Name ______Period ______Date ______
EMSISD 7thGrade Fall Semester Review
1Whatisthemainfunctionofthecirculatorysystem?
ATodistributebloodthroughoutthebody
BToremoveexcessandwastematerialsfromthebody
CTocoordinatetheactionsofthebody
DTosecretehormonesindifferentareasofthebody
2Botha plantanda fungusarecomposedofcells.Accordingtocelltheory,_____ .
Athecellsof aplantcanproducenewcells,butthecellsof afunguscannotproduce newcells
Bthecellsof afunguscanproducenewcells,butthecellsof aplantcannotproduce newcells
Cthecellsofbothorganismsareabletoproducenewcells
Dthecellsofbothorganismsareunabletoproducenewcells
3 Which statement below IS NOT part of the Cell Theory?
AAll plants and animals are composed of cells.
BCells arise from preexisting cells by the process of mitosis
CMitochondria and chloroplasts contain genetic material and can reproduce.
D Cells are specialized which allows an organism to function.
4Whileaboyliftsweights,differentmusclescontractto raisehisarmsandheatis releasedthroughhis skin. Whilehe doesthis,thechemicalenergyinhisbody ____ .
Aremainsthesame
Btransformsintomechanicalenergy
Ctransformsintoheatenergy
Dtransformsintobothmechanicalandheatenergy
5Thehumanurinary (excretory)systemiscomposedofseveraldifferentstructures, including thekidneys,bladder,ureter,anduretha.Whatisthefunctionofthe urinary (excretory)system?
AThetransformationofwasteproducts
BTheeliminationofwasteproducts
CTheintakeofwasteproducts
DThedilutionofwasteproducts
6 The diagram below shows a caterpillar, mold and a fern.
What do these organisms have in common?
AThey are made of cells.
BThey produce their own food.
CThey decompose other organisms.
DThey are disease-causing organisms.
7Whichofthefollowingchemicalsisanorganiccompound?
ASodium Chloride(NaCl)
BPhosphoric Acid(H3PO4)
CLauric Acid(C12H24O2)
DSodium Chlorate(NaClO3)
8Thecellorganellethatfunctionsasthecontrolcenterofa cellisthe .
Anucleus
Bvacuole
Cmitochondria
Dcellwall
9Ascarbohydratesaredigestedandbrokendownbythebody,theyareconverted into ______.
Aaminoacids
Bsugars
Cfats
Dprotein
10Howdothestructuresofavacuoleandanucleusdiffer?
AAvacuoleis enclosedwithinamembrane,andanucleusis notenclosedwithina membrane.
BA vacuoleisa thickfluid,anda nucleusisa rigidset oflayers.
CAvacuolecontainsnowater,andanucleusismostlywater.
DAvacuolecontainsmostlywater,andanucleuscontainsmostlyDNA.
11 Allofthefollowingareexamplesoforgansexceptthe_____ .
Abrain
Bstomach
Ccirculatory system
Dheart
12Whichof thesestepsin thedigestiveprocessis aphysicalchange?
AWaterbeingabsorbedinthelargeintestine
BEnzymesbreakingdownproteinintoaminoacids
CSalivachangingstarchintosugar
DInsulinmetabolizingsimplesugars
Directions:A diagramofgeneticmaterialisshownbelow.Usethediagramandyour knowledgeofsciencetoansweranyquestionsthatfollow.
13 Thediagramindicatesthat _____ .
Atheinheritedtraitsof aflyaredeterminedbythefoodtheflyeats
Btheinheritedtraitsof aflyaredeterminedbythelevelof stresstheparentfly experiences
Ctheinheritedtraitsofafly aredeterminedby thegenesofthefly
Dtheinheritedtraitsof aflyaredeterminedbypredatorsof thefly
14 Thediagrambelowdisplayshistoricalchangesin thefootof aspeciesof bird.
Whatisachangethathasoccurredinthebird'sfootovertime?
AThebird'sfoothasdoubledin size.
BThebird'sfoothasgainedwebbingbetweenthetoes.
CThebird'sfoothaslostatoe.
DThebird'sfoothasgainedfeathers.
15Cricketscommunicatewithothercricketsbychirping.Cricketsthatcannotmakea soundarelesslikelyfinda mateandreproduce.Forthisreason,therearefew cricketsthatcannotmakesound.Thesenonchirpingcricketsarelesslikelyto produceoffspring.Thisis anexampleof _____ .
Alearnedbehavior
Bgeneticreplication
Cnaturalselection
Dselectivebreeding
16Thebestexampleofan inheritedhumantraitis_____ .
Aanewhairstyle
Bskillincatchingaball
Capreferenceforeatingspinach
Dcolorofeyes
17Penguinsareunusualbirds.Theyswimunderwaterbutdonotfly.Penguinslivein someofEarth'scoldestclimateswheretheyfeedonseaanimals.Unlikemostbirds, whichhavebonesthatarehollow,apenguinhassolidbones.Thisdifferencemakesit easierforapenguinto _____ .
Adivedeepunderwater
Bdetectfishunderwater
Cstaywarmunderwater
Dholdsitsbreathunderwater
18 The accompanying diagram illustrates the change that occurred in the physical appearance of a rabbit population over a 10-year period.
Which condition would explain this change over time?
Aa decrease in the mutation rate of the rabbits with black fur
Ba decrease in the advantage of having white fur
Can increase in the advantage of having white fur
Dan increase in the chromosome number of the rabbits with black fur
Directions: The table below shows three foods, the large molecules they are made of, and the smaller molecules they digest into. Some information is missing from the table. Use the table to answer any questions that follow.
19. In the table, X represents
A.fats, and Y represents fatty acids, which fats break down into.
B..proteins, and Y represents polysaccharides, which proteins break down into.
C.proteins, and Y represents that starches, which proteins break down into.
D.starches, and Y represents simple sugars, which starches break down into.
20. Based on the table, the molecules in the bread are broken down into smaller
molecules at W called—
A.fatty acids.
B.simple sugars.
C.polysaccharides.
D.lipids.
21. A girl eats a banana before she goes for a run. Which of the following describes an energy transformation that occurs in the girl's body as the banana is digested?
A. Potential energy in the banana converts to thermal and kinetic energy.
B. Kinetic energy in the banana converts to electrical energy.
C. Kinetic energy in the banana converts to potential and mechanical energy.
D. Mechanical energy in the banana converts to light energy.
22. A scientist could observe all of the following pieces of evidence to support cell theory EXCEPT---
A.a microscopic view of a bacterial cell compared to a thin slice of onion tissue.
B.the organelles of cells compared to the organs of an organism.
C.the compartments that make up a thin slice of a cork plant under a microscope.
D.a group of yeast cells budding into two new cells.
23. All of the following are examples of physical changes that take place in the mouth during digestion EXCEPT when—
A. saliva moistens food particles.
B. salt particles dissolve in the saliva.
C. enzymes in saliva begin to break down complex molecules into smaller ones.
D. large food particles are broken down into smaller ones by chewing.