Bio 100: Exam 1 - Cell and Molecular
Biology UPDATED ACTUAL Exam
Questions and CORRECT Answers
Which of the following represents the most correct order of the organization of life from the
smallest unit to the largest? - CORRECT ANSWER - a. atoms, molecules, cells,
organisms, populations, communities, ecosystems, biosphere
Lipids, proteins, DNA, RNA, and complex carbohydrates belong to which of the categories seen
below? - CORRECT ANSWER - d. molecules
On a very hot summer day, you go outside and take your body temperature and find it is 37
degrees Celsius. A few months later when it is very cold, you go outside and take your body
temperature again and find it is still 37 degrees Celsius. This example illustrates. - CORRECT
ANSWER - d. homeostasis
Homeostasis is... - CORRECT ANSWER - a. the ability to maintain equilibrium
All known species belong to one of three domains. Which of the following are the specific
names of these three domains? - CORRECT ANSWER - d. Bacteria, Archaea, and
Eukarya
What organism is defined as a multi-celled organism and absorbs its food internally? -
CORRECT ANSWER - d. animals
What is a characteristic of eukaryotes? - CORRECT ANSWER - e. Their DNA is
contained in a nucleus
In the scientific name, Ursos americanus, Ursos represents the name of thewhile americanus
represents the name of the. - CORRECT ANSWER - c. genus; species
, Which of the following terms is used by scientists when trying to offer a tentative explanation to
a given research question? - CORRECT ANSWER - c. hypothesis
In order to test a hypothesis, scientists. - CORRECT ANSWER - a. perform testable
experiments and/or make observations
What is the correct sequence of events used by scientists when performing a scientific
investigation? - CORRECT ANSWER - d. initial observation; hypothesis; test; data
analysis; conclusion
In the snake mimicry experiment, what was the final conclusion? - CORRECT
ANSWER - c. Bears avoid king snakes only when king snakes live in the same area as
cool snakes
A "control group". - CORRECT ANSWER - b. is not exposed to the treatment used on the
experimental group
Evolution has been tested in various ways and hundreds of times. All these studies confirm that
evolution is the mechanism by which new species arise. Therefore, evolution is considered to be
a scientific, - CORRECT ANSWER - d. theory
The nuclear region of an atom contains. - CORRECT ANSWER - d. protons and neutrons
The negative subatomic particle is the. - CORRECT ANSWER - c. electron
An atom that carries an electrical charge (either + or -) is called a(n). - CORRECT
ANSWER - a. ion
The bond in table salt (NaCI) is which of the following types of chemical bonds? - CORRECT
ANSWER - b. ionic
Biology UPDATED ACTUAL Exam
Questions and CORRECT Answers
Which of the following represents the most correct order of the organization of life from the
smallest unit to the largest? - CORRECT ANSWER - a. atoms, molecules, cells,
organisms, populations, communities, ecosystems, biosphere
Lipids, proteins, DNA, RNA, and complex carbohydrates belong to which of the categories seen
below? - CORRECT ANSWER - d. molecules
On a very hot summer day, you go outside and take your body temperature and find it is 37
degrees Celsius. A few months later when it is very cold, you go outside and take your body
temperature again and find it is still 37 degrees Celsius. This example illustrates. - CORRECT
ANSWER - d. homeostasis
Homeostasis is... - CORRECT ANSWER - a. the ability to maintain equilibrium
All known species belong to one of three domains. Which of the following are the specific
names of these three domains? - CORRECT ANSWER - d. Bacteria, Archaea, and
Eukarya
What organism is defined as a multi-celled organism and absorbs its food internally? -
CORRECT ANSWER - d. animals
What is a characteristic of eukaryotes? - CORRECT ANSWER - e. Their DNA is
contained in a nucleus
In the scientific name, Ursos americanus, Ursos represents the name of thewhile americanus
represents the name of the. - CORRECT ANSWER - c. genus; species
, Which of the following terms is used by scientists when trying to offer a tentative explanation to
a given research question? - CORRECT ANSWER - c. hypothesis
In order to test a hypothesis, scientists. - CORRECT ANSWER - a. perform testable
experiments and/or make observations
What is the correct sequence of events used by scientists when performing a scientific
investigation? - CORRECT ANSWER - d. initial observation; hypothesis; test; data
analysis; conclusion
In the snake mimicry experiment, what was the final conclusion? - CORRECT
ANSWER - c. Bears avoid king snakes only when king snakes live in the same area as
cool snakes
A "control group". - CORRECT ANSWER - b. is not exposed to the treatment used on the
experimental group
Evolution has been tested in various ways and hundreds of times. All these studies confirm that
evolution is the mechanism by which new species arise. Therefore, evolution is considered to be
a scientific, - CORRECT ANSWER - d. theory
The nuclear region of an atom contains. - CORRECT ANSWER - d. protons and neutrons
The negative subatomic particle is the. - CORRECT ANSWER - c. electron
An atom that carries an electrical charge (either + or -) is called a(n). - CORRECT
ANSWER - a. ion
The bond in table salt (NaCI) is which of the following types of chemical bonds? - CORRECT
ANSWER - b. ionic
