BIO 150 Final Review Question and
answers rated A+ (19 pgs)
anions - correct answer ✔negative; gain electrons
cations - correct answer ✔positive; lose electrons
cell membrane - correct answer ✔barrier between the inside of the cell and
everything outside of the cell
cytoplasm - correct answer ✔the cytosol and the organelles
cilia - correct answer ✔microtubule projections that help propel the cell
towards food
lipid - correct answer ✔stores energy for the cell
nucleus - correct answer ✔where the cells information(DNA) is stored
lysosome - correct answer ✔help destroy and eliminate waste
proteins in the cell - correct answer ✔act as little machines to detect food
and digest it
biology - correct answer ✔the study of life
atom - correct answer ✔basic unit of matter
,protons - correct answer ✔positively charged particles in the nucleus of an
atom
neutrons - correct answer ✔neutral particles in the nucleus of an atom
electrons - correct answer ✔negatively charged particles that float around
the nucleus
atomic mass - correct answer ✔protons + neutrons
isotopes - correct answer ✔atoms of the same element with different
numbers of neutrons
covalent bond - correct answer ✔- weak
- atoms that share electrons
polar covalent - correct answer ✔when 2 atoms do not share electrons
equally
ionic bond - correct answer ✔the complete transfer of a valence electron
between atoms
hydrophilic - correct answer ✔water-loving
hyrdophobic - correct answer ✔water-fearing
, hydrogen bond - correct answer ✔bond between a hydrogen atom and
another atom; WEAK
cohesion - correct answer ✔attraction between hydrogen bonds; creates
surface tension
hypothesis - correct answer ✔testable theory
theory - correct answer ✔- framework of tested hypothesis
- supported by results
- tested repeatedly!!!
Why does ice float on water/ - correct answer ✔h-bonds in ice are spaced
further apart than h-bonds in liquid water which makes ice less dense than
water
What kinds of bonds rely on attraction of positive and negative charges? -
correct answer ✔ionic and hydrogen bonds
What are the most abundant element in the universe? (2) - correct answer
✔hydrogen and helium
isomers - correct answer ✔molecules that have the same chemical formula
but different structures
proteins - correct answer ✔-found in cytoplasm and membrane
nucleic acids - correct answer ✔- found in nucleus
answers rated A+ (19 pgs)
anions - correct answer ✔negative; gain electrons
cations - correct answer ✔positive; lose electrons
cell membrane - correct answer ✔barrier between the inside of the cell and
everything outside of the cell
cytoplasm - correct answer ✔the cytosol and the organelles
cilia - correct answer ✔microtubule projections that help propel the cell
towards food
lipid - correct answer ✔stores energy for the cell
nucleus - correct answer ✔where the cells information(DNA) is stored
lysosome - correct answer ✔help destroy and eliminate waste
proteins in the cell - correct answer ✔act as little machines to detect food
and digest it
biology - correct answer ✔the study of life
atom - correct answer ✔basic unit of matter
,protons - correct answer ✔positively charged particles in the nucleus of an
atom
neutrons - correct answer ✔neutral particles in the nucleus of an atom
electrons - correct answer ✔negatively charged particles that float around
the nucleus
atomic mass - correct answer ✔protons + neutrons
isotopes - correct answer ✔atoms of the same element with different
numbers of neutrons
covalent bond - correct answer ✔- weak
- atoms that share electrons
polar covalent - correct answer ✔when 2 atoms do not share electrons
equally
ionic bond - correct answer ✔the complete transfer of a valence electron
between atoms
hydrophilic - correct answer ✔water-loving
hyrdophobic - correct answer ✔water-fearing
, hydrogen bond - correct answer ✔bond between a hydrogen atom and
another atom; WEAK
cohesion - correct answer ✔attraction between hydrogen bonds; creates
surface tension
hypothesis - correct answer ✔testable theory
theory - correct answer ✔- framework of tested hypothesis
- supported by results
- tested repeatedly!!!
Why does ice float on water/ - correct answer ✔h-bonds in ice are spaced
further apart than h-bonds in liquid water which makes ice less dense than
water
What kinds of bonds rely on attraction of positive and negative charges? -
correct answer ✔ionic and hydrogen bonds
What are the most abundant element in the universe? (2) - correct answer
✔hydrogen and helium
isomers - correct answer ✔molecules that have the same chemical formula
but different structures
proteins - correct answer ✔-found in cytoplasm and membrane
nucleic acids - correct answer ✔- found in nucleus
