Od atoma do organizma Flashcards

1
Q

živi svet

A

atom - molekula - celica - tkivo - organ - organski sistem - organizem

prvi 3 enocelicarji skupaj mnogocelicarji

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2
Q

Kemijska zgradba celic

A

celica je sestavljena iz biogenih elementov

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3
Q

Kaj so biogeni elementi

A

biogeni elementi so zivljenjetvori elementi
Za zivljenje vecine organizmov je nujnih priblizno 25 elementov

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4
Q

Kako se delijo biogeni elementi

A

delijo se na makroelemente in na mikroelemente

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5
Q

Opisi makroelemente

A

V organizmih so v razmeroma velikih kolicinah ( nad 1% )
npr. C, H, O, N, P, S

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6
Q

Opiši mikroelemente

A

So vezani v spojinah
zastopani v zelo majhnih kolicinah ali celo sledeh
npr. Fe, Cl, Cu, I, Mn, Co

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7
Q

Elementi so v celicah redko v elementarnem stanju. Vecinoma so vezani v spojine. Kako delimo te spojine

A

Delimo jih na Anorganske spojine in Organske spojine

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8
Q

Opisi anorganske spojine

A

Gradijo jih preprostejse molekule
izjemoma vsebujejo C
npr. H2O, CO2

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9
Q

Opisi organske spojine

A

gradijo jih vecje molekule
vsebujejo C
npr. ogljikobi hidrati, beljakovine, nukleinske kisline, lipidi, vitamini

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