

Sistem Ekskresi (Pert 1)
Presentation
•
Biology
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12th Grade
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Practice Problem
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Hard
tuti anggriani
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5 Slides • 0 Questions
1
SISTEM EKSKRESI
PADA MANUSIA
By : Tuti Anggriani, S.Si
SMP Negeri 1 Loa Lulu
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Ekskresi merupakan proses pengeluaran zat sisa metabolisme yang tidak berguna bagi tubuh.
1. Definisi Ekskresi
3
Urine
Ginjal
Keringat
Kulit
Karbondioksida dan Uap Air
Paru-paru
Getah Empedu
Hati
Mengekskresikan
Mengekskresikan
Mengekskresikan
2. Organ Ekskresi dan Zat yang dihasilkan
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a. Struktur ginjal dan proses perbentukan urine
Proses pembentukan urin di ginjal terdiri dari tiga tahap yaitu:
Filtrasi (penyaringan),
Reabsorpsi (penyerapan kembali)
Augmentasi (pengeluaran zat).
5
2. Kulit
Keringatdikeluarkan oleh kulit melalui kelenjar keringat (glandula sudorifera) yang terletak di lapisan dermis kulit. Kelenjar keringat akan mengeluarkan 5–10% cairan dari seluruh sisa metabolisme tubuh.
SISTEM EKSKRESI
PADA MANUSIA
By : Tuti Anggriani, S.Si
SMP Negeri 1 Loa Lulu
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