BIO 156 EXAM 1 Questions with Verified
Correct Answers
Hierarchy of organization
-atoms, molecules, cell, tissue, organs, organ system, organism
-organism, population, community, ecosystem, biosphere
characteristics of living things
organized, need nutrients and energy, respond to stimuli, reproduce and develop, adapt
Scientific process
observation, hypothesis, experiment/further observation, data, conclusion
homeostasis
internal balance, process by which organisms maintain a relatively stable internal
environment
element
92 natural occurring, Carbon hydrogen, nitrogen, oxygen, phosphorus, sulfur
CHNOPS
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
atom
smallest particle of elements
atomic number
number of neutrons in the atom
, atomic mass
neutrons + protons
periodic table
vertical- groups, chemically similar
horizontal- periods, larger and larger
isotopes
atoms of the same element that have different numbers of neutrons
electron shells
different energy levels referred to as electron shells
oclet rule
inner shell has 2 orbitals, others have 8, or multiples of 8
if 3 or less
tends to donate
if 5 or more
tends to recieve
molecule
two or more atoms bonded together
compound
group of atoms where at least one is different
chemical bonding
Correct Answers
Hierarchy of organization
-atoms, molecules, cell, tissue, organs, organ system, organism
-organism, population, community, ecosystem, biosphere
characteristics of living things
organized, need nutrients and energy, respond to stimuli, reproduce and develop, adapt
Scientific process
observation, hypothesis, experiment/further observation, data, conclusion
homeostasis
internal balance, process by which organisms maintain a relatively stable internal
environment
element
92 natural occurring, Carbon hydrogen, nitrogen, oxygen, phosphorus, sulfur
CHNOPS
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
atom
smallest particle of elements
atomic number
number of neutrons in the atom
, atomic mass
neutrons + protons
periodic table
vertical- groups, chemically similar
horizontal- periods, larger and larger
isotopes
atoms of the same element that have different numbers of neutrons
electron shells
different energy levels referred to as electron shells
oclet rule
inner shell has 2 orbitals, others have 8, or multiples of 8
if 3 or less
tends to donate
if 5 or more
tends to recieve
molecule
two or more atoms bonded together
compound
group of atoms where at least one is different
chemical bonding
