BIO100 Exam #1 Questions and Answers
Question 1.
What is the major difference between eukaryote and prokaryote? Of the 6 kingdoms of life,
which are prokaryotes and which are eukaryotes?
Correct Answer: - prokaryotic cells do not have a nucleus and eukaryotic cells
do. - prokaryotic cells lack some organelles and eukaryotic cells do not. -
prokaryotic cells are not found in humans and eukaryotic cells are. - prokaryotic
cells are always unicellular and eukaryotic cells are often multicellular. -
prokaryotic cells reproduce/divide by binary fission and eukaryotic cells
reproduce/divide by mitosis/meiosis Prokaryotes: Archaebacteria, Eubacteria.
Eukaryotes: Protista, Plantae, Animalia, Fungi.
Question 2.
What did the Miller-Urey Experiment demonstrate?
Correct Answer: Biologically important molecules can form through natural
processes.
Question 3.
What is the importance of diversity in the classroom according to Professor Stamis?
Correct Answer: Valuing individuals of all backgrounds, beliefs, and identities to
create a welcoming environment.
Question 4.
What are hydrogen bonds?
Correct Answer: Weak electrical attractions between water molecules due to
polarity.
Question 5.
The sampling error refers to the
Correct Answer: differences between a group of experimental subjects and the
population as a whole.
Question 6.
What is evaporative cooling?
Correct Answer: Evaporative cooling occurs when a substance evaporates and
the surface of the remaining liquid cools down.
Question 7.
What is a molecule?
Correct Answer: Molecules form when two or more atoms form chemical bonds
with each other. Ex: H2O (water) N2 (nitrogen), O3 (ozone), CaO (calcium oxide),
C6H12O6 (glucose, a type of sugar).
Question 8.
What is the importance of engaging with course materials regularly?
Correct Answer: Regular engagement helps in understanding and retention of
course content.
,Question 9.
What are some examples of lipids?
Correct Answer: Various grains like canola (rapeseed), soybean, olive, corn,
sunflower, peanuts, cashew nuts, almonds, walnuts, flaxseed, rice bran, kernels,
cotton seed, and vegetable oils etc. Lipids can also come from animals as fat.
Question 10.
Which of the following correctly defines a population? a. All the members of a species, no
matter where on the planet they are found. b. All individuals who have similar cell types
(prokaryote or eukaryote). c. Individuals of the same species in a defined area. d.
Individuals of a different species living in a common location. e. All the members of one
species but separated into 2 different areas.
Correct Answer: c
Question 11.
What is not found in animal cells?
Correct Answer: cell wall
Question 12.
Community ecologists would consider which of the following to be most significant in
understanding the structure of an ecological community? A. determining how many
species are present overall B. which particular species are present C. the kinds of
interactions that occur among organisms of different species D. the relative abundance of
species E. all of the above
Correct Answer: E
Question 13.
How is the cell wall different from the cell membrane? What types of organisms have each
of these structures?
Correct Answer: The cell wall is the outside lining of the cell that helps hold the
cell together. The cell membrane is inside the cell membrane and has the
quality of being semi-permeable so it can allow various substances to go in and
out of the cell. A great example of a very simple cell everyone is familiar with is
an egg, one of the largest cells. The shell is the cell wall and the thin lining we
sometimes peel off the shell is the cell membrane. The white of the egg (clear
runny part) is the cytoplasm and the yolk or yellow part is the nucleus. -Plants
have both a cell wall and a cell membrane. Animal cells usually do not have a
cell wall.
Question 14.
The number of organisms that an area can support is known as its... a. population b.
carrying capacity c. reproductive rate d. density e. emigration
Correct Answer: b
Question 15.
How many species of plants are known?
Correct Answer: Over 290,000 species.
,Question 16.
What adaptations did organisms make to the changing chemical atmosphere?
Correct Answer: Development of aerobic metabolism and more complex cellular
machinery.
Question 17.
Based on the intermediate disturbance hypothesis, a community's species diversity is
increased by... a. frequent, massive disturbance b. stable conditions with no disturbance c.
human intervention to eliminate disturbance d. moderate levels of disturbance e. intensive
human disturbance
Correct Answer: d
Question 18.
What does hydrophobic mean? List an example of something that is hydrophobic.
Correct Answer: Water hating; meaning they do not mix with water. Example:
Alkanes, oils, fats, and greasy substances in general.
Question 19.
All of the living species, such as prickly pear cacti, desert tortoises, and other plants and
animals, found in a particular geographic area, plus the abiotic components, such as
water, nitrogen, and soil, are referred to as
Correct Answer: an ecosystem
Question 20.
What are most important for maintaining strong, healthy bones?
Correct Answer: phosphorus and calcium
Question 21.
Uniform spacing patterns in plants such as the creosote bush are most often associated
with A. chance. B. patterns of high humidity. C. the random distribution of seeds. D.
competitive interaction between individuals of the same population. E. the concentration
of nutrients within the population's range.
Correct Answer: D
Question 22.
Who conducted experiments to disprove spontaneous generation?
Correct Answer: Francesco Redi, Louis Pasteur, Jon Tyndall, Stanley Miller,
Harold Urey, Alexander Oparin, J.B.S. Haldane, Günter Wächtershäuser, Thomas
Cech, and Sydney Altman.
Question 23.
Which of the following examples would most accurately measure the density of the
population being studied? A. counting the number of prairie dog burrows per hectare B.
counting the number of times a 1-kilometer transect is intersected by tracks of red
squirrels after a snowfall C. counting the number of coyote droppings per hectare D.
counting the number of moss plants in 1-m2 quadrats E. counting the number of zebras
from airplane census observations.
Correct Answer: A
, Question 24.
A scientific hypothesis has all the following features except that
Correct Answer: it is equal to a theory in predictive value.
Question 25.
What is DNA's role in reproduction?
Correct Answer: DNA serves as the chemical material of genes, transmitting
information from parent to offspring.
Question 26.
What are the two types of nucleic acids? Are nucleic acid made of monomers? If so, what
are the monomers?
Correct Answer: -Two types of nucleic acids are DNA and RNA. -Yes nucleic acid
are made of monomers. - Nucleotides. -DNA has cytosine, thymine, adenine, and
guanine. (ATCG) -RNA has uracil, cytosine, adenine, and guanine. (AUCG)
Question 27.
How is active transport different from passive transport? In which direction along the
concentration gradient are substances "actively" transported? Describe an example.
Correct Answer: -Active Transport: Active Transport uses ATP to pump
molecules AGAINST/UP the concentration gradient. Transport occurs from a low
concentration of solute to high concentration of solute. Requires cellular
energy. -Passive Transport: Movement of molecules DOWN the concentration
gradient. It goes from high to low concentration, in order to maintain
equilibrium in the cells. Does not require cellular energy.
Question 28.
Which of the following correctly lists taxonomic levels from largest to smallest? a.
Kingdom>Order>Phylum>Genus b. Domain>Order>Class>Family c.
Kingdom>Class>Phylum>Species d. Domain>Kingdom>Phylum>Genus
Correct Answer: d. Domain>Kingdom>Phylum>Genus "King Phillip came over
from great Spain"
Question 29.
What are autotrophs?
Correct Answer: Organisms that synthesize their own molecules using an
external energy source.
Question 30.
What is the function of carbohydrates?
Correct Answer: Carbohydrates provide dietary energy and storage, and
contribute to plant structure.
Question 31.
What outdated idea about the origin of life was disproven?
Correct Answer: Spontaneous generation.
Question 32.
If an element in the periodic table of elements has 8 protons, it must have ______
electrons?
Correct Answer: 8
Question 1.
What is the major difference between eukaryote and prokaryote? Of the 6 kingdoms of life,
which are prokaryotes and which are eukaryotes?
Correct Answer: - prokaryotic cells do not have a nucleus and eukaryotic cells
do. - prokaryotic cells lack some organelles and eukaryotic cells do not. -
prokaryotic cells are not found in humans and eukaryotic cells are. - prokaryotic
cells are always unicellular and eukaryotic cells are often multicellular. -
prokaryotic cells reproduce/divide by binary fission and eukaryotic cells
reproduce/divide by mitosis/meiosis Prokaryotes: Archaebacteria, Eubacteria.
Eukaryotes: Protista, Plantae, Animalia, Fungi.
Question 2.
What did the Miller-Urey Experiment demonstrate?
Correct Answer: Biologically important molecules can form through natural
processes.
Question 3.
What is the importance of diversity in the classroom according to Professor Stamis?
Correct Answer: Valuing individuals of all backgrounds, beliefs, and identities to
create a welcoming environment.
Question 4.
What are hydrogen bonds?
Correct Answer: Weak electrical attractions between water molecules due to
polarity.
Question 5.
The sampling error refers to the
Correct Answer: differences between a group of experimental subjects and the
population as a whole.
Question 6.
What is evaporative cooling?
Correct Answer: Evaporative cooling occurs when a substance evaporates and
the surface of the remaining liquid cools down.
Question 7.
What is a molecule?
Correct Answer: Molecules form when two or more atoms form chemical bonds
with each other. Ex: H2O (water) N2 (nitrogen), O3 (ozone), CaO (calcium oxide),
C6H12O6 (glucose, a type of sugar).
Question 8.
What is the importance of engaging with course materials regularly?
Correct Answer: Regular engagement helps in understanding and retention of
course content.
,Question 9.
What are some examples of lipids?
Correct Answer: Various grains like canola (rapeseed), soybean, olive, corn,
sunflower, peanuts, cashew nuts, almonds, walnuts, flaxseed, rice bran, kernels,
cotton seed, and vegetable oils etc. Lipids can also come from animals as fat.
Question 10.
Which of the following correctly defines a population? a. All the members of a species, no
matter where on the planet they are found. b. All individuals who have similar cell types
(prokaryote or eukaryote). c. Individuals of the same species in a defined area. d.
Individuals of a different species living in a common location. e. All the members of one
species but separated into 2 different areas.
Correct Answer: c
Question 11.
What is not found in animal cells?
Correct Answer: cell wall
Question 12.
Community ecologists would consider which of the following to be most significant in
understanding the structure of an ecological community? A. determining how many
species are present overall B. which particular species are present C. the kinds of
interactions that occur among organisms of different species D. the relative abundance of
species E. all of the above
Correct Answer: E
Question 13.
How is the cell wall different from the cell membrane? What types of organisms have each
of these structures?
Correct Answer: The cell wall is the outside lining of the cell that helps hold the
cell together. The cell membrane is inside the cell membrane and has the
quality of being semi-permeable so it can allow various substances to go in and
out of the cell. A great example of a very simple cell everyone is familiar with is
an egg, one of the largest cells. The shell is the cell wall and the thin lining we
sometimes peel off the shell is the cell membrane. The white of the egg (clear
runny part) is the cytoplasm and the yolk or yellow part is the nucleus. -Plants
have both a cell wall and a cell membrane. Animal cells usually do not have a
cell wall.
Question 14.
The number of organisms that an area can support is known as its... a. population b.
carrying capacity c. reproductive rate d. density e. emigration
Correct Answer: b
Question 15.
How many species of plants are known?
Correct Answer: Over 290,000 species.
,Question 16.
What adaptations did organisms make to the changing chemical atmosphere?
Correct Answer: Development of aerobic metabolism and more complex cellular
machinery.
Question 17.
Based on the intermediate disturbance hypothesis, a community's species diversity is
increased by... a. frequent, massive disturbance b. stable conditions with no disturbance c.
human intervention to eliminate disturbance d. moderate levels of disturbance e. intensive
human disturbance
Correct Answer: d
Question 18.
What does hydrophobic mean? List an example of something that is hydrophobic.
Correct Answer: Water hating; meaning they do not mix with water. Example:
Alkanes, oils, fats, and greasy substances in general.
Question 19.
All of the living species, such as prickly pear cacti, desert tortoises, and other plants and
animals, found in a particular geographic area, plus the abiotic components, such as
water, nitrogen, and soil, are referred to as
Correct Answer: an ecosystem
Question 20.
What are most important for maintaining strong, healthy bones?
Correct Answer: phosphorus and calcium
Question 21.
Uniform spacing patterns in plants such as the creosote bush are most often associated
with A. chance. B. patterns of high humidity. C. the random distribution of seeds. D.
competitive interaction between individuals of the same population. E. the concentration
of nutrients within the population's range.
Correct Answer: D
Question 22.
Who conducted experiments to disprove spontaneous generation?
Correct Answer: Francesco Redi, Louis Pasteur, Jon Tyndall, Stanley Miller,
Harold Urey, Alexander Oparin, J.B.S. Haldane, Günter Wächtershäuser, Thomas
Cech, and Sydney Altman.
Question 23.
Which of the following examples would most accurately measure the density of the
population being studied? A. counting the number of prairie dog burrows per hectare B.
counting the number of times a 1-kilometer transect is intersected by tracks of red
squirrels after a snowfall C. counting the number of coyote droppings per hectare D.
counting the number of moss plants in 1-m2 quadrats E. counting the number of zebras
from airplane census observations.
Correct Answer: A
, Question 24.
A scientific hypothesis has all the following features except that
Correct Answer: it is equal to a theory in predictive value.
Question 25.
What is DNA's role in reproduction?
Correct Answer: DNA serves as the chemical material of genes, transmitting
information from parent to offspring.
Question 26.
What are the two types of nucleic acids? Are nucleic acid made of monomers? If so, what
are the monomers?
Correct Answer: -Two types of nucleic acids are DNA and RNA. -Yes nucleic acid
are made of monomers. - Nucleotides. -DNA has cytosine, thymine, adenine, and
guanine. (ATCG) -RNA has uracil, cytosine, adenine, and guanine. (AUCG)
Question 27.
How is active transport different from passive transport? In which direction along the
concentration gradient are substances "actively" transported? Describe an example.
Correct Answer: -Active Transport: Active Transport uses ATP to pump
molecules AGAINST/UP the concentration gradient. Transport occurs from a low
concentration of solute to high concentration of solute. Requires cellular
energy. -Passive Transport: Movement of molecules DOWN the concentration
gradient. It goes from high to low concentration, in order to maintain
equilibrium in the cells. Does not require cellular energy.
Question 28.
Which of the following correctly lists taxonomic levels from largest to smallest? a.
Kingdom>Order>Phylum>Genus b. Domain>Order>Class>Family c.
Kingdom>Class>Phylum>Species d. Domain>Kingdom>Phylum>Genus
Correct Answer: d. Domain>Kingdom>Phylum>Genus "King Phillip came over
from great Spain"
Question 29.
What are autotrophs?
Correct Answer: Organisms that synthesize their own molecules using an
external energy source.
Question 30.
What is the function of carbohydrates?
Correct Answer: Carbohydrates provide dietary energy and storage, and
contribute to plant structure.
Question 31.
What outdated idea about the origin of life was disproven?
Correct Answer: Spontaneous generation.
Question 32.
If an element in the periodic table of elements has 8 protons, it must have ______
electrons?
Correct Answer: 8
