SELU BECKER BIO 151 EXAM 1
questions and answers graded A+
updated
Characteristics of Living Things - correct answer ✔✔everything is composed of cells, ordered
complexity, sensitivity, growth development and reproduction, energy utilization, homeostasis,
adaptation
Hierarchical organization is based on ________________ - correct answer ✔✔ordered
complexity
Explains how even single celled bacteria can sense change in its environment - correct answer
✔✔Sensitivity
Cellular level - correct answer ✔✔Atoms, molecules, macromolecules, organelles, cells
Organismal level - correct answer ✔✔tissue, organ, organ system, organism
Population level - correct answer ✔✔population, species, community, ecosystem, biosphere
Cell Theory - correct answer ✔✔all living things composed of cells, cells come from preexisting
cells, cells are basic functional unit of life
DNA encodes... - correct answer ✔✔the genetic material of an organism
Domains of life - correct answer ✔✔Bacteria, Archae, Eukarya
,Prokaryotes - correct answer ✔✔Bacteria and Archae
Eukaryotes - correct answer ✔✔Eukarya
Living systems require ______________ to exist in non-equilibrium states - correct answer
✔✔Energy
_______________ gives rise to diversity - correct answer ✔✔Evolution
Evolution is... - correct answer ✔✔the change in the genetic makeup of a population over time
Three types of bonds - correct answer ✔✔Covalent, ionic, hydrogen
Octet rule - correct answer ✔✔The outer shell wants a full set of electrons (2 in hydrogen but 8
in all other)
Valence electrons - correct answer ✔✔Outer shell of electrons
Ionic bonds ___________ electrons - correct answer ✔✔transfer
Subatomic particle that dictates an atom's behavior - correct answer ✔✔electron
Greater potential energy is seen in the electrons _______________________ from the cell -
correct answer ✔✔farthest away
Atomic number - correct answer ✔✔number of protons
, cation - correct answer ✔✔positive charged ion--loses an electron
anion - correct answer ✔✔negative charged ion--gains an electron
Oxidation - correct answer ✔✔losing an electron
Reduction - correct answer ✔✔gaining an electron
Redux reaction - correct answer ✔✔When oxidation and reduction occur in the same reaction
Ionic bonds are __________ than hydrogen bonds but weaker than covalent bonds - correct
answer ✔✔Stronger
Ionic bond is... - correct answer ✔✔the attraction between charged molecules' atoms
Ionic bonds are separated/dissociated by ____________ molecules - correct answer ✔✔Polar
Covalent bonds ___________ electrons - correct answer ✔✔Share
Polar covalent - correct answer ✔✔not shared equally
Nonpolar covalent - correct answer ✔✔shared equally
Polar covalent bond example - correct answer ✔✔Water
questions and answers graded A+
updated
Characteristics of Living Things - correct answer ✔✔everything is composed of cells, ordered
complexity, sensitivity, growth development and reproduction, energy utilization, homeostasis,
adaptation
Hierarchical organization is based on ________________ - correct answer ✔✔ordered
complexity
Explains how even single celled bacteria can sense change in its environment - correct answer
✔✔Sensitivity
Cellular level - correct answer ✔✔Atoms, molecules, macromolecules, organelles, cells
Organismal level - correct answer ✔✔tissue, organ, organ system, organism
Population level - correct answer ✔✔population, species, community, ecosystem, biosphere
Cell Theory - correct answer ✔✔all living things composed of cells, cells come from preexisting
cells, cells are basic functional unit of life
DNA encodes... - correct answer ✔✔the genetic material of an organism
Domains of life - correct answer ✔✔Bacteria, Archae, Eukarya
,Prokaryotes - correct answer ✔✔Bacteria and Archae
Eukaryotes - correct answer ✔✔Eukarya
Living systems require ______________ to exist in non-equilibrium states - correct answer
✔✔Energy
_______________ gives rise to diversity - correct answer ✔✔Evolution
Evolution is... - correct answer ✔✔the change in the genetic makeup of a population over time
Three types of bonds - correct answer ✔✔Covalent, ionic, hydrogen
Octet rule - correct answer ✔✔The outer shell wants a full set of electrons (2 in hydrogen but 8
in all other)
Valence electrons - correct answer ✔✔Outer shell of electrons
Ionic bonds ___________ electrons - correct answer ✔✔transfer
Subatomic particle that dictates an atom's behavior - correct answer ✔✔electron
Greater potential energy is seen in the electrons _______________________ from the cell -
correct answer ✔✔farthest away
Atomic number - correct answer ✔✔number of protons
, cation - correct answer ✔✔positive charged ion--loses an electron
anion - correct answer ✔✔negative charged ion--gains an electron
Oxidation - correct answer ✔✔losing an electron
Reduction - correct answer ✔✔gaining an electron
Redux reaction - correct answer ✔✔When oxidation and reduction occur in the same reaction
Ionic bonds are __________ than hydrogen bonds but weaker than covalent bonds - correct
answer ✔✔Stronger
Ionic bond is... - correct answer ✔✔the attraction between charged molecules' atoms
Ionic bonds are separated/dissociated by ____________ molecules - correct answer ✔✔Polar
Covalent bonds ___________ electrons - correct answer ✔✔Share
Polar covalent - correct answer ✔✔not shared equally
Nonpolar covalent - correct answer ✔✔shared equally
Polar covalent bond example - correct answer ✔✔Water
