BIL 150 FINAL EXAM-MALLERY|| 123
QUESTIONS AND ANSWERS (GRADED
A+)
an inquiry based research approach includes: - ANSWER-1. seeing what motivated the
researchers to do the experiment
2. seeing how the experiments are designed
3. determining what new techniques or methodologies were used in the experiments
4. seeing if the results influenced the future course of this type of research
the replacement level fertility for a human reproductive couple is: - ANSWER-2.1
an effective way population dynamicists can show the structure of a population is via
age/sex - ANSWER-population pyramid
what is the first step of the scientific method - ANSWER-observation
testing whether or not a new drug reduces high blood pressure. the change in systolic
and diastolic blood pressure values of the participants represents the ___ variable. -
ANSWER-dependent
an effective way to emphasize just the numerical values of raw data collected in an
experiment is in a _____. - ANSWER-table
a hypothesis that has been confirmed through repeated experimental tests over a long
period of time is often referred to as... - ANSWER-a theory
specific to general - ANSWER-inductive reasoning
general to specific - ANSWER-deductive reasoning
breaking the bonds by adding water - ANSWER-hydrolysis
a possible role for minerals in the establishment biomolecules common to those found
in living systems today during the early Earth origins of such molecules was -
ANSWER-to provide scaffolding support for concentrating small molecules
enzyme pathways are similar in - ANSWER-all living cells
what element has the greatest percentage of human body weight? - ANSWER-oxygen
properties of water due to its hydrogen bonds - ANSWER--high surface tension
, -cohesiveness
-specific heat
-heat of vaporization
the permanent geometry of a molecule that cannot be changed without breaking
chemical bonds - ANSWER-configuration
a peptide bond between 2 amino acids is planar and does not allow free rotation about
the axis of the bond - ANSWER-true
it is often noted via the scientific method that hypotheses are never proven, only
disproven - ANSWER-true
a method pf protein separation that separates protein from each other on the basis of
pH where the protein would have no net charge - ANSWER-isoelectric focusing
if your cell membranes were unstable and weak, you would add what? - ANSWER-fats
and lipids
characteristics of a cellular metabolic pathway - ANSWER--dynamic steady state
-economy
-efficiency
-regulation via enzymes
CH3 - ANSWER-hydrophobic non polar functional group
cellular functions for proteins: - ANSWER-enzyme catalysis, transport of molecules,
structural support, receptors of molecules
the point in a molecule where the pH has no net charge - ANSWER-isoelectric point
a peptide bond is what shape - ANSWER-planar
after homogenization of a soft tissue one would expect to find soluble cellular protein
where? - ANSWER-in the supernatant
if one separate proteins from each other according to their molecular weight, the best
procedure would be with...? - ANSWER-SDS-PAGE (gel electrophoresis)
possible ET sources for the bio-organic molecules that may have helped seed the
planet Earth are... - ANSWER-1. comets
2. meteorites
3. asteroids
which level of protein structure does hydrophobic interactions play a signifiant structural
role? - ANSWER-tertiary
QUESTIONS AND ANSWERS (GRADED
A+)
an inquiry based research approach includes: - ANSWER-1. seeing what motivated the
researchers to do the experiment
2. seeing how the experiments are designed
3. determining what new techniques or methodologies were used in the experiments
4. seeing if the results influenced the future course of this type of research
the replacement level fertility for a human reproductive couple is: - ANSWER-2.1
an effective way population dynamicists can show the structure of a population is via
age/sex - ANSWER-population pyramid
what is the first step of the scientific method - ANSWER-observation
testing whether or not a new drug reduces high blood pressure. the change in systolic
and diastolic blood pressure values of the participants represents the ___ variable. -
ANSWER-dependent
an effective way to emphasize just the numerical values of raw data collected in an
experiment is in a _____. - ANSWER-table
a hypothesis that has been confirmed through repeated experimental tests over a long
period of time is often referred to as... - ANSWER-a theory
specific to general - ANSWER-inductive reasoning
general to specific - ANSWER-deductive reasoning
breaking the bonds by adding water - ANSWER-hydrolysis
a possible role for minerals in the establishment biomolecules common to those found
in living systems today during the early Earth origins of such molecules was -
ANSWER-to provide scaffolding support for concentrating small molecules
enzyme pathways are similar in - ANSWER-all living cells
what element has the greatest percentage of human body weight? - ANSWER-oxygen
properties of water due to its hydrogen bonds - ANSWER--high surface tension
, -cohesiveness
-specific heat
-heat of vaporization
the permanent geometry of a molecule that cannot be changed without breaking
chemical bonds - ANSWER-configuration
a peptide bond between 2 amino acids is planar and does not allow free rotation about
the axis of the bond - ANSWER-true
it is often noted via the scientific method that hypotheses are never proven, only
disproven - ANSWER-true
a method pf protein separation that separates protein from each other on the basis of
pH where the protein would have no net charge - ANSWER-isoelectric focusing
if your cell membranes were unstable and weak, you would add what? - ANSWER-fats
and lipids
characteristics of a cellular metabolic pathway - ANSWER--dynamic steady state
-economy
-efficiency
-regulation via enzymes
CH3 - ANSWER-hydrophobic non polar functional group
cellular functions for proteins: - ANSWER-enzyme catalysis, transport of molecules,
structural support, receptors of molecules
the point in a molecule where the pH has no net charge - ANSWER-isoelectric point
a peptide bond is what shape - ANSWER-planar
after homogenization of a soft tissue one would expect to find soluble cellular protein
where? - ANSWER-in the supernatant
if one separate proteins from each other according to their molecular weight, the best
procedure would be with...? - ANSWER-SDS-PAGE (gel electrophoresis)
possible ET sources for the bio-organic molecules that may have helped seed the
planet Earth are... - ANSWER-1. comets
2. meteorites
3. asteroids
which level of protein structure does hydrophobic interactions play a signifiant structural
role? - ANSWER-tertiary
