Yuav ua li cas xim yog cov plastids nyob rau hauv cov nroj tsuag

Lub physiology ntawm cov nroj tsuag yog raws li nyob rau hauv tus txheej txheem ntawm photosynthesis - lub transformation ntawm cov hnub ci zog rau hauv tshuaj muaj zog. Lub ntsiab hloov khoom nruab nrog ntawm photosynthesis yog ib daim ntawv. Lub nto yog them nrog ib tug nyias daim ntawv ntawm daim tawv nqaij - epidermis, uas yog nyob rau hauv hlorenhima - tib yam cov ntaub so ntswg, lub hlwb nyob rau hauv uas tus txheej txheem yog nqa tawm photosynthesis. Nyob rau hauv ib co nroj tsuag ntawm lub epidermis thiab hlorenhimoy yog lwm ntxiv txheej ntawm hlwb, uas yog hu ua tus "hypodermis". hypodermal hlwb twb tshab, thiab lawv lub ntsiab muaj nuj nqi yog scatter lub hnub ci.

hlorenhimy hlwb muaj lub ntsiab organelles, photosynthesis tshwm sim -plastidy. Hais txog dab tsi yog thiab zoo li cas xim yog cov plastids, peb kawm tau los ntawm lub tsev kawm ntawv hoob biology kawm.

Yuav ua li cas yog lub plastids

Plastids - yog lub intracellular organelles, surrounded los ntawm ib tug muab ob npaug rau daim nyias nyias. Hauv txhua yas uas muaj ib tug tshwj xeeb cov kua - matrix. Lub matrix muaj cov enzymes tsim nyog rau cov synthesis ntawm zib - kawg khoom ntawm photosynthesis. Siv ib tug ntau yam ntawm enzymes 6 molecules ntawm carbon dioxide thiab dej 6 yog hloov dua siab tshiab rau hauv 2 zib molecules. Ib tug ntawm lub ntsiab "lam" yog hlorovilla molecule - ntsuab xim, uas muab cov xim rau cov nplooj ntawm cov nroj tsuag.

hom plastids

Yog hais tias ib tug me nyuam nug koj yog xim dab tsi yog cov plastids, tsis txhob maj los teb, hais tias lawv muaj tseeb ntsuab. Tej yam uas yog tsis yog li ntawd yooj yim! Xim plastids txuas xim hais tias lawv muaj. Nyob rau hauv no, muaj ntau ntau hom: proplastids, leucoplasts, chloroplasts, chromoplasts. Nws nyob rau ntawm lub hom thiab cov xim ntawm cov plastids yog.

Proplastids - ib tug tsis muaj kob organelles uas tom qab tsim tag nrho cov lwm yam plastids. Leucoplasts kuj xim tsis muaj. Chloroplasts yog ntsuab, thiab lawv txiav txim cov xim ntawm cov nplooj thiab cov kav.

Chromoplasts - qhov no yog feem ntau cov kab txawv hom ntawm plastid. Lub matrix chromoplasts sederzhatsya carotenoids, thiab nyob rau hauv cov ntaub ntawv no lawv txiav txim li cas xim tej zaum yuav plastid - txiv kab ntxwv, daj, liab, liab, burgundy los yog xim av. Chromoplasts muab tus yam ntxwv xim ntawm paj thiab txiv hmab txiv ntoo.

muaj nuj nqi ntawm plastids

Nyob rau dab tsi xim muaj peev xwm yuav plastids, nws nyob ntawm lawv muaj nuj nqi. Ntau precisely, cov xim muaj nyob rau hauv lawv cov muaj pes tsawg leeg. Lub ntsiab muaj nuj nqi ntawm plastids yog photosynthesis, tab sis tsis yog txhua txhua ntawm cov plastids muaj peev xwm ntawm photosynthesis, thiab tsuas yog chloroform thiab chromoplasts.

Leucoplasts - ib tug "zus laus" plastids, uas yog siv rau khaws cia tshuaj, mas cov hmoov txhuv nplej thiab proplastids muab sawv mus rau tag nrho lwm yam plastids.

Yog li, lub zog yog nyob ntawm seb dab tsi xim muaj peev xwm yuav plastids. Ntsuab chloroplasts ua ke tshiab tshuaj, thiab cov kob thiab kaj chromoplasts nyiam pollinators rau paj. Tsis muaj kob leucoplasts khaws reserves ntawm muab kev pab cuam.