ACCUPLACER BIOLOGY PLACEMENT EXAM REVIEW QUESTIONS WITH CORECT ANSWERS

ACCUPLACER BIOLOGY PLACEMENT EXAM REVIEW QUESTIONS
WITH
CORECT ANSWERS 2025/2026


Science o as o a o process o - o CORRECT o ANSWER o -Scientific o Method



Steps o of o the o Scientific o method o - o CORRECT o ANSWER o -
Ask oa oquestion, oresearch othe oquestion, omake oa ohypothesis, oexperiment, oanalyze othe
odata, oco o me o to o a o conclusion, o and o communicate o the o conclusion o to o your
o peers.




Hypothesis o - o CORRECT o ANSWER o -
A o testable o prediction o based o on o what o is o usually o a o limited o amount o of o data. o Can
o be o either o prov oed o or odisproven o by o experimentation.




Testing o the o hypothesis o - o CORRECT o ANSWER o -
A ohypothesis ois otested othrough oexperimentation oand oresearch. oIf ovalid oresearch
ocontraindicat o es o the o hypothesis, o an o alternate o hypothesis o will o have o to o be
o proposed.




Variables o - o CORRECT o ANSWER o -
Variables o are o factors o that o change o in o an o experiment. o The o independent o variable o is
o the o cause, o t ohe o dependent o is o the o result. o The o experimenter o usually o controls
o the o independent o variable.




Data o - o CORRECT o ANSWER o -
Data ois ofacts oand ostatistic othat oare ogathered. oData ocan oeither osupport oa ohypothesis,
obe oirrelev o ant o to o it, o or o contradict o it.




Supporting/falsifying o the o hypothesis o - o CORRECT o ANSWER o -
Support o is o in o favor o of o the o hypothesis. o For o example, o the o existence o of o gravity
o being o consistent ois osupported oby oan oapple oand ofeather ofalling oto othe oground oat othe

,osame ospeed oin oa ovacuum ochamber. oHowever, oa ofalsifiable ohypothesis ois oable oto obe
odisproven, oand oa oclaim osuch oas o"all oswans o are o white" o would o be o falsified o by o the
o observation o of o a o swan o that o is o not o white.

,Chemistry o - o CORRECT o ANSWER o -
Chemistry o is o the o study o of o the o properties o of o matter o and o the o behavior o of o matter.



Matter o - o CORRECT o ANSWER o -Matter o is o anything o that o has o mass, o and o takes o up
o space.




Elements o - o CORRECT o ANSWER o -
Elements o are o substances o that o cannot o be o broken o down o into o simpler o substances o by
o chemical omeans. o They o are ocomprised o of o electrons, o neutrons, o and o protons.




Atoms o - o CORRECT o ANSWER o -Atoms o are o elements.



Atomic o number, o atomic o mass o - o CORRECT o ANSWER o -
Number o of o protons o is o atomic o number. o Atomic o mass o is o protons o + o neutrons.



Subatomic o particles o - o CORRECT o ANSWER o -protons, o neutrons, o electrons. o There o are
o more osub- osubatomic o particles o but o those o are o not o of o concern o right o now.




Atomic o Bonds o - o CORRECT o ANSWER o -
Bonds o that o hold o atoms o together o to o make o a o compound. o They o include o ionic,
o covalent, o and o me otallic o bonds.




Ionic o - o CORRECT o ANSWER o -
Ionic o bonds o occur o when o one o atom o gives o its o valence o electron o to o an o atom o in
o need o of o an o elect oron. o Ions o are opositively o or o negatively o charged o atoms.




salts o - o CORRECT o ANSWER o -
Ionic o compounds o that o can o be o formed o by o replacing o one o or o more o of o the
o hydrogen o ions o of o an oacid o with o another o positive o ion

, Covalent o - o CORRECT o ANSWER o -
A o chemical o bond o that o involves o sharing o a o pair o of o electrons o between o atoms o in o a
o molecule




molecules o - o CORRECT o ANSWER o -
Groups o of o two o or o more o atoms o held o together o by o chemical o bonds



Hydrogen o - o CORRECT o ANSWER o -
Hydrogen o is o an o element o with o symbol o H o and o atomic o number o 1. o Hydrogen o combines
o with o non
-
metallic oelements oto oform owater oand oother oorganic ocompounds. oIt ohas oon oelectron oin
oits ovale o nce o shell o and o is o capable o of o gaining o one o more o to o obtain o a o full
o valence o shell, o which o will o give o it oa o negative o charge. o A o hydrogen o with o no
o electrons o is o H+.




Water o - o CORRECT o ANSWER o -H2O, o universal o solvent, o ph o of o 7. o Non-polar



Polarity o of o the o molecule o - o CORRECT o ANSWER o -
The o sum o of o all o the o bond o polarities o in o the o molecule. o More o positive o bonds o then
o negative o bond os o makes o a opositive o polar o molecule, o and o vice o versa




Electro-negativity o - o CORRECT o ANSWER o -
A o measure o of o the o ability o of o an o atom o in o a o chemical o compound o to o attract
o electrons. o Top- oright o of o periodic o table o is o most o electronegative, o bottom o left
o is o least




H o bonds o between o molecules o - o CORRECT o ANSWER o -
the o attractive o force o between o the o hydrogen o attached o to o an o electronegative o atom
o of o one o mole ocule o and o an o electronegative o atom o of o a odifferent omolecule




Good o polar o solvent o - o CORRECT o ANSWER o -water!