BYU Cell 120 Exam 2 Practice Exam With Complete Questions And Correct
Answers
hypothesis - ANSWERspecific, easy to falsify, difficult to verify
null hypothesis - ANSWERno significant difference. one variable has no
association with another
alternative hypothesis - ANSWERopposite of the null hypothesis (variables
are associated)
independent variable - ANSWERwhat is manipulated or controlled (x axis or
rows)
dependent variable - ANSWERmeasured response (y axis or columns)
parameters - ANSWERquantity represented by the variables (height, weight,
etc)
dimensions - ANSWERunits of measurement (meters, grams)
negative control - ANSWERgroup that receives no treatment, placebo, or only
part of treatment (always done)
, positive control - ANSWERgroup that receives treatment that is already
known to work (not always done)
prokaryotes - ANSWERno nucleus, nucleoid instead
no membrane-bound organelles
usually single-celled, call
flagella
eukaryotes - ANSWERnucleus
membrane-bound organelles
larger, multiple cells
cytoplasm/cytosol - ANSWERgelatin-like substance inside cells. flows and
provides support, transport to cells
cell membrane - ANSWERouter covering, protective layer that encases all
cells. allows food, O2, H2O to enter cell, allows waste to leave cell
cytoskeleton - ANSWERprotein structures (scaffolding) in cytoplasm that help
cell maintain or change its shape
ribosomes - ANSWERcreates proteins
organelles found in all cells - ANSWERcytoplasm/cytosol
cell membrane
cytoskeleton
Answers
hypothesis - ANSWERspecific, easy to falsify, difficult to verify
null hypothesis - ANSWERno significant difference. one variable has no
association with another
alternative hypothesis - ANSWERopposite of the null hypothesis (variables
are associated)
independent variable - ANSWERwhat is manipulated or controlled (x axis or
rows)
dependent variable - ANSWERmeasured response (y axis or columns)
parameters - ANSWERquantity represented by the variables (height, weight,
etc)
dimensions - ANSWERunits of measurement (meters, grams)
negative control - ANSWERgroup that receives no treatment, placebo, or only
part of treatment (always done)
, positive control - ANSWERgroup that receives treatment that is already
known to work (not always done)
prokaryotes - ANSWERno nucleus, nucleoid instead
no membrane-bound organelles
usually single-celled, call
flagella
eukaryotes - ANSWERnucleus
membrane-bound organelles
larger, multiple cells
cytoplasm/cytosol - ANSWERgelatin-like substance inside cells. flows and
provides support, transport to cells
cell membrane - ANSWERouter covering, protective layer that encases all
cells. allows food, O2, H2O to enter cell, allows waste to leave cell
cytoskeleton - ANSWERprotein structures (scaffolding) in cytoplasm that help
cell maintain or change its shape
ribosomes - ANSWERcreates proteins
organelles found in all cells - ANSWERcytoplasm/cytosol
cell membrane
cytoskeleton
