Kng-ha̍p-sêng chok-iōng
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Kng-ha̍p-sêng (photosynthesis) ia̍h kng-ha̍p-sêng chok-iōng sī seng-bu̍t kā kng, CO₂, chúi ha̍p-sêng chò phô-tô-thn̂g ham sng-sò͘ ê thêng-sū. Kng-ha̍p-sêng sī siōng tiōng-iàu ê seng-hoà hoán-èng, chha-put-to só͘-ū ê seng-bu̍t bô i bē oa̍h. Kng-ha̍p-sêng pau-hâm chin chē ài hō͘-siōng phoè-ha̍p ê seng-hoà hoán-èng, kui ê thêng-sū chin ho̍k-cha̍p. Ū koá si̍t-bu̍t, chó-lūi (algae), sè-khún, goân-seng seng-bu̍t (protist) ē-hiáu kng-ha̍p-sêng, chiah-ê seng-bu̍t hō chò kng-ha̍p-sêng seng-bu̍t (photoautotroph).