LP 2 cromatofori Flashcards

1
Q

tipuri cromatofori+ ex sp.

A

campanulati (Chlorella sp.)
reticulati (Chladophora sp.-lana broastei)
bandiformi( Spirogyra sp.-matasea broastei)

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2
Q

cromatofori-definitie

A

plastide verzi, specifice algelor verzi, mari, ocupa aproape tot lumenul.

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3
Q

pirenoizi

A

formatiuni sferice, de natura proteica, in jurul carora se depoziteaza amidon

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4
Q

mod de lucru chlorella

A

se ia suspensie cu o pipeta, se pun 1-2 picaturi pe lama, se obs la microscop

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5
Q

mod de lucru spirogyra sp.

A

se iau cu pensa cateva filamente algale, se etaleaza pe apa intr-o picatura de apa

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6
Q

observatii spirogyra

A

tal pluricelular, filamentos, neramificat. celulele sunt alungite, heterodiametrice, dispuse cap la cap. prezinta invelis mucilaginos. cromatofori bandiformi spiralati. nucleu central in punga citoplasmatica

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7
Q

mod de lucru chladophora

A

ca la spirogyra

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8
Q

observatii chladophora

A

tal pluricelular, filamentos, ramificat. plurinucleata (intre 100-1000 nuclee in functie de specie), 1 singur cromatofor, mare, de forma unui cilindru perforat, cu aspect de retea (reticulat), dispus parietal. aspra la pipait.

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