
Metabolisme dan Enzim

Flashcard
•
Biology
•
12th Grade
•
Hard
Muhammad Rasyid
FREE Resource
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20 questions
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1.
FLASHCARD QUESTION
Front
Apa yang dimaksud dengan metabolisme?
Back
Metabolisme adalah seluruh reaksi kimia dalam sel makhluk hidup untuk mempertahankan kehidupan.
2.
FLASHCARD QUESTION
Front
Apa itu anabolisme?
Back
Anabolisme adalah proses penyusunan senyawa sederhana menjadi kompleks, yang memerlukan energi (endergonik). Contoh: fotosintesis, sintesis protein, sintesis lemak.
3.
FLASHCARD QUESTION
Front
Apa itu katabolisme?
Back
Katabolisme adalah proses pemecahan senyawa kompleks menjadi sederhana, yang melepaskan energi (eksergonik). Contoh: respirasi sel, pencernaan, fermentasi.
4.
FLASHCARD QUESTION
Front
Apa definisi enzim?
Back
Enzim adalah protein yang mempercepat laju reaksi tanpa ikut habis bereaksi.
5.
FLASHCARD QUESTION
Front
Sebutkan sifat-sifat enzim!
Back
1. Bekerja spesifik terhadap substrat. 2. Dipengaruhi pH (optimum pH netral 6-8). 3. Dipengaruhi suhu (enzim manusia optimum 37°C). 4. Bekerja bolak-balik (reversibel). 5. Dapat rusak (denaturasi) oleh panas/pH ekstrem.
6.
FLASHCARD QUESTION
Front
Apa komponen struktur enzim?
Back
Apoenzim (protein) + Kofaktor (non-protein: ion anorganik/koenzim). Holoenzim = Apoenzim + Kofaktor.
7.
FLASHCARD QUESTION
Front
Jelaskan teori kerja enzim 'Lock and Key'!
Back
Teori 'Lock and Key' menyatakan bahwa substrat cocok dengan sisi aktif enzim seperti kunci dan gembok.
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