PORTAGE LEARNING
BIOCHEMISTRY 210: MODULE 1
EXAM - THE AMAZING WORLD OF
BIOCHEMISTRY QUESTIONS AND
ANSWERS
What 5dqxare 5dqxthree 5dqxways 5dqxthat 5dqxbiochemists 5dqxstudy 5dqxbiological
5dqxorganisms? 5dqx- 5dqxANSWERS--1. 5dqxThe 5dqxrelationship 5dqxbetween 5dqxstructure
5dqxand 5dqxfunction 5dqxof 5dqxbiomolecules.
2. 5dqxThe 5dqxchemical 5dqxreactions 5dqxof 5dqxorganisms 5dqxand 5dqxor 5dqxmetabolism.
3. 5dqxCommunication 5dqxwith 5dqxand 5dqxamong 5dqxorganisms.
What 5dqxis 5dqxthe 5dqxdefinition 5dqxof 5dqxbiochemistry? 5dqx- 5dqxANSWERS--Biochemistry
5dqxis 5dqxreferred 5dqxto 5dqxas 5dqxthe 5dqx'chemistry 5dqxof 5dqxlife' 5dqxas 5dqxit 5dqxinvestigates
5dqxhow 5dqxthe 5dqxproperties 5dqxof 5dqxorganisms 5dqxrelate 5dqxto 5dqxtheir 5dqxmolecules.
What 5dqxelements 5dqxare 5dqximportant 5dqxto 5dqxhuman 5dqxlife? 5dqx- 5dqxANSWERS--Bulk
5dqxelements 5dqxand 5dqxtrace 5dqxelements.
Bulk 5dqxelements 5dqxconsists 5dqxof 5dqxnon-metals 5dqxand 5dqxtrace 5dqxelements
5dqxconsist 5dqxof 5dqxtransition 5dqxmetals 5dqxand 5dqxmetals. 5dqx
Trace 5dqxelements 5dqxare 5dqximportant 5dqxin 5dqxsmall 5dqxamounts.
What 5dqxare 5dqxconsidered 5dqxbulk 5dqxelements? 5dqx- 5dqxANSWERS--C, 5dqxH, 5dqxN,
5dqxO, 5dqxP, 5dqxS, 5dqxCl, 5dqxNa, 5dqxK, 5dqxCa.
What 5dqxare 5dqxconsidered 5dqxtrace 5dqxelements? 5dqx- 5dqxANSWERS--Mg, 5dqxV, 5dqxCr,
5dqxMn, 5dqxFe, 5dqxCo, 5dqxNi, 5dqxCu, 5dqxZn, 5dqxMo, 5dqxW, 5dqxSe, 5dqxI.
What 5dqxis 5dqxanother 5dqxname 5dqxfor 5dqxfirefly? 5dqx- 5dqxANSWERS--Lightning 5dqxbug
5dqxor 5dqxglow 5dqxworm. 5dqxFireflies 5dqxare 5dqxalso 5dqxknown 5dqxto 5dqxbe 5dqxbeetles.
What 5dqxare 5dqxthe 5dqxdifferent 5dqxbond 5dqxshapes? 5dqx- 5dqxANSWERS--Linear,
5dqxTrigonal 5dqxplanar, 5dqxTrigonal 5dqxpyramidal, 5dqxTetrahedral, 5dqxBent.
Linear 5dqx- 5dqxANSWERS--180 5dqxdegrees, 5dqxsp 5dqxhybridization. 5dqx
A 5dqxstraight-line 5dqxarrangement 5dqxof 5dqxatoms.
Trigonal 5dqxPlanar 5dqx- 5dqxANSWERS--120 5dqxdegrees, 5dqxsp2 5dqxhybridization. 5dqx
, A 5dqxcentral 5dqxatom 5dqxwith 5dqxthree 5dqxbonded 5dqxgroups 5dqxin 5dqxa 5dqxflat, 5dqxplanar
5dqxstructure.
Trigonal 5dqxPyramidal 5dqx- 5dqxANSWERS--107.5 5dqxdegrees, 5dqxsp3 5dqxhybridization.
A 5dqxtrigonal 5dqxpyramidal 5dqxshape 5dqxoccurs 5dqxwhen 5dqxa 5dqxcentral 5dqxatom 5dqxforms
5dqxthree 5dqxbonds 5dqxand 5dqxhas 5dqxone 5dqxlone 5dqxpair 5dqxof 5dqxelectrons.
Tetrahedral 5dqx- 5dqxANSWERS--109.5 5dqxdegrees, 5dqxsp3 5dqxhybridization. 5dqx
A 5dqxcentral 5dqxatom 5dqxwith 5dqxfour 5dqxsingle 5dqxbonds, 5dqxforming 5dqxa 5dqx3D
5dqxtetrahedron.
Bent 5dqx- 5dqxANSWERS--104.5 5dqxdegrees, 5dqxsp3 5dqxhybridization. 5dqx120 5dqxdegrees,
5dqxsp2 5dqxhybridization. 5dqx
Water: 5dqxThe 5dqxcentral 5dqxatom 5dqxhas 5dqxfour 5dqxelectron 5dqxdomains 5dqx(two
5dqxbonded 5dqxatoms 5dqx+ 5dqxtwo 5dqxlone 5dqxpairs). 5dqxThe 5dqxincreased 5dqxlone 5dqxpair
5dqxrepulsion 5dqxfurther 5dqxreduces 5dqxthe 5dqxbond 5dqxangle 5dqxfrom 5dqxthe 5dqxideal
5dqxtetrahedral 5dqx(~109.5°) 5dqxto 5dqx~104.5°.
What 5dqxis 5dqxknown 5dqxas 5dqxthe 5dqx"medium 5dqxof 5dqxlife"? 5dqx- 5dqxANSWERS--Water
5dqxis 5dqxknown 5dqxas 5dqxthe 5dqx"medium 5dqxof 5dqxlife" 5dqxbecause 5dqxit 5dqxmakes 5dqxup
5dqx70% 5dqxor 5dqxmore 5dqxof 5dqxliving 5dqxthings. 5dqxIn 5dqxhumans, 5dqxwater 5dqxis 5dqxknown
5dqxto 5dqxmake 5dqxup 5dqxa 5dqxlarge 5dqxportion 5dqxof 5dqxblood.
Are 5dqxtransition 5dqxmetals 5dqxcommonly 5dqxfound 5dqxin 5dqxbiological 5dqxorganisms? 5dqx-
5dqxANSWERS--Yes, 5dqxtransition 5dqxmetals 5dqxare 5dqxcommonly 5dqxfound 5dqxin
5dqxbiological 5dqxorganisms 5dqxin 5dqxtrace 5dqxamounts 5dqxor 5dqxsmall 5dqxquantities. 5dqx
For 5dqxexample, 5dqxIron 5dqx(Fe) 5dqxis 5dqxsignificant 5dqxin 5dqxthe 5dqxtransport 5dqxof
5dqxoxygen. 5dqxIron 5dqxis 5dqxa 5dqxmineral 5dqxfound 5dqxwithin 5dqxthe 5dqxprotein
5dqxhemoglobin 5dqxin 5dqxred 5dqxblood 5dqxcells 5dqxand 5dqxhelps 5dqxoxygen 5dqxto 5dqxbe
5dqxdistributed 5dqxfrom 5dqxthe 5dqxlungs 5dqxto 5dqxother 5dqxtissues 5dqxin 5dqxthe 5dqxbody.
Can 5dqxwater 5dqxcan 5dqxmake 5dqxup 5dqx85% 5dqx(by 5dqxmass) 5dqxof 5dqxa 5dqxliving
5dqxorganism. 5dqx- 5dqxANSWERS--Yes. 5dqxSome 5dqxplants 5dqxare 5dqx90% 5dqxwater 5dqxby
5dqxmass.
Properties 5dqxof 5dqxH20 5dqx- 5dqxANSWERS--Water 5dqxis 5dqxpolar 5dqxas 5dqxhydrogen
5dqxunequally 5dqxshares 5dqxelectrons 5dqxwith 5dqxoxygen. 5dqxIt 5dqxhas 5dqxa 5dqxbent
5dqxshape 5dqxdue 5dqxto 5dqxthe 5dqxrepulsion 5dqxof 5dqxelectrons.
Oxygen 5dqxis 5dqxmore 5dqxelectronegative 5dqxthan 5dqxhydrogen 5dqxwhich 5dqxis 5dqxwhy 5dqxit
5dqxis 5dqxa 5dqxpolar 5dqxmolecule.
Why 5dqxare 5dqxsmaller 5dqxelements 5dqxfavored? 5dqx- 5dqxANSWERS--They 5dqxcan
5dqxform 5dqxstable 5dqxcovalent 5dqxbonds.
BIOCHEMISTRY 210: MODULE 1
EXAM - THE AMAZING WORLD OF
BIOCHEMISTRY QUESTIONS AND
ANSWERS
What 5dqxare 5dqxthree 5dqxways 5dqxthat 5dqxbiochemists 5dqxstudy 5dqxbiological
5dqxorganisms? 5dqx- 5dqxANSWERS--1. 5dqxThe 5dqxrelationship 5dqxbetween 5dqxstructure
5dqxand 5dqxfunction 5dqxof 5dqxbiomolecules.
2. 5dqxThe 5dqxchemical 5dqxreactions 5dqxof 5dqxorganisms 5dqxand 5dqxor 5dqxmetabolism.
3. 5dqxCommunication 5dqxwith 5dqxand 5dqxamong 5dqxorganisms.
What 5dqxis 5dqxthe 5dqxdefinition 5dqxof 5dqxbiochemistry? 5dqx- 5dqxANSWERS--Biochemistry
5dqxis 5dqxreferred 5dqxto 5dqxas 5dqxthe 5dqx'chemistry 5dqxof 5dqxlife' 5dqxas 5dqxit 5dqxinvestigates
5dqxhow 5dqxthe 5dqxproperties 5dqxof 5dqxorganisms 5dqxrelate 5dqxto 5dqxtheir 5dqxmolecules.
What 5dqxelements 5dqxare 5dqximportant 5dqxto 5dqxhuman 5dqxlife? 5dqx- 5dqxANSWERS--Bulk
5dqxelements 5dqxand 5dqxtrace 5dqxelements.
Bulk 5dqxelements 5dqxconsists 5dqxof 5dqxnon-metals 5dqxand 5dqxtrace 5dqxelements
5dqxconsist 5dqxof 5dqxtransition 5dqxmetals 5dqxand 5dqxmetals. 5dqx
Trace 5dqxelements 5dqxare 5dqximportant 5dqxin 5dqxsmall 5dqxamounts.
What 5dqxare 5dqxconsidered 5dqxbulk 5dqxelements? 5dqx- 5dqxANSWERS--C, 5dqxH, 5dqxN,
5dqxO, 5dqxP, 5dqxS, 5dqxCl, 5dqxNa, 5dqxK, 5dqxCa.
What 5dqxare 5dqxconsidered 5dqxtrace 5dqxelements? 5dqx- 5dqxANSWERS--Mg, 5dqxV, 5dqxCr,
5dqxMn, 5dqxFe, 5dqxCo, 5dqxNi, 5dqxCu, 5dqxZn, 5dqxMo, 5dqxW, 5dqxSe, 5dqxI.
What 5dqxis 5dqxanother 5dqxname 5dqxfor 5dqxfirefly? 5dqx- 5dqxANSWERS--Lightning 5dqxbug
5dqxor 5dqxglow 5dqxworm. 5dqxFireflies 5dqxare 5dqxalso 5dqxknown 5dqxto 5dqxbe 5dqxbeetles.
What 5dqxare 5dqxthe 5dqxdifferent 5dqxbond 5dqxshapes? 5dqx- 5dqxANSWERS--Linear,
5dqxTrigonal 5dqxplanar, 5dqxTrigonal 5dqxpyramidal, 5dqxTetrahedral, 5dqxBent.
Linear 5dqx- 5dqxANSWERS--180 5dqxdegrees, 5dqxsp 5dqxhybridization. 5dqx
A 5dqxstraight-line 5dqxarrangement 5dqxof 5dqxatoms.
Trigonal 5dqxPlanar 5dqx- 5dqxANSWERS--120 5dqxdegrees, 5dqxsp2 5dqxhybridization. 5dqx
, A 5dqxcentral 5dqxatom 5dqxwith 5dqxthree 5dqxbonded 5dqxgroups 5dqxin 5dqxa 5dqxflat, 5dqxplanar
5dqxstructure.
Trigonal 5dqxPyramidal 5dqx- 5dqxANSWERS--107.5 5dqxdegrees, 5dqxsp3 5dqxhybridization.
A 5dqxtrigonal 5dqxpyramidal 5dqxshape 5dqxoccurs 5dqxwhen 5dqxa 5dqxcentral 5dqxatom 5dqxforms
5dqxthree 5dqxbonds 5dqxand 5dqxhas 5dqxone 5dqxlone 5dqxpair 5dqxof 5dqxelectrons.
Tetrahedral 5dqx- 5dqxANSWERS--109.5 5dqxdegrees, 5dqxsp3 5dqxhybridization. 5dqx
A 5dqxcentral 5dqxatom 5dqxwith 5dqxfour 5dqxsingle 5dqxbonds, 5dqxforming 5dqxa 5dqx3D
5dqxtetrahedron.
Bent 5dqx- 5dqxANSWERS--104.5 5dqxdegrees, 5dqxsp3 5dqxhybridization. 5dqx120 5dqxdegrees,
5dqxsp2 5dqxhybridization. 5dqx
Water: 5dqxThe 5dqxcentral 5dqxatom 5dqxhas 5dqxfour 5dqxelectron 5dqxdomains 5dqx(two
5dqxbonded 5dqxatoms 5dqx+ 5dqxtwo 5dqxlone 5dqxpairs). 5dqxThe 5dqxincreased 5dqxlone 5dqxpair
5dqxrepulsion 5dqxfurther 5dqxreduces 5dqxthe 5dqxbond 5dqxangle 5dqxfrom 5dqxthe 5dqxideal
5dqxtetrahedral 5dqx(~109.5°) 5dqxto 5dqx~104.5°.
What 5dqxis 5dqxknown 5dqxas 5dqxthe 5dqx"medium 5dqxof 5dqxlife"? 5dqx- 5dqxANSWERS--Water
5dqxis 5dqxknown 5dqxas 5dqxthe 5dqx"medium 5dqxof 5dqxlife" 5dqxbecause 5dqxit 5dqxmakes 5dqxup
5dqx70% 5dqxor 5dqxmore 5dqxof 5dqxliving 5dqxthings. 5dqxIn 5dqxhumans, 5dqxwater 5dqxis 5dqxknown
5dqxto 5dqxmake 5dqxup 5dqxa 5dqxlarge 5dqxportion 5dqxof 5dqxblood.
Are 5dqxtransition 5dqxmetals 5dqxcommonly 5dqxfound 5dqxin 5dqxbiological 5dqxorganisms? 5dqx-
5dqxANSWERS--Yes, 5dqxtransition 5dqxmetals 5dqxare 5dqxcommonly 5dqxfound 5dqxin
5dqxbiological 5dqxorganisms 5dqxin 5dqxtrace 5dqxamounts 5dqxor 5dqxsmall 5dqxquantities. 5dqx
For 5dqxexample, 5dqxIron 5dqx(Fe) 5dqxis 5dqxsignificant 5dqxin 5dqxthe 5dqxtransport 5dqxof
5dqxoxygen. 5dqxIron 5dqxis 5dqxa 5dqxmineral 5dqxfound 5dqxwithin 5dqxthe 5dqxprotein
5dqxhemoglobin 5dqxin 5dqxred 5dqxblood 5dqxcells 5dqxand 5dqxhelps 5dqxoxygen 5dqxto 5dqxbe
5dqxdistributed 5dqxfrom 5dqxthe 5dqxlungs 5dqxto 5dqxother 5dqxtissues 5dqxin 5dqxthe 5dqxbody.
Can 5dqxwater 5dqxcan 5dqxmake 5dqxup 5dqx85% 5dqx(by 5dqxmass) 5dqxof 5dqxa 5dqxliving
5dqxorganism. 5dqx- 5dqxANSWERS--Yes. 5dqxSome 5dqxplants 5dqxare 5dqx90% 5dqxwater 5dqxby
5dqxmass.
Properties 5dqxof 5dqxH20 5dqx- 5dqxANSWERS--Water 5dqxis 5dqxpolar 5dqxas 5dqxhydrogen
5dqxunequally 5dqxshares 5dqxelectrons 5dqxwith 5dqxoxygen. 5dqxIt 5dqxhas 5dqxa 5dqxbent
5dqxshape 5dqxdue 5dqxto 5dqxthe 5dqxrepulsion 5dqxof 5dqxelectrons.
Oxygen 5dqxis 5dqxmore 5dqxelectronegative 5dqxthan 5dqxhydrogen 5dqxwhich 5dqxis 5dqxwhy 5dqxit
5dqxis 5dqxa 5dqxpolar 5dqxmolecule.
Why 5dqxare 5dqxsmaller 5dqxelements 5dqxfavored? 5dqx- 5dqxANSWERS--They 5dqxcan
5dqxform 5dqxstable 5dqxcovalent 5dqxbonds.
