BIOLOGY LAB PRACTICAL 1 QUESTIONS AND CORRECT VERIFIED ANSWERS

BIOLOGY LAB PRACTICAL 1 QUESTIONS
AND CORRECT VERIFIED ANSWERS
occularA2-A2Ans--pairA2ofA2lensesA2nearestA2theA2eyesA2magnifyA210x

bodyA2tubeA2-A2Ans--
supportsA2theA2ocularsA2andA2revolvingA2nosepieceA2withA2itsA2magnifyingA2elements

revolvingA2nosepieceA2-A2Ans--aA2rotatingA2structureA2withA2fourA2objectives

objectivesA2-A2Ans--
scanningA2(4x),A2mediumA2(10x),A2highA2(40x),A2andA2oilA2immersionA2(100x)

mechanicalA2stageA2-A2Ans--
horizontalA2plateA2withA2aA2slideA2holderA2mountedA2onA2itA2andA2twoA2slideA2adjustingA2Kn
obs

substageA2condenserA2-A2Ans--
aA2systemA2ofA2lensesA2thatA2concentratesA2theA2lightA2fromA2theA2illuminatorA2ontoA2theA2
specifmen

irisA2diaphragmA2-A2Ans--aA2shutter-
likeA2structureA2belowA2theA2substageA2condenserA2thatA2regulatesA2theA2amountA2ofA2ligh
tA2passingA2throughA2toA2theA2specimen

illuminatorA2-A2Ans--sourceA2ofA2light

armA2-A2Ans--supportsA2theA2bodyA2tubeA2andA2adjustmentA2knobs

fineA2adjustmentA2knobA2-A2Ans--
smallerA2knobA2whichA2movesA2theA2mechanicalA2stageA2onA2aA2lesserA2scale

baseA2-A2Ans--bearsA2theA2weightA2ofA2theA2microscope...

resolutionA2-A2Ans--
measurementA2ofA2howA2clearA2theA2distanceA2betweenA2twoA2linesA2isA2-
unaided,A2humansA2cannotA2distinguishA2betweenA2linesA2thatA2areA2lessA2thanA2100A2mic
ronsA2(.1mm)A2apart

fieldA2ofA2viewA2-A2Ans--circularA2fieldA2seenA2whenA2viewedA2throughA2theA2occulars

(di/DL)A2=A2(XL/Xi)A2-A2Ans--diameterA2ofA2unknownA2=A2(4mm*powerA2underA2low)/
(powerA2atA2unknownA2diameter)

, cellA2wallA2-A2Ans--
rigid,A2transparentA2structureA2thatA2liesA2outsideA2ofA2plantA2cellA2membranes.A2IsA2comp
osedA2ofA2celluloseA2embeddedA2inA2aA2matrixA2ofA2otherA2polysaccharidesA2andA2protein
s.

centralA2vacuoleA2-A2Ans--
IsA2inA2matureA2plants,A2andA2isA2enclosedA2inA2aA2membraneA2calledA2theA2tonoplastA2-
holdsA2thingsA2forA2theA2cell

chloroplastsA2-A2Ans--organellesA2containingA2enzymesA2andA2photosyntheticA2pigments

erythrocytesA2-A2Ans--redA2bloodA2cells

leukocytesA2-A2Ans--whiteA2bloodA2cells

plateletsA2-A2Ans--
purpleA2orA2grayA2flecksA2scatteredA2betweenA2redA2andA2whiteA2bloodA2cells.A2Originated
A2inA2theA2redA2boneA2marrow,A2andA2areA2actuallyA2cytoplasmicA2fragments


organicA2compoundA2-A2Ans--containsA2carbonA2inA2theA2formsA2ofA2chainsA2orA2rings

85A2-A2Ans--cellA2waterA2percentage

carbohydratesA2-A2Ans--1:2:1,A2C:H:O

glucoseA2-A2Ans--sixA2carbonA2monosaccharide

sucroseA2-A2Ans--tableA2sugarA2isA2aA2disaccharide

ProteinsA2-A2Ans--Hydrogen,A2amino,A2RA2group,A2andA2carboxylA2group

lipidsA2-A2Ans--fatsA2andA2oils

NucleotidesA2-A2Ans--
containA2aA2fiveA2carbonA2sugar,A2aA2nitrogenousA2base,A2andA2aA2phosphateA2group

dehydrationA2synthesisA2-A2Ans--whenA2twoA2monomersA2areA2joinedA2together...

reducingA2sugarsA2-A2Ans--
allA2monosaccharides,A2andA2someA2disaccharidesA2thatA2haveA2aA2freeA2carbonylA2group
A2inA2closeA2proximityA2toA2aA2hydroxylA2group


benedictsA2-A2Ans--
testA2forA2reducingA2sugarA2thatA2isA2madeA2ofA2copperA2ionsA2thatA2turnA2fromA2blueA2toA2
yellow,A2orange,A2brickA2red,A2orA2brownA2inA2theA2presenceA2ofA2heatA2andA2aA2reducingA
2sugars