STRAIGHTERLINE BIO 101 FINAL EXAM
QUESTIONS AND ANSWERS
ALREADY PASSED
smallest unit that has all of the characteristics of life ✔✔cell
nutrient molecules are used to build cellular structures or for energy. this best represents which
characteristic of life? ✔✔living things acquire materials and energy from the environment
organs are composed of tissues, which are composed of cells. this is an example of which
characteristic of life? ✔✔living things have levels of hierarchical organization
which statement concerning reproduction is false? ✔✔the offspring of multicellular organisms
tend to be identical to the parent
technology is the ✔✔application of scientific knowledge for a practical purpose
which of the following is a potential consequence if people stop using technology in the
agriculture industry? ✔✔there could be a significant decrease in the amount of food produced
if a new anti-cancer drug is found to be effective in initial tests with mice, what might researchers
conclude? ✔✔the drug is effective in the mouse model; it must still be tested in humans
which statement regarding science technology is false? ✔✔science technology is a basis for all
ethical or moral decisions
which of the following is one of the domains of life? ✔✔Eukarya
,You have discovered a previously unknown organism. It is multicellular, with a filamentous
form, and absorbs food from its environment. Upon microscopic examination, you see that the
cells have nuclei. How would you classify this organism? ✔✔kingdom fungi
which domains contain organisms that lack a membrane-bound nucleus ✔✔archaea and bacteria
corn belongs to the kingdom ✔✔plantae
which of these classification categories contains the closest related group of organisms?
✔✔genus
what is the correct formal for the binomial name of human beings? ✔✔Homo sapiens
A physician specializes in surgery involving the following group of organs: mouth, esophagus,
stomach, and intestines. Overall, what is the highest level of organization that this physician is
specialized in? ✔✔organ system
which sequence correctly lists the different levels of biological organization, from the smallest
and simplest to the largest and most complex? ✔✔cell-tissues-organ-organ systems-organisms
which statement about an ecosystem is incorrect? ✔✔there is a community of organisms, but no
non-living components
when comparing energy and chemicals in an ecosystem, ✔✔chemicals cycle over and over again
but energy flows through once
all the organisms of carious species living within a given area constitute a(n) ✔✔community
which of the following is of least importance when concerning the preservation of an ecosystem?
✔✔preservation of an ecosystem allows humans to exploit as many resources as possible
,the most important factor that determines where major ecosystems are located on the globe is
✔✔climate
the term biodiversity refers to ✔✔the total number of species, variation of species, and the
ecosystem in which they live
ever since the antibiotic drug penicillin was discovered in 1928, the incidence of resistant
bacteria has steadily increased as a direct result of ✔✔natural selection
as the human population size increases ✔✔biodiversity is adversely affected as humans have
destructive effects on ecosystems
all the banded sunfish in a pond would comprise a(n) ✔✔population
which of the following types of lipids is the most abundant constituent of cell membranes?
✔✔phospholipid
two molecules of glucose combine to form a disaccharide molecule during a(n) _______ reaction
✔✔dehydration
which of the following is not a function of ATP within the cell? ✔✔all answer choices are
functions of ATP within the cell
which of the following radiation uses is the one that is most likely to have both beneficial and
harmful consequences? ✔✔using radiation to treat a cancer patient
the backbone of a nucleic acid strand is composed of ✔✔alternating pentose sugars and
phosphate groups
which of these combinations would be found in a nucleotide? ✔✔base-sugar-phosphate
, which of the following reactions is most likely to occur if an individual was to ingest a large dose
of lemon juice? ✔✔there would be an increase in the about of carbonic acid within the
bloodstream. if the carbonic acid didn't form, then the pH of the individual's blood could shift
toward 7.2
In the search to discover the agents that cause mad cow disease, scrapie in sheep, and CJD and
kuru in humans, diseased brain tissues were passed through a fine filter to remove bacteria. The
filtrate was still infectious, indicating that something smaller than bacteria, either viruses or
organic molecules, must be the causative agent. If a virus was responsible for these brain
diseases, then the infectious agent would contain either RNA or DNA. Other possibilities were
that the agent was a carbohydrate, fat, or protein. Tissue filtrates were treated with agents that
destroyed just one of these chemicals and then injected into a healthy animal, with the results as
follows. What is the infectious agent?
•Amylase digests carbohydrates; tissue filtrate still infects healthy test animal.
•Lipase digests fats; tissue filtrate still infects healthy test animal.
•Formaldehyde and/or heat denatures DNA and RNA; tissue filtrate still infects healthy test
animal.
•Trypsin digests protein; tissue filtrate does not infect healthy test animal. ✔✔protein
which is not a correct attribute of a metabolic pathway? ✔✔a constant supply of new enzymes
must be produces to keep the metabolic pathway active
whether or not an enzyme is active and present within a cell depends on all of the following
except ✔✔whether the enzyme catalyzes an endergonic or exergonic reaction
the location in which the enzyme and substrate complexes is called the ✔✔active site
where within the cell is ATP built up? ✔✔mitochondria
QUESTIONS AND ANSWERS
ALREADY PASSED
smallest unit that has all of the characteristics of life ✔✔cell
nutrient molecules are used to build cellular structures or for energy. this best represents which
characteristic of life? ✔✔living things acquire materials and energy from the environment
organs are composed of tissues, which are composed of cells. this is an example of which
characteristic of life? ✔✔living things have levels of hierarchical organization
which statement concerning reproduction is false? ✔✔the offspring of multicellular organisms
tend to be identical to the parent
technology is the ✔✔application of scientific knowledge for a practical purpose
which of the following is a potential consequence if people stop using technology in the
agriculture industry? ✔✔there could be a significant decrease in the amount of food produced
if a new anti-cancer drug is found to be effective in initial tests with mice, what might researchers
conclude? ✔✔the drug is effective in the mouse model; it must still be tested in humans
which statement regarding science technology is false? ✔✔science technology is a basis for all
ethical or moral decisions
which of the following is one of the domains of life? ✔✔Eukarya
,You have discovered a previously unknown organism. It is multicellular, with a filamentous
form, and absorbs food from its environment. Upon microscopic examination, you see that the
cells have nuclei. How would you classify this organism? ✔✔kingdom fungi
which domains contain organisms that lack a membrane-bound nucleus ✔✔archaea and bacteria
corn belongs to the kingdom ✔✔plantae
which of these classification categories contains the closest related group of organisms?
✔✔genus
what is the correct formal for the binomial name of human beings? ✔✔Homo sapiens
A physician specializes in surgery involving the following group of organs: mouth, esophagus,
stomach, and intestines. Overall, what is the highest level of organization that this physician is
specialized in? ✔✔organ system
which sequence correctly lists the different levels of biological organization, from the smallest
and simplest to the largest and most complex? ✔✔cell-tissues-organ-organ systems-organisms
which statement about an ecosystem is incorrect? ✔✔there is a community of organisms, but no
non-living components
when comparing energy and chemicals in an ecosystem, ✔✔chemicals cycle over and over again
but energy flows through once
all the organisms of carious species living within a given area constitute a(n) ✔✔community
which of the following is of least importance when concerning the preservation of an ecosystem?
✔✔preservation of an ecosystem allows humans to exploit as many resources as possible
,the most important factor that determines where major ecosystems are located on the globe is
✔✔climate
the term biodiversity refers to ✔✔the total number of species, variation of species, and the
ecosystem in which they live
ever since the antibiotic drug penicillin was discovered in 1928, the incidence of resistant
bacteria has steadily increased as a direct result of ✔✔natural selection
as the human population size increases ✔✔biodiversity is adversely affected as humans have
destructive effects on ecosystems
all the banded sunfish in a pond would comprise a(n) ✔✔population
which of the following types of lipids is the most abundant constituent of cell membranes?
✔✔phospholipid
two molecules of glucose combine to form a disaccharide molecule during a(n) _______ reaction
✔✔dehydration
which of the following is not a function of ATP within the cell? ✔✔all answer choices are
functions of ATP within the cell
which of the following radiation uses is the one that is most likely to have both beneficial and
harmful consequences? ✔✔using radiation to treat a cancer patient
the backbone of a nucleic acid strand is composed of ✔✔alternating pentose sugars and
phosphate groups
which of these combinations would be found in a nucleotide? ✔✔base-sugar-phosphate
, which of the following reactions is most likely to occur if an individual was to ingest a large dose
of lemon juice? ✔✔there would be an increase in the about of carbonic acid within the
bloodstream. if the carbonic acid didn't form, then the pH of the individual's blood could shift
toward 7.2
In the search to discover the agents that cause mad cow disease, scrapie in sheep, and CJD and
kuru in humans, diseased brain tissues were passed through a fine filter to remove bacteria. The
filtrate was still infectious, indicating that something smaller than bacteria, either viruses or
organic molecules, must be the causative agent. If a virus was responsible for these brain
diseases, then the infectious agent would contain either RNA or DNA. Other possibilities were
that the agent was a carbohydrate, fat, or protein. Tissue filtrates were treated with agents that
destroyed just one of these chemicals and then injected into a healthy animal, with the results as
follows. What is the infectious agent?
•Amylase digests carbohydrates; tissue filtrate still infects healthy test animal.
•Lipase digests fats; tissue filtrate still infects healthy test animal.
•Formaldehyde and/or heat denatures DNA and RNA; tissue filtrate still infects healthy test
animal.
•Trypsin digests protein; tissue filtrate does not infect healthy test animal. ✔✔protein
which is not a correct attribute of a metabolic pathway? ✔✔a constant supply of new enzymes
must be produces to keep the metabolic pathway active
whether or not an enzyme is active and present within a cell depends on all of the following
except ✔✔whether the enzyme catalyzes an endergonic or exergonic reaction
the location in which the enzyme and substrate complexes is called the ✔✔active site
where within the cell is ATP built up? ✔✔mitochondria
