientific name consists of which of the following?
a. family name
b. genus name
c. species
d. both b and c - ANS both b and c: genus name and species
Members of what kingdom are multicellular producers?
a. Animalia
b. Protista
c. Fungi
d. Plantae - ANS Plantae
The simplest forms of life belong to the kingdoms ____________.
a. Plantae and Animalia
b. Fungi and Plantae
c. Protista and Fungi
d. Eubacteria and Archaebacteria - ANS Eubacteria and Archaebacteria
The processes of cellular differentiation are studied through
a. developmental biology.
b. genetics.
c. embryology.
d. all of the above - ANS all of the above: developmental biology, genetics and embryology
Which of the following would NOT be characteristic of living organisms?
a. complex structural organization
b. dependence on other organisms for energy and resources
,c. reproductive capacity
d. uniformity of size and form - ANS uniformity of size and form
When Darwin wrote On the Origin of Species,
a. he verified earlier hypotheses.
b. no conclusions could be made.
c. his observations matched the test results.
d. only an educated guess was presented. - ANS only an educated guess was presented.
Archaeopteryx is considered to be
a. a living example of the evolutionary process.
b. a link between the dinosaurs and modern birds.
c. a link between the reptiles and birds of today.
d. an extinct form of flying reptile. - ANS a link between the reptiles and birds of today.
The process of nature choosing those individuals to survive long enough in order to reproduce
is called
a. reproductive diversity.
b. selective reproduction.
c. predator limiting factor.
d. natural selection. - ANS natural selection
Of the following, which is the first explanation of a problem? It is sometimes called an educated
guess.
a. principle
b. law
c. theory
d. hypothesis - ANS hypothesis
The scientific method includes
a. observations and hypotheses.
b. testing and results from the tests.
c. conclusions based upon results.
d. all of the above. - ANS all of the above: observations and hypotheses, testing and results
from the tests AND conclusions based upon results
Control groups allow scientists to
a. study several variables at the same time.
b. study one variable at a time.
c. eliminate the need for verifiable data.
d. rule out a hypothesis. - ANS study one variable at a time.
Which represents the lowest degree of certainty?
a. hypothesis
, b. conclusion
c. principle
d. theory - ANS hypothesis
Hypotheses may be thought of as
a. educated guesses.
b. scientific facts.
c. universal principles.
d. pure speculation. - ANS educated guesses.
Science is based on
a. faith.
b. authority.
c. evidence.
d. consensus. - ANS evidence.
Which is the smallest portion of a substance that retains the properties of an element?
a. atom
b. compound
c. ion
d. molecule - ANS atom
A molecule is
a. a combination of two or more atoms.
b. less stable than its constituent atoms separated.
c. electrically charged.
d. a carrier of one or more extra neutrons. - ANS a combination of two or more atoms.
The basic components of an atom include
a. the electrons.
b. the nucleus.
c. the protons and neutrons.
d. all of the above. - ANS all of the above: the electrons, the nucleus AND the protons and
neutrons
Which components of an atom do NOT have a charge?
a. electrons
b. protons
c. neutrons
d. all of the above - ANS neutrons
The nucleus of an atom contains
a. neutrons and protons.
b. neutrons and electrons.
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