Slides, reading, and exam answer

Slides, reading, and exam answer - Algae March 7th...

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Unformatted text preview: Algae March 7th Announcements •  No office hours today •  Changed office hours to Mon 12:30 ­1:30PM •  Next two weeks: Classroom visits and videotaping –  March 14th ­ Project for my teaching class –  March 21st  ­ CSME Director Today’s Ac:vi:es •  General Algae Stuff •  Algae ClassificaKon Chart •  ReflecKon Ques:ons 1.  What traits do all algae have in common? 2.  Why are algae important? 3.  Based on what four primary features are the algae lineages disKnguished by? What traits do all algae share? •  PhotosyntheKc •  Chlorophyll a •  Non ­vascular •  Simple reproducKve structures •  Most with moKle stage •  Most with cell division different than plants Photosynthesis [CH2O] Sugar Chlorophyll •  Pigment found in chloroplasts •  Absorbs sunlight and captures its energy to conduct photosynthesis •  Various types due to small structural differences that allow them to absorb light at slightly different wavelengths Pigments o  Chlorophyll a ­ 1° pigment o  Accessory Pigments: •  Chlorophyll b,c &d •  Carotenoids •  Xanthophylls: •  fucoxanthin (brown) •  Phycolbillins •  Phycoerythrin: Red •  Phycocyanin: Cyan This diversity of pigments broadens the spectra of colors that can be used for photosynthesis Why are algae important? •  Over 50% of photosyntheKc producKon •  Biggest O2 producers •  Important in aquaKc food chain •  Shelter for some aquaKc animals •  Economic products like agar, thickeners •  Edible foods Based on what four primary features are the algae lineages dis:nguished by? •  Chloroplast type and photosyntheKc pigments •  Carbohydrate reserve compounds •  Type, number and posiKon of flagella •  Cell wall compounds SCI 240- ALGAE CLASSIFICATION LINEAGES ! ! ! ! ! ! ! ! ! ! ! ! DIVISION CHL TYPE & PIGMENTS FOOD STORAGE CELL WALL COMPONENTS TYPE, # AND POSITION OF FLAGELLA HABITAT UNI- OR MULTICELLULAR SPECIAL TRAIT ! !"#$%$&"'()* * !")%$&"'()* ! +,-#./$&"'()* * * 0").$&"'()* ! * !"%'1$&"'()* ! * 2)34##)%4$&"'()* ! ! ! ! 54/$6#)-.##)()* ! ! ! 7"$8$&"'()* ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! SCI 240 –ALGAE CLASSIFICATION LINEAGES ! "#$%&'()'*+,-'! ! "#$%&'()'*+,-'! ! G80)&/4H4'/*! ! 7+#';,/4(,)&*! O&+&#4F4/+*! ! ! 7+#';,/4(,)&*! O&+&#4F4/+*! ! ! 7+#';,/4(,)&*! O&+&#4F4/+*! ! ! ! ")B&4)'+&*! ! ! "#$%&'()'*+,-'! DIVISION CHL TYPE & PIGMENTS !"#$%$&"'()! .#&&/!")0'&* 1%)!'!'/-!23! 1'#4+&/4,-*3! 5'/+%4(%6))*! !")%$&"'()* .#&&/!")0'&! 1%)!'!'/-!23! 1'#4+&/4,-*3! 5'/+%4(%6))*! +,-#./$&"'()* 0").$&"'()* E#4?/!")0'&! * 1%)!'!'/-!23! 1'#4+&/4,-*3! 5'/+%4(%6))*! 1%)!'!P!$! 1'#4+&/&*3! Q'/+%4(%6))*! M>8$4Q'/+%,/N! !"%'1$&"'()* .4)-&/!")0'&! 1%)!'!'/-! 1'#4+&/&*3! 5'/+%4(%6))! 2)34##)%4$&"'()* A,'+4;*! 1%)!'!'/-!$3! 1'#4+&/&*!'/-! 5'/+%4(%6))*! 54/$6#)-.##)()* 1%)!'!P$!! 1'#4+&/4,-*3! 5'/+%4(%6))*! M>8$4Q'/+%,/N! 7"$8$&"'()* W&-!")0'&! 1%)!'!P!-3! 1'#4+&/,-*! I%6$42,),/*! M(%6$4&#6+%#,/N! FOOD STORAGE 7+'#$%! CELL WALL COMPONENT S 1&))8)4*&! HABITAT UNI- OR MULTICELLULAR SPECIAL TRAIT =4*+!>#&*%3! +&##&*+#,')3!>&?! ;'#,/&! @/,$&))8)'#3! $4)4/,')3! >,)';&/+48*3! ('#&/$%6;<! A,B&#*&3!*4;&! *6;2,4/+*3!-,B&#*&! $6$)&*! TYPE, # AND POSITION OF FLAGELLA 9!:!;'/6<! "(,$')<! 7+'#$%! 1&))8)4*&! C3!782'(,$')! D#&*%3!E#'$F,*%! I'#';6)4/! "2*&/+! 9!:!J3!'(,$')<! K'#,'2)&! @/,$&))8)'#3!! $4)4/,')! >,)';&/+48*3! ('#&/$%6;<! ! @/,$&))8)'#! R';,/'#,/! 1&))8)4*&3! ')0,/,$!'$,-! C3!)'+&#')! ='#,/&3! E#'$F,*%3!D#&*%! ! =4*+! ;8)+,$&))8)'#! 1%#6*4)'U! ;,/'#,/! R&8$4*,/! 7+'#$%! D)4#,-&'/! 7+'#$%! 1&))8)4*&! C3!8/&V8')! 7,),$4/! 93!'(,$')!4#! '2*&/+! 1&))8)4*&! 4#!'2*&/+! 1&))8)4*&3! *4;&!1"1XL! D#&*%3! ='#,/&! D#&*%3!='#,/&! C3!4/&!+#',),/03! 4/&!0,#-),/0! ='#,/&3! E#'$F,*%3!D#&*%! '2*&/+! ='#,/&3! E#'$F,*%3!D#&*%3! *4;&!Y!-&&(! ?'+&#! ! =4*+! 8/,$&))8)'#3! *4;&!$4)4/,')! ! "))!8/,$&))8)'#3! *4;&!$4)4/,&*! ! @/,$&))8)'#! ! =4*+! ;8)+,$&))8)'#! A,B&#*&3!*4;&! *6;2,4/+*3!-,B&#*&! $6$)&*! L!$%)!!;&;2#! M&/-4*6;2N! R#0*+S$4;()&Q! MT&)(*N3!*4;&! &-,2)&! D4#;!#&*,*+'/+! $6*+*3!B,'2)&!>4#! -&$'-&*! @/,V8&!$&))!?'))*! '/-!-,B,*,4/3!,;(! ()'/F+4/! ")B&4),! I#4-8$&!,;(<! &;8)*,>,&#*!M'0'#N3! *4;&!&-,2)&!M/4#,N! Reflec:on 1) What was the most interesKng thing you have learned in the past week’s of BIOL 240 or SCI 240 ? Why? 2)  What are you confused about, or would you like to becer understand and talk more about next class? 3)  Please give me input on the review sessions for both your lecture and lab exams. What helped and what didn’t help? Would you like me to something similar or different next Kme? Any suggesKons? What are the three basic types of sexual life cycles? •  GameKc Meiosis •  ZygoKc Meiosis •  Sporic Meiosis Game:c Meiosis Zygo:c Meiosis Sporic Meiosis •  Homothallic – one body produces both types of gametes (bisexual) •  Heterothallic – with two bodies producing the gametes (unisexual), a male body and a female body •  Gametophyte – the haploid, gamete ­producing body •  Sporophyte – the diploid, spore ­producing body •  Gametangium – a structure that produces the gametes •  Sporangium – a structure that produces the spores •  In the plant kingdom, meiosis results in the formation of spores. •  As you have seen, there are different ways to make spores: –  in one kind of sporangium – homosporous –  in two kinds of sporangia – heterosporous •  The spores germinate to re-establish the haploid gamete-forming generation – gametophyte •  Depending on the species: –  the gametophyte may be bisexual – homothallic –  the gametophytes may be unisexual – heterothallic ...
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This note was uploaded on 09/23/2011 for the course SCI 240 taught by Professor Staff during the Spring '11 term at S.F. State.

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