BIO-1050 EXAM 1 QUESTIONS WITH
CORRECT ANSWERS
Read each characteristic carefully and compare it to those in your notes. Some of these
may be characteristics that SOME living organisms exhibit but not all. - Correct Answers
-a. Maintain homeostasis
b. Use energy
c. Made of cells
d. Grow and develop
e. Respond to stimuli
f. Ability to reproduce
How do you display characteristics that indicate you are living? (select all correct
responses) - Correct Answers -a. Organizing your study notes for this biology class
b. Taking an afternoon walk
c. Adding rooms to your house as the family gets larger
Viruses are considered living organisms because they are made of cells and can
reproduce on their own. They also have their own metabolism. - Correct Answers -False
They need a host
Which of the following is incorrectly described? - Correct Answers -a. Control Center -
receives input from effector and sends output to receptor
If homeostasis is not maintained, then disease or even death can result. - Correct
Answers -True
Which of the following is the smallest unit of life? - Correct Answers -Cells
Within an organism, tissues combine to form: - Correct Answers -Organs
A group of similar organisms living in the same place is known as: - Correct Answers -A
population
How do atoms relate to the study of life? Select the INCORRECT statement. - Correct
Answers -a. Atoms of different types are bonded within a single element
,Select the INCORRECT statement when considering the purpose of the field of science
known as taxonomy. - Correct Answers -a. In taxonomy, organisms are grouped
according to their country of origin.
Acids - Correct Answers -a) Has a pH less than 7
i) Release a greater concentration of Hydrogen ions [H+] than hydroxide [OH-]
ii) The more hydrogen ions that are released, the more acidic the substance
iii) The lower the pH the more acidic (pH 2 is more acidic than 5)
iv) Often taste sour
v) Corrode metals
vi) Examples include: lemon juice, stomach acid, and coffee
What is the pH of the stomach? - Correct Answers -Stomach pH 2
What is the pH of blood? - Correct Answers -Blood pH must stay between 7.35 and 7.45
for cells to function properly.
What is the purpose of a buffer? - Correct Answers -Blood contains buffers - chemical
compounds that help stabilize blood pH
Humans are in the Domain ____________ and Kingdom ____________. - Correct
Answers -Humans are in the Domain Eukarya and Kingdom Animalia.
Which domain includes organisms that are single-celled, do not have a nucleus in their
cells, and live mostly in extreme environments? - Correct Answers
-Archaea/Archaebacteria
Which kingdom in the Domain Eukarya is a diverse group that contains both autotrophs
and heterotrophs, single-celled and multicellular organisms, and has plant-like, fungal-
like, and animal-like organisms? - Correct Answers -Kingdom Protista
Choose the taxonomic description which would indicate a lifeform most closely related
to a human. - Correct Answers -Genus Homo
Which statement regarding protein function is INCORRECT? - Correct Answers -Protein
structure is simple showing little molecular diversity
1. Select the choice which arranges the taxonomic classification levels in order from
most to least inclusive
.1. Domain
2. Genus
3. Kingdom
4. Species - Correct Answers -1, 3, 2, 4
What is the smallest unit described in thses choices? - Correct Answers -Carbon
, Select the largest uniy from the choices provided: - Correct Answers -Digestive system
Which human body system is responsible for the secretion of hormones, such as growth
hormone and adrenaline - Correct Answers -Endocrine
Which human body system is responsible for carrying gases, wastes, nutrients, etc.
throughout the body - Correct Answers -Circulatory (cardiovascular)
1Which human body system helps fight against pathogens and includes the thymus,
spleen, tonsils, and bone marrow? - Correct Answers -Lymphatic/Immune
Which human body system uses the kinesys to remove waste from blood? - Correct
Answers -Urinary
Which human body system CONTROLS all of the body's actions, including both
voluntary and involuntary actions? - Correct Answers -Nervous
Learning the names for the parts of the brain is an example of studying physiology,
while learning about how the brain sends signals to control various functions in the body
is an example of studying anatomy. - Correct Answers -False
In practice, the scientific method is a linear process that is always used the same way
by scientists. - Correct Answers -False
Based on the example provided, which of the following was made as an observation -
Correct Answers -Noticing a sunburn on your face, shoulders, and arms.
When performing an experiment, you need to test the contribution of a single variable to
an observation. What was the variable in the first experiment - Correct Answers -
Sunscreen expiration date
Which of the following is true regarding the scientific method? - Correct Answers -An
experiment is developed to test a hypothesis
Organize the steps of the scientific method listed below into their correct order:
1. Share the new knowledge with other scientists
2. Analyze and interpret data to reach conclusions
3. Recognize a problem or unanswered question
4. Design and perform an experiment to test the hypothesis
5. Develop a hypothesis to explain the problem - Correct Answers -3, 5, 4, 2, 1
A theory is a guess a scientists makes to explain what he or she observes, which will be
proven right or wrong by experimentation. An hypothesis is a general uniting principle of
science, upheld by observation and many experiments. - Correct Answers -False
CORRECT ANSWERS
Read each characteristic carefully and compare it to those in your notes. Some of these
may be characteristics that SOME living organisms exhibit but not all. - Correct Answers
-a. Maintain homeostasis
b. Use energy
c. Made of cells
d. Grow and develop
e. Respond to stimuli
f. Ability to reproduce
How do you display characteristics that indicate you are living? (select all correct
responses) - Correct Answers -a. Organizing your study notes for this biology class
b. Taking an afternoon walk
c. Adding rooms to your house as the family gets larger
Viruses are considered living organisms because they are made of cells and can
reproduce on their own. They also have their own metabolism. - Correct Answers -False
They need a host
Which of the following is incorrectly described? - Correct Answers -a. Control Center -
receives input from effector and sends output to receptor
If homeostasis is not maintained, then disease or even death can result. - Correct
Answers -True
Which of the following is the smallest unit of life? - Correct Answers -Cells
Within an organism, tissues combine to form: - Correct Answers -Organs
A group of similar organisms living in the same place is known as: - Correct Answers -A
population
How do atoms relate to the study of life? Select the INCORRECT statement. - Correct
Answers -a. Atoms of different types are bonded within a single element
,Select the INCORRECT statement when considering the purpose of the field of science
known as taxonomy. - Correct Answers -a. In taxonomy, organisms are grouped
according to their country of origin.
Acids - Correct Answers -a) Has a pH less than 7
i) Release a greater concentration of Hydrogen ions [H+] than hydroxide [OH-]
ii) The more hydrogen ions that are released, the more acidic the substance
iii) The lower the pH the more acidic (pH 2 is more acidic than 5)
iv) Often taste sour
v) Corrode metals
vi) Examples include: lemon juice, stomach acid, and coffee
What is the pH of the stomach? - Correct Answers -Stomach pH 2
What is the pH of blood? - Correct Answers -Blood pH must stay between 7.35 and 7.45
for cells to function properly.
What is the purpose of a buffer? - Correct Answers -Blood contains buffers - chemical
compounds that help stabilize blood pH
Humans are in the Domain ____________ and Kingdom ____________. - Correct
Answers -Humans are in the Domain Eukarya and Kingdom Animalia.
Which domain includes organisms that are single-celled, do not have a nucleus in their
cells, and live mostly in extreme environments? - Correct Answers
-Archaea/Archaebacteria
Which kingdom in the Domain Eukarya is a diverse group that contains both autotrophs
and heterotrophs, single-celled and multicellular organisms, and has plant-like, fungal-
like, and animal-like organisms? - Correct Answers -Kingdom Protista
Choose the taxonomic description which would indicate a lifeform most closely related
to a human. - Correct Answers -Genus Homo
Which statement regarding protein function is INCORRECT? - Correct Answers -Protein
structure is simple showing little molecular diversity
1. Select the choice which arranges the taxonomic classification levels in order from
most to least inclusive
.1. Domain
2. Genus
3. Kingdom
4. Species - Correct Answers -1, 3, 2, 4
What is the smallest unit described in thses choices? - Correct Answers -Carbon
, Select the largest uniy from the choices provided: - Correct Answers -Digestive system
Which human body system is responsible for the secretion of hormones, such as growth
hormone and adrenaline - Correct Answers -Endocrine
Which human body system is responsible for carrying gases, wastes, nutrients, etc.
throughout the body - Correct Answers -Circulatory (cardiovascular)
1Which human body system helps fight against pathogens and includes the thymus,
spleen, tonsils, and bone marrow? - Correct Answers -Lymphatic/Immune
Which human body system uses the kinesys to remove waste from blood? - Correct
Answers -Urinary
Which human body system CONTROLS all of the body's actions, including both
voluntary and involuntary actions? - Correct Answers -Nervous
Learning the names for the parts of the brain is an example of studying physiology,
while learning about how the brain sends signals to control various functions in the body
is an example of studying anatomy. - Correct Answers -False
In practice, the scientific method is a linear process that is always used the same way
by scientists. - Correct Answers -False
Based on the example provided, which of the following was made as an observation -
Correct Answers -Noticing a sunburn on your face, shoulders, and arms.
When performing an experiment, you need to test the contribution of a single variable to
an observation. What was the variable in the first experiment - Correct Answers -
Sunscreen expiration date
Which of the following is true regarding the scientific method? - Correct Answers -An
experiment is developed to test a hypothesis
Organize the steps of the scientific method listed below into their correct order:
1. Share the new knowledge with other scientists
2. Analyze and interpret data to reach conclusions
3. Recognize a problem or unanswered question
4. Design and perform an experiment to test the hypothesis
5. Develop a hypothesis to explain the problem - Correct Answers -3, 5, 4, 2, 1
A theory is a guess a scientists makes to explain what he or she observes, which will be
proven right or wrong by experimentation. An hypothesis is a general uniting principle of
science, upheld by observation and many experiments. - Correct Answers -False
