BIL 150 EXAMS SET FEATURING SOLVED
QUESTIONS AND ACCURACY CHECKED
ANSWERS
●● an RNA molecule that has catalytic activity?
Answer: is a ribozyme
●● living organisms capable of synthesizing all their need organic
molecules using CO2 as its sole carbon sources are classified as?
Answer: autotrophs
●● the atmosphere inside the Miller and Urey volcanic apparatus was
described chemically as?
Answer: a reducing atmosphere with little reactive oxygen molecules
●● ribosomes are a universally present organelle in all cells and are
primarily composed of which of the following molecules?
Answer: RNA and proteins
●● the formation of new elements of the periodic table occurred by the
fusion of preexisting combinations of proteins and neutrons during the
Big Band and within dying stars known as Supernova?
Answer: true
,●● an experimental study is conducted to determine whether or not 10
milligrams of the drug somatostatin can overcome the effect of dwarfism
in humans. The change in height of the participants in the clinical trial
represent the?
Answer: dependent variable
●● an inquiry based research approach in biology includes?
Answer: choose this answer if all of the above aspects on inquiry based
research in biology
●● a stable, non-radioactive element is known to have an atomic number
of 12, therefore its atomic mass would be?
Answer: 24
●● the half life of radioactive carbon 14C is 5,730 years. A sample of
fossilized wood is shown to contain only 6.35% radioactive 14C
compared with the amount of radioactive 14C in living wood samples of
today, thus the age of the fossilized would be closest to which of the
following?
Answer: 22,920
●● of the following known facts which would provide some of the
strongest evidence for a common ancestry of all known cellular life?
Answer: the universality of the genetic code
,●● the type of error occurring in scientific experiments that is due to the
intrinsic measurement and/or resolution of an instrument is referred to
as?
Answer: random error
●● Robert Hazen's lab proposed that minerals might have played a role
in allowing early primitive organic molecules to react with each other
chemically forming more complex molecules primarily by?
Answer: by providing scaffolding support to facilitate concentration
●● one of the most effective ways of presenting numerical data from a
clinical trial would likely be a?
Answer: table
●● the type of chemical reaction shown in the diagram below is most
likely a?
Answer: a condensation reaction
●● homochiral polymeric molecule, such as proteins that occur in living
cells today, are composed of?
Answer: only one of two possible optical isomers of amino acids
, ●● thermophilic bacteria, which might have been an initial LUGA, have
been hypothesized to have arisen?
Answer: around deep ocean hydrothermal vents
●● the type of chemical reaction acting upon the polymer shown in the
figure below might best be described as?
Answer: a hydrolysis reaction
●● which of the following is likely to be a step within the scientific
method in biology?
Answer: all of these can be a part of the scientific method
●● the scientific method involves the construction of knowledge based
upon observation, testing, and measurement. Identify among these
statements the one that can NOT be experimentally based?
Answer: choose this answer if all the above statements are
experimentally based
●● a hypothesis that has been confirmed through repeated experimental
tests over a very long period of time may be referred to as?
Answer: a theory
●● which of the following phrases better describes the results of natural
selection?
QUESTIONS AND ACCURACY CHECKED
ANSWERS
●● an RNA molecule that has catalytic activity?
Answer: is a ribozyme
●● living organisms capable of synthesizing all their need organic
molecules using CO2 as its sole carbon sources are classified as?
Answer: autotrophs
●● the atmosphere inside the Miller and Urey volcanic apparatus was
described chemically as?
Answer: a reducing atmosphere with little reactive oxygen molecules
●● ribosomes are a universally present organelle in all cells and are
primarily composed of which of the following molecules?
Answer: RNA and proteins
●● the formation of new elements of the periodic table occurred by the
fusion of preexisting combinations of proteins and neutrons during the
Big Band and within dying stars known as Supernova?
Answer: true
,●● an experimental study is conducted to determine whether or not 10
milligrams of the drug somatostatin can overcome the effect of dwarfism
in humans. The change in height of the participants in the clinical trial
represent the?
Answer: dependent variable
●● an inquiry based research approach in biology includes?
Answer: choose this answer if all of the above aspects on inquiry based
research in biology
●● a stable, non-radioactive element is known to have an atomic number
of 12, therefore its atomic mass would be?
Answer: 24
●● the half life of radioactive carbon 14C is 5,730 years. A sample of
fossilized wood is shown to contain only 6.35% radioactive 14C
compared with the amount of radioactive 14C in living wood samples of
today, thus the age of the fossilized would be closest to which of the
following?
Answer: 22,920
●● of the following known facts which would provide some of the
strongest evidence for a common ancestry of all known cellular life?
Answer: the universality of the genetic code
,●● the type of error occurring in scientific experiments that is due to the
intrinsic measurement and/or resolution of an instrument is referred to
as?
Answer: random error
●● Robert Hazen's lab proposed that minerals might have played a role
in allowing early primitive organic molecules to react with each other
chemically forming more complex molecules primarily by?
Answer: by providing scaffolding support to facilitate concentration
●● one of the most effective ways of presenting numerical data from a
clinical trial would likely be a?
Answer: table
●● the type of chemical reaction shown in the diagram below is most
likely a?
Answer: a condensation reaction
●● homochiral polymeric molecule, such as proteins that occur in living
cells today, are composed of?
Answer: only one of two possible optical isomers of amino acids
, ●● thermophilic bacteria, which might have been an initial LUGA, have
been hypothesized to have arisen?
Answer: around deep ocean hydrothermal vents
●● the type of chemical reaction acting upon the polymer shown in the
figure below might best be described as?
Answer: a hydrolysis reaction
●● which of the following is likely to be a step within the scientific
method in biology?
Answer: all of these can be a part of the scientific method
●● the scientific method involves the construction of knowledge based
upon observation, testing, and measurement. Identify among these
statements the one that can NOT be experimentally based?
Answer: choose this answer if all the above statements are
experimentally based
●● a hypothesis that has been confirmed through repeated experimental
tests over a very long period of time may be referred to as?
Answer: a theory
●● which of the following phrases better describes the results of natural
selection?
