UNLV Bio 189 Final Exam |180 Questions and Answers
What is the scientific process? - -Observations, question, hypothesis, prediction, and test
-Hypothesis - -A testable prediction, often implied by a theory
-A hypothesis is ________________ and written so that it could be found incorrect by an
observation or experiment - -Falsifiable
-Is this a hypothesis: cats live fish more than dogs love fish? - -No because it is now
testable
-Is this a hypothesis? Why?: big foot lives in north dakota - -No because it is not tesable
-Is this a hypothesis: all swans are white - -Yes because it is testable
-What are the five functional traits of all living things? - -Grow, sense/response to stimuli,
metabolism, homeostasis, reproduction
-The smallest unit of life - -Cells
-The ____________ is the fundamental unit of matter - -Atom
-Electrons - -Negatively charged subatomic particles
-Proton - -A subatomic particle that has a positive charge
-Neutron - -Subatomic particle with no charge
-An atom has the same number of... - -Protons and electrons
-atomic number - -the number of protons in the nucleus of an atom
-number of protons - -atomic number
-Number of protons and neutrons - -Atomic mass
-An elements ___________________ is calculated by adding the number of protons and number
of neutrons - -Atomic mass
-Isotopes - -Atoms with the same number of protons but different numbers of neutrons
-Hydrogen is an example of an _______________. - -Isotope
-non-polar covalent bond - -equal sharing of electrons
, -polar covalent bond - -unequal sharing of electron species
-H2O is an example of a - -Polar covalent bond
-ionic bonds - -formed when one or more electrons are transferred from one atom to
another
-NaCl is an example of a - -Ionic bond
-Why is h2O polar and CH4 nonpolar? - -Molecular polarity determines how a molecule
behaves
-__________ have Carbon based backbones and at least one Carbon-Hydrogen bond - -
Organic molecules
-____________ lack carbon-based backbones and carbon-hydrogen bonds - -Inorganic
molecule
-C6H12O6 is what type of molecule? - -Organic
-CO2 is what type of molecule? - -Inorganic
-What are the four organic molecules that compose all life? - -Carbohydrates, proteins,
lipids, and nucleotides
-Carbohydrates are made up of - -Monosaccharides
-Are carbohydrates hydrophilic or hydrophobic? - -hydrophilic
-Monomers - -Building blocks of polymers
-Polymers - -Chains of monomers
-What is the monomer of proteins? - -Amino acids
-What is the monomer of nucleic acids? - -Nucleotides
-What are disaccharides? - -Disaccharides are double sugars joined by a covalent bond.
-Disaccharide examples - -Sucrose, maltose, lactose
-Polysaccharides - -Carbohydrates that are made up of more than two monosaccharides
-Polysaccharide examples - -Starch, glycogen, cell
What is the scientific process? - -Observations, question, hypothesis, prediction, and test
-Hypothesis - -A testable prediction, often implied by a theory
-A hypothesis is ________________ and written so that it could be found incorrect by an
observation or experiment - -Falsifiable
-Is this a hypothesis: cats live fish more than dogs love fish? - -No because it is now
testable
-Is this a hypothesis? Why?: big foot lives in north dakota - -No because it is not tesable
-Is this a hypothesis: all swans are white - -Yes because it is testable
-What are the five functional traits of all living things? - -Grow, sense/response to stimuli,
metabolism, homeostasis, reproduction
-The smallest unit of life - -Cells
-The ____________ is the fundamental unit of matter - -Atom
-Electrons - -Negatively charged subatomic particles
-Proton - -A subatomic particle that has a positive charge
-Neutron - -Subatomic particle with no charge
-An atom has the same number of... - -Protons and electrons
-atomic number - -the number of protons in the nucleus of an atom
-number of protons - -atomic number
-Number of protons and neutrons - -Atomic mass
-An elements ___________________ is calculated by adding the number of protons and number
of neutrons - -Atomic mass
-Isotopes - -Atoms with the same number of protons but different numbers of neutrons
-Hydrogen is an example of an _______________. - -Isotope
-non-polar covalent bond - -equal sharing of electrons
, -polar covalent bond - -unequal sharing of electron species
-H2O is an example of a - -Polar covalent bond
-ionic bonds - -formed when one or more electrons are transferred from one atom to
another
-NaCl is an example of a - -Ionic bond
-Why is h2O polar and CH4 nonpolar? - -Molecular polarity determines how a molecule
behaves
-__________ have Carbon based backbones and at least one Carbon-Hydrogen bond - -
Organic molecules
-____________ lack carbon-based backbones and carbon-hydrogen bonds - -Inorganic
molecule
-C6H12O6 is what type of molecule? - -Organic
-CO2 is what type of molecule? - -Inorganic
-What are the four organic molecules that compose all life? - -Carbohydrates, proteins,
lipids, and nucleotides
-Carbohydrates are made up of - -Monosaccharides
-Are carbohydrates hydrophilic or hydrophobic? - -hydrophilic
-Monomers - -Building blocks of polymers
-Polymers - -Chains of monomers
-What is the monomer of proteins? - -Amino acids
-What is the monomer of nucleic acids? - -Nucleotides
-What are disaccharides? - -Disaccharides are double sugars joined by a covalent bond.
-Disaccharide examples - -Sucrose, maltose, lactose
-Polysaccharides - -Carbohydrates that are made up of more than two monosaccharides
-Polysaccharide examples - -Starch, glycogen, cell
