BIO 110 EXAM 1 MULTIPLE CHOICE QUESTIONS AND ANSWERS (MC) |
COMPLETE BIOLOGY EXAM 1 STUDY GUIDE 2026/2027
A localized group of organisms that belong to the same species is called a
A) biosystem.
B) community.
C) population.
D) ecosystem.
E) family. - correct answer ✔✔population
Organisms interact with their environments, exchanging matter and energy. For example, plant
chloroplasts convert the energy of sunlight into
A) the energy of motion.
B) carbon dioxide and water.
C) the potential energy of chemical bonds.
D) oxygen.
E) kinetic energy. - correct answer ✔✔the potential energy of chemical bonds
The main source of energy for producers in an ecosystem is
A) light energy.
B) kinetic energy.
C) thermal energy.
D) chemical energy.
E) ATP. - correct answer ✔✔light energy
To understand the chemical basis of inheritance, we must understand the molecular structure of DNA.
This is an example of the application of which concept to the study of biology?
A) evolution
B) emergent properties
C) reductionism
D) the cell theory
E) feedback regulation - correct answer ✔✔reductionism
When the body's blood glucose level rises, the pancreas secretes insulin and, as a result, the blood
glucose level declines. When the blood glucose level is low, the pancreas secretes glucagon and, as a
result, the blood glucose level rises. Such regulation of the blood glucose level is the result of
A) catalytic feedback.B) positive feedback.C) negative feedback.D) bioinformatic regulation.E) protein-
protein interactions. - correct answer ✔✔negative feedback
Which branch of biology is concerned with the naming and classifying of organisms?
A) informatics
B) schematic biology
C) taxonomy
D) genomics
E) evolution - correct answer ✔✔taxonomy
,Prokaryotic and eukaryotic cells generally have which of the following features in common?
A) a membrane-bounded nucleus
B) a cell wall made of cellulose
C) ribosomes
D) flagella or cilia that contain microtubules
E) linear chromosomes made of DNA and protein - correct answer ✔✔ribosomes
Prokaryotes are classified as belonging to two different domains. What are the domains?
A) Bacteria and Eukarya
B) Archaea and Monera
C) Eukarya and Monera
D) Bacteria and Protista
E) Bacteria and Archaea - correct answer ✔✔bacteria and archaea
Which of these individuals is likely to be most successful in an evolutionary sense?
A) a reproductively sterile individual who never falls ill
B) an organism that dies after five days of life but leaves 10 offspring, all of whom survive to reproduce
C) a male who mates with 20 females and fathers one offspring
D) an organism that lives 100 years and leaves two offspring, both of whom survive to reproduce
E) a female who mates with 20 males and produces one offspring that lives to reproduce - correct
answer ✔✔an organism that dies after five days of life
Through time, the lineage that led to modern whales shows a change from four-limbed land animals to
aquatic animals with two limbs that function as flippers. This change is best explained by
A) natural philosophy.
B) creationism.
C) the hierarchy of the biological organization of life.
D) natural selection.
E) feedback inhibition. - correct answer ✔✔natural selection
What is the major difference between a kingdom and a domain?
A) A kingdom can include several subgroups known as domains.
B) All eukarya belong to one domain.
C) All prokaryotes belong to one domain.
D) The importance of fungi has led scientists to make them the whole of one domain.
E) Only organisms that produce their own food belong to one of the domains. - correct answer ✔✔all
eukaryote belong to one domain
What is the major distinguishing characteristic of fungi?
A) gaining nutrition through ingestion
B) being sedentary
C) being prokaryotic
D) absorbing dissolved nutrients
E) being decomposers of dead organisms - correct answer ✔✔absorbing dissolved nutrients
What are archaea?
A) Prokaryotes characterized as extremophiles that share some bacterial and some eukaryotic traits.
, B) Organisms that are adapted to high temperature environments, such as in volcanic springs.
C) Single-celled organisms that are killed by the application of antibiotics at certain concentrations.
D) Bacteria-like organisms that can live only in extreme salt environments.
E) Primitive protist-like creatures possessing fewer than two chromosomes per cell. - correct answer
✔✔prokaryotes characterized as extremophiles that share some bacterial and some eukaryotic traits
When applying the process of science, which of these is tested?
A) a question
B) a result
C) an observation
D) a prediction
E) a hypothesis - correct answer ✔✔hypothesis
A controlled experiment is one in which
A) the experiment is repeated many times to ensure that the results are accurate.
B) the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all
reactions and process all experimental data.
C) there are at least two groups, one of which does not receive the experimental treatment.
D) there are at least two groups, one differing from the other by two or more variables.
E) there is one group for which the scientist controls all variables. - correct answer ✔✔there are at least
two groups, one of which does not relieve the experimental treatment
The application of scientific knowledge for some specific purpose is known as
A) technology.
B) deductive science.
C) inductive science.
D) anthropologic science.
E) pure science. - correct answer ✔✔technology
Which of the following are qualities of any good scientific hypothesis?
I. It is testable.II. It is falsifiable.
III. It produces quantitative data.
IV. It produces results that can be replicated. - correct answer ✔✔I and II
Which of the following is the best description of a control for an experiment?
A) The control group is kept in an unchanging environment.
B) The control is left alone by the experimenters.
C) The control group is matched with the experimental group except for the one experimental variable.
D) The control group is exposed to only one variable rather than several.
E) Only the experimental group is tested or measured. - correct answer ✔✔the control group is matched
with he experimental group except for the one experimental variable
Which of the following best describes a model organism?
A) It is often pictured in textbooks and easy for students to imagine.
B) It lends itself to many studies that are useful to beginning students.
C) It is well studied, easy to grow, and results are widely applicable.
D) It is small, inexpensive to raise, and lives a long time.
COMPLETE BIOLOGY EXAM 1 STUDY GUIDE 2026/2027
A localized group of organisms that belong to the same species is called a
A) biosystem.
B) community.
C) population.
D) ecosystem.
E) family. - correct answer ✔✔population
Organisms interact with their environments, exchanging matter and energy. For example, plant
chloroplasts convert the energy of sunlight into
A) the energy of motion.
B) carbon dioxide and water.
C) the potential energy of chemical bonds.
D) oxygen.
E) kinetic energy. - correct answer ✔✔the potential energy of chemical bonds
The main source of energy for producers in an ecosystem is
A) light energy.
B) kinetic energy.
C) thermal energy.
D) chemical energy.
E) ATP. - correct answer ✔✔light energy
To understand the chemical basis of inheritance, we must understand the molecular structure of DNA.
This is an example of the application of which concept to the study of biology?
A) evolution
B) emergent properties
C) reductionism
D) the cell theory
E) feedback regulation - correct answer ✔✔reductionism
When the body's blood glucose level rises, the pancreas secretes insulin and, as a result, the blood
glucose level declines. When the blood glucose level is low, the pancreas secretes glucagon and, as a
result, the blood glucose level rises. Such regulation of the blood glucose level is the result of
A) catalytic feedback.B) positive feedback.C) negative feedback.D) bioinformatic regulation.E) protein-
protein interactions. - correct answer ✔✔negative feedback
Which branch of biology is concerned with the naming and classifying of organisms?
A) informatics
B) schematic biology
C) taxonomy
D) genomics
E) evolution - correct answer ✔✔taxonomy
,Prokaryotic and eukaryotic cells generally have which of the following features in common?
A) a membrane-bounded nucleus
B) a cell wall made of cellulose
C) ribosomes
D) flagella or cilia that contain microtubules
E) linear chromosomes made of DNA and protein - correct answer ✔✔ribosomes
Prokaryotes are classified as belonging to two different domains. What are the domains?
A) Bacteria and Eukarya
B) Archaea and Monera
C) Eukarya and Monera
D) Bacteria and Protista
E) Bacteria and Archaea - correct answer ✔✔bacteria and archaea
Which of these individuals is likely to be most successful in an evolutionary sense?
A) a reproductively sterile individual who never falls ill
B) an organism that dies after five days of life but leaves 10 offspring, all of whom survive to reproduce
C) a male who mates with 20 females and fathers one offspring
D) an organism that lives 100 years and leaves two offspring, both of whom survive to reproduce
E) a female who mates with 20 males and produces one offspring that lives to reproduce - correct
answer ✔✔an organism that dies after five days of life
Through time, the lineage that led to modern whales shows a change from four-limbed land animals to
aquatic animals with two limbs that function as flippers. This change is best explained by
A) natural philosophy.
B) creationism.
C) the hierarchy of the biological organization of life.
D) natural selection.
E) feedback inhibition. - correct answer ✔✔natural selection
What is the major difference between a kingdom and a domain?
A) A kingdom can include several subgroups known as domains.
B) All eukarya belong to one domain.
C) All prokaryotes belong to one domain.
D) The importance of fungi has led scientists to make them the whole of one domain.
E) Only organisms that produce their own food belong to one of the domains. - correct answer ✔✔all
eukaryote belong to one domain
What is the major distinguishing characteristic of fungi?
A) gaining nutrition through ingestion
B) being sedentary
C) being prokaryotic
D) absorbing dissolved nutrients
E) being decomposers of dead organisms - correct answer ✔✔absorbing dissolved nutrients
What are archaea?
A) Prokaryotes characterized as extremophiles that share some bacterial and some eukaryotic traits.
, B) Organisms that are adapted to high temperature environments, such as in volcanic springs.
C) Single-celled organisms that are killed by the application of antibiotics at certain concentrations.
D) Bacteria-like organisms that can live only in extreme salt environments.
E) Primitive protist-like creatures possessing fewer than two chromosomes per cell. - correct answer
✔✔prokaryotes characterized as extremophiles that share some bacterial and some eukaryotic traits
When applying the process of science, which of these is tested?
A) a question
B) a result
C) an observation
D) a prediction
E) a hypothesis - correct answer ✔✔hypothesis
A controlled experiment is one in which
A) the experiment is repeated many times to ensure that the results are accurate.
B) the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all
reactions and process all experimental data.
C) there are at least two groups, one of which does not receive the experimental treatment.
D) there are at least two groups, one differing from the other by two or more variables.
E) there is one group for which the scientist controls all variables. - correct answer ✔✔there are at least
two groups, one of which does not relieve the experimental treatment
The application of scientific knowledge for some specific purpose is known as
A) technology.
B) deductive science.
C) inductive science.
D) anthropologic science.
E) pure science. - correct answer ✔✔technology
Which of the following are qualities of any good scientific hypothesis?
I. It is testable.II. It is falsifiable.
III. It produces quantitative data.
IV. It produces results that can be replicated. - correct answer ✔✔I and II
Which of the following is the best description of a control for an experiment?
A) The control group is kept in an unchanging environment.
B) The control is left alone by the experimenters.
C) The control group is matched with the experimental group except for the one experimental variable.
D) The control group is exposed to only one variable rather than several.
E) Only the experimental group is tested or measured. - correct answer ✔✔the control group is matched
with he experimental group except for the one experimental variable
Which of the following best describes a model organism?
A) It is often pictured in textbooks and easy for students to imagine.
B) It lends itself to many studies that are useful to beginning students.
C) It is well studied, easy to grow, and results are widely applicable.
D) It is small, inexpensive to raise, and lives a long time.
