LSU BIOL 1201 EXAM 1 QUESTIONS
AND ANSWERS 100% VERIFIED
Hypothesis - ANSWER-a small statement that you can test
Theory - ANSWER-broader in scope than a hypothesis and can lead to a new testable
hypothesis; supported by a large body of evidence in comparison to a hypothesis
Deductive - ANSWER-Testing what you think is true; Design, Test, Conclusion
Inductive - ANSWER-making observations and solution from that observation; All
observations have the same result.
Valence - ANSWER-Outer shell of electrons; the number of unpaired electrons in the
valence shell of an atom is generally equal to its valence (the # of covalent bonds it can
form)
covalent bonds - ANSWER-Strongest bonds in organisms are _______ ________ that
form a cell's molecules.
Weak chemical bonds - ANSWER-(ionic and hydrogen bonds) confer shape of large
molecules and help molecules interact
Atomic mass - ANSWER-the atom's total mass, which can be approximated by the
mass number
Mass number - ANSWER-the sum of protons and neutrons in the nucleus
Atomic number - ANSWER-the number of protons in an element
Isotopes - ANSWER-two atoms of an element that differ in the number of neutrons
Radioactive isotopes - ANSWER-decay spontaneously, giving off particles and energy
Hydrogen bonds - ANSWER-forms when a hydrogen atom covalently bonded to one
electronegative atom is also attracted to another electronegative atom
Chemical Equilibrium - ANSWER-reached when the forward and reverse reaction rates
are equal
Van der Waals interactions - ANSWER-attractions between molecules that are close
together as a result of these charges
AND ANSWERS 100% VERIFIED
Hypothesis - ANSWER-a small statement that you can test
Theory - ANSWER-broader in scope than a hypothesis and can lead to a new testable
hypothesis; supported by a large body of evidence in comparison to a hypothesis
Deductive - ANSWER-Testing what you think is true; Design, Test, Conclusion
Inductive - ANSWER-making observations and solution from that observation; All
observations have the same result.
Valence - ANSWER-Outer shell of electrons; the number of unpaired electrons in the
valence shell of an atom is generally equal to its valence (the # of covalent bonds it can
form)
covalent bonds - ANSWER-Strongest bonds in organisms are _______ ________ that
form a cell's molecules.
Weak chemical bonds - ANSWER-(ionic and hydrogen bonds) confer shape of large
molecules and help molecules interact
Atomic mass - ANSWER-the atom's total mass, which can be approximated by the
mass number
Mass number - ANSWER-the sum of protons and neutrons in the nucleus
Atomic number - ANSWER-the number of protons in an element
Isotopes - ANSWER-two atoms of an element that differ in the number of neutrons
Radioactive isotopes - ANSWER-decay spontaneously, giving off particles and energy
Hydrogen bonds - ANSWER-forms when a hydrogen atom covalently bonded to one
electronegative atom is also attracted to another electronegative atom
Chemical Equilibrium - ANSWER-reached when the forward and reverse reaction rates
are equal
Van der Waals interactions - ANSWER-attractions between molecules that are close
together as a result of these charges
