ATI TEAS Science Exam Questions and
Answers A+ Graded (2025)
What .does .the .respiratory .system .do? .- .CORRECT .ANSWER-Brings .in .oxygen
.to .go .into .the .cells, .and .picks .up .carbon .dioxide .to .be .removed .from .the
.bodyguard
What .are .the .7 .parts .of .the .respiratory .system? .- .CORRECT .ANSWER-1. .Nose
2. .Pharynx
3. .Larynx .(voice .box)
4. .Trachea .(windpipe)
5. .Bronchi
6. .Bronchioles
7. .Alveoli
What .are .alveoli .surrounded .by .to .allow .the .exchange .of .O2 .and .CO2? .-
.CORRECT .ANSWER-Capillaries
What .is .cilia? .- .CORRECT .ANSWER-Tiny .hairs .in .the .nose .and .trachea .that
.wave .particles .up .away .and .out
What .is .mucus? .- .CORRECT .ANSWER-Something .that .keeps .the .air .warm .and
.moist .but .also .traps .particles
What .does .hemoglobin .do? .- .CORRECT .ANSWER-Carries .oxygen .through .the
.blood
What .is .pleura? .- .CORRECT .ANSWER-Sacs .that .surround .the .lungs
What .is .the .diaphragm? .- .CORRECT .ANSWER-The .muscle .at .the .bottom .of .the
.thoracic .cavity
What .happens .during .inhalation? .- .CORRECT .ANSWER-Diaphragm .moves
.down .(contracts), .rib .cage .rises, .volume .of .chest .cavity .increases, .air .moves .in
.to .fill .the .space
What .happens .during .exhalation? .- .CORRECT .ANSWER-Diaphragm .moves .up
.(relaxes), .rib .cage .lowers, .space .becomes .smaller, .air .is .pushed .out .of .lungs
,What .does .the .medulla .oblongata .do? .- .CORRECT .ANSWER-Controls .breathing
What .is .chronic .bronchitis? .- .CORRECT .ANSWER-Bronchi .swell .and .become
.clogged .with .mucus
What .is .emphysema? .- .CORRECT .ANSWER-Tissues .in .lungs .lose .elasticity;
.tissues .can't .enough .O2 .or .get .rid .of .enough .CO2
What .is .lung .cancer? .- .CORRECT .ANSWER-Cells .that .do .not .stop .reproducing;
.can .spread .to .other .locations .because .lungs .are .so .central .and .connected .to
.so .much; .survival .is .generally .less .then .5 .years .from .diagnosis
What .is .elastic .recoil? .- .CORRECT .ANSWER-The .ability .for .the .alveoli .to .get
.filled .with .air .then .return .to .their .normal .shape .once .the .air .is .released
What .is .a .spirometer? .- .CORRECT .ANSWER-an .instrument .for .measuring .the
.air .capacity .of .the .lungs
What .is .tidal .volume? .- .CORRECT .ANSWER-The .amount .of .air .taken .in .and
.breathed .out .in .a .typical .breath
What .is .supplemental .volume? .- .CORRECT .ANSWER-The .xtra .air .that .can .be
.inhaled .or .exhaled .with .a .deep .breath
What .is .reserve .amount? .- .CORRECT .ANSWER-The .amount .of .extra .air .you
.can .breathe .out .when .you .force .air .out .of .your .lungs
What .is .residual .amount? .- .CORRECT .ANSWER-The .amount .of .air .in .your
.lungs .that .you .cannot .get .rid .of .(even .during .forced .exhaling)
What .is .vital .capacity? .- .CORRECT .ANSWER-All .the .air .you .can .control .going
.in .or .out .of .your .lungs .(supplemental .+ .reserve .= .vital)
What .is .total .capacity? .- .CORRECT .ANSWER-From .the .top .of .your
.supplemental .amount .to .the .bottom .of .your .residual .volume
Main .idea .- .CORRECT .ANSWER-the .most .important .or .central .thought .of .a
.paragraph .or .larger .section .of .text, .which .tells .the .reader .what .the .text .is
.about
Topic .- .CORRECT .ANSWER-a .particular .issue .or .idea .that .serves .as .the .subject
.of .a .paragraph, .essay, .report, .or .speech
-topic .is .the .general .subject .of .a .paragraph .
-Topics .are .simple .and .are .described .with .just .a .word .or .a .phrase. .
-main .idea .is .a .complete .sentence; .it .includes .the .topic .- .CORRECT .ANSWER-
What's .the .difference .between .a .topic .and .main .idea?
,Key .ideas .- .CORRECT .ANSWER-Ideas .that .support .controlling .idea
Controlling .idea .- .CORRECT .ANSWER--your .opinion .about .the .topic.
- .It .helps .the .reader .understand .your .purpose .for .writing .the .paragraph .or
.essay
Conclusion .- .CORRECT .ANSWER-A .deduction .made .by .the .reader .about .an
.unstated .outcome .from .reading .passage
Inference .- .CORRECT .ANSWER-A .conclusion .one .can .draw .from .the .presented
.details.
anatomical .position .- .CORRECT .ANSWER-a .standard .position .in .which .the
.body .is .facing .forward, .the .feet .are .parallel .to .each .other, .and .the .arms .are .at
.the .sides .with .the .palms .facing .forward
Cells .- .CORRECT .ANSWER-The .basic .unit .of .structure .and .function .in .all .living
.things
Cellular .functions .- .CORRECT .ANSWER-Processes .that .include .growth,
.metabolism, .replication, .protein .synthesis, .and .movement
Directional .terminology .- .CORRECT .ANSWER-Words .used .to .explain
.relationships .of .locations .of .anatomical .elements .(distal, .posterior, .medial, .etc.)
organ .system .- .CORRECT .ANSWER-A .group .of .organs .that .work .together .in
.performing .vital .body .functions.
Organelle .- .CORRECT .ANSWER-specialized .structure .that .performs .important
.cellular .functions .within .a .eukaryotic .cell
Organ .- .CORRECT .ANSWER-A .collection .of .tissues .that .carry .out .a .specialized
.function .of .the .body
Reference .Planes .- .CORRECT .ANSWER-Planes .dividing .the .body .to .describe
.locations
(ex: .sagittal, .coronal, .and .transverse)
Tissue .- .CORRECT .ANSWER-A .group .of .similar .cells .that .perform .a .specific
.function.
Eukaryotic .cells .- .CORRECT .ANSWER-Contain .a .nucleus .and .other .organelles
.that .are .bound .by .membranes.
prokaryotic .cell .- .CORRECT .ANSWER-cell .that .does .not .have .a .nucleus .or
.other .membrane-bound .organelles. .(Bacteria)
Ribosome .- .CORRECT .ANSWER-site .of .protein .synthesis
, Nucleus .- .CORRECT .ANSWER-A .part .of .the .cell .containing .DNA .and .RNA .and
.responsible .for .growth .and .reproduction
Nucleolus .- .CORRECT .ANSWER-Found .inside .the .nucleus .and .produces
.ribosomes
Cytoplasm .- .CORRECT .ANSWER-A .jellylike .fluid .inside .the .cell .in .which .the
.organelles .are .suspended
Gogli .Apparatus .- .CORRECT .ANSWER-organelle .in .cells .that .modifies, .sorts,
.and .packages .prooteins .and .other .materials .from .the .endoplasmic .reticulum
.for .storage .in .the .cell .or .release .outside .the .cell
Vacuole .- .CORRECT .ANSWER-A .sac .inside .a .cell .that .acts .as .a .storage .area
Smooth .Endoplasmic .Reticulum .- .CORRECT .ANSWER-creates .lipids .or .fat
Rough .Endoplasmic .Reticulum .- .CORRECT .ANSWER-An .endomembrane
.system .covered .with .ribosomes .where .many .proteins .for .transport .are
.assembled.
Mitochondria .- .CORRECT .ANSWER-Powerhouse .of .the .cell, .organelle .that .is .the
.site .of .ATP .(energy) .production
DNA .- .CORRECT .ANSWER-A .complex .molecule .containing .the .genetic
.information .that .makes .up .the .chromosomes.
RNA .- .CORRECT .ANSWER-A .single-stranded .nucleic .acid .that .passes .along
.genetic .messages
Mitosis .- .CORRECT .ANSWER-part .of .eukaryotic .cell .division .during .which .the
.cell .nucleus .divides
-four-stage .process .that .creates .two .identical .cells .from .one .original .cell.
ATP .- .CORRECT .ANSWER-(adenosine .triphosphate) .main .energy .source .that
.cells .use .for .most .of .their .work
Lysosomes .- .CORRECT .ANSWER-cell .organelle .filled .with .enzymes .needed .to
.break .down .certain .materials .in .the .cell
cell .membrane .- .CORRECT .ANSWER-thin, .flexible .barrier .around .a .cell;
.regulates .what .enters .and .leaves .the .cell
Cell .wall .- .CORRECT .ANSWER-found .only .in .plant .and .bacteria .this .structure .is
.found .outside .the .cell .membrane .and .serves .as .a .more .rigid .protective .barrier
mRNA .- .CORRECT .ANSWER-messenger .RNA; .type .of .RNA .that .carries
.instructions .from .DNA .in .the .nucleus .to .the .ribosome
Answers A+ Graded (2025)
What .does .the .respiratory .system .do? .- .CORRECT .ANSWER-Brings .in .oxygen
.to .go .into .the .cells, .and .picks .up .carbon .dioxide .to .be .removed .from .the
.bodyguard
What .are .the .7 .parts .of .the .respiratory .system? .- .CORRECT .ANSWER-1. .Nose
2. .Pharynx
3. .Larynx .(voice .box)
4. .Trachea .(windpipe)
5. .Bronchi
6. .Bronchioles
7. .Alveoli
What .are .alveoli .surrounded .by .to .allow .the .exchange .of .O2 .and .CO2? .-
.CORRECT .ANSWER-Capillaries
What .is .cilia? .- .CORRECT .ANSWER-Tiny .hairs .in .the .nose .and .trachea .that
.wave .particles .up .away .and .out
What .is .mucus? .- .CORRECT .ANSWER-Something .that .keeps .the .air .warm .and
.moist .but .also .traps .particles
What .does .hemoglobin .do? .- .CORRECT .ANSWER-Carries .oxygen .through .the
.blood
What .is .pleura? .- .CORRECT .ANSWER-Sacs .that .surround .the .lungs
What .is .the .diaphragm? .- .CORRECT .ANSWER-The .muscle .at .the .bottom .of .the
.thoracic .cavity
What .happens .during .inhalation? .- .CORRECT .ANSWER-Diaphragm .moves
.down .(contracts), .rib .cage .rises, .volume .of .chest .cavity .increases, .air .moves .in
.to .fill .the .space
What .happens .during .exhalation? .- .CORRECT .ANSWER-Diaphragm .moves .up
.(relaxes), .rib .cage .lowers, .space .becomes .smaller, .air .is .pushed .out .of .lungs
,What .does .the .medulla .oblongata .do? .- .CORRECT .ANSWER-Controls .breathing
What .is .chronic .bronchitis? .- .CORRECT .ANSWER-Bronchi .swell .and .become
.clogged .with .mucus
What .is .emphysema? .- .CORRECT .ANSWER-Tissues .in .lungs .lose .elasticity;
.tissues .can't .enough .O2 .or .get .rid .of .enough .CO2
What .is .lung .cancer? .- .CORRECT .ANSWER-Cells .that .do .not .stop .reproducing;
.can .spread .to .other .locations .because .lungs .are .so .central .and .connected .to
.so .much; .survival .is .generally .less .then .5 .years .from .diagnosis
What .is .elastic .recoil? .- .CORRECT .ANSWER-The .ability .for .the .alveoli .to .get
.filled .with .air .then .return .to .their .normal .shape .once .the .air .is .released
What .is .a .spirometer? .- .CORRECT .ANSWER-an .instrument .for .measuring .the
.air .capacity .of .the .lungs
What .is .tidal .volume? .- .CORRECT .ANSWER-The .amount .of .air .taken .in .and
.breathed .out .in .a .typical .breath
What .is .supplemental .volume? .- .CORRECT .ANSWER-The .xtra .air .that .can .be
.inhaled .or .exhaled .with .a .deep .breath
What .is .reserve .amount? .- .CORRECT .ANSWER-The .amount .of .extra .air .you
.can .breathe .out .when .you .force .air .out .of .your .lungs
What .is .residual .amount? .- .CORRECT .ANSWER-The .amount .of .air .in .your
.lungs .that .you .cannot .get .rid .of .(even .during .forced .exhaling)
What .is .vital .capacity? .- .CORRECT .ANSWER-All .the .air .you .can .control .going
.in .or .out .of .your .lungs .(supplemental .+ .reserve .= .vital)
What .is .total .capacity? .- .CORRECT .ANSWER-From .the .top .of .your
.supplemental .amount .to .the .bottom .of .your .residual .volume
Main .idea .- .CORRECT .ANSWER-the .most .important .or .central .thought .of .a
.paragraph .or .larger .section .of .text, .which .tells .the .reader .what .the .text .is
.about
Topic .- .CORRECT .ANSWER-a .particular .issue .or .idea .that .serves .as .the .subject
.of .a .paragraph, .essay, .report, .or .speech
-topic .is .the .general .subject .of .a .paragraph .
-Topics .are .simple .and .are .described .with .just .a .word .or .a .phrase. .
-main .idea .is .a .complete .sentence; .it .includes .the .topic .- .CORRECT .ANSWER-
What's .the .difference .between .a .topic .and .main .idea?
,Key .ideas .- .CORRECT .ANSWER-Ideas .that .support .controlling .idea
Controlling .idea .- .CORRECT .ANSWER--your .opinion .about .the .topic.
- .It .helps .the .reader .understand .your .purpose .for .writing .the .paragraph .or
.essay
Conclusion .- .CORRECT .ANSWER-A .deduction .made .by .the .reader .about .an
.unstated .outcome .from .reading .passage
Inference .- .CORRECT .ANSWER-A .conclusion .one .can .draw .from .the .presented
.details.
anatomical .position .- .CORRECT .ANSWER-a .standard .position .in .which .the
.body .is .facing .forward, .the .feet .are .parallel .to .each .other, .and .the .arms .are .at
.the .sides .with .the .palms .facing .forward
Cells .- .CORRECT .ANSWER-The .basic .unit .of .structure .and .function .in .all .living
.things
Cellular .functions .- .CORRECT .ANSWER-Processes .that .include .growth,
.metabolism, .replication, .protein .synthesis, .and .movement
Directional .terminology .- .CORRECT .ANSWER-Words .used .to .explain
.relationships .of .locations .of .anatomical .elements .(distal, .posterior, .medial, .etc.)
organ .system .- .CORRECT .ANSWER-A .group .of .organs .that .work .together .in
.performing .vital .body .functions.
Organelle .- .CORRECT .ANSWER-specialized .structure .that .performs .important
.cellular .functions .within .a .eukaryotic .cell
Organ .- .CORRECT .ANSWER-A .collection .of .tissues .that .carry .out .a .specialized
.function .of .the .body
Reference .Planes .- .CORRECT .ANSWER-Planes .dividing .the .body .to .describe
.locations
(ex: .sagittal, .coronal, .and .transverse)
Tissue .- .CORRECT .ANSWER-A .group .of .similar .cells .that .perform .a .specific
.function.
Eukaryotic .cells .- .CORRECT .ANSWER-Contain .a .nucleus .and .other .organelles
.that .are .bound .by .membranes.
prokaryotic .cell .- .CORRECT .ANSWER-cell .that .does .not .have .a .nucleus .or
.other .membrane-bound .organelles. .(Bacteria)
Ribosome .- .CORRECT .ANSWER-site .of .protein .synthesis
, Nucleus .- .CORRECT .ANSWER-A .part .of .the .cell .containing .DNA .and .RNA .and
.responsible .for .growth .and .reproduction
Nucleolus .- .CORRECT .ANSWER-Found .inside .the .nucleus .and .produces
.ribosomes
Cytoplasm .- .CORRECT .ANSWER-A .jellylike .fluid .inside .the .cell .in .which .the
.organelles .are .suspended
Gogli .Apparatus .- .CORRECT .ANSWER-organelle .in .cells .that .modifies, .sorts,
.and .packages .prooteins .and .other .materials .from .the .endoplasmic .reticulum
.for .storage .in .the .cell .or .release .outside .the .cell
Vacuole .- .CORRECT .ANSWER-A .sac .inside .a .cell .that .acts .as .a .storage .area
Smooth .Endoplasmic .Reticulum .- .CORRECT .ANSWER-creates .lipids .or .fat
Rough .Endoplasmic .Reticulum .- .CORRECT .ANSWER-An .endomembrane
.system .covered .with .ribosomes .where .many .proteins .for .transport .are
.assembled.
Mitochondria .- .CORRECT .ANSWER-Powerhouse .of .the .cell, .organelle .that .is .the
.site .of .ATP .(energy) .production
DNA .- .CORRECT .ANSWER-A .complex .molecule .containing .the .genetic
.information .that .makes .up .the .chromosomes.
RNA .- .CORRECT .ANSWER-A .single-stranded .nucleic .acid .that .passes .along
.genetic .messages
Mitosis .- .CORRECT .ANSWER-part .of .eukaryotic .cell .division .during .which .the
.cell .nucleus .divides
-four-stage .process .that .creates .two .identical .cells .from .one .original .cell.
ATP .- .CORRECT .ANSWER-(adenosine .triphosphate) .main .energy .source .that
.cells .use .for .most .of .their .work
Lysosomes .- .CORRECT .ANSWER-cell .organelle .filled .with .enzymes .needed .to
.break .down .certain .materials .in .the .cell
cell .membrane .- .CORRECT .ANSWER-thin, .flexible .barrier .around .a .cell;
.regulates .what .enters .and .leaves .the .cell
Cell .wall .- .CORRECT .ANSWER-found .only .in .plant .and .bacteria .this .structure .is
.found .outside .the .cell .membrane .and .serves .as .a .more .rigid .protective .barrier
mRNA .- .CORRECT .ANSWER-messenger .RNA; .type .of .RNA .that .carries
.instructions .from .DNA .in .the .nucleus .to .the .ribosome
