
Quiz Enzim dan Respirasi Sel
Quiz
•
Biology
•
11th Grade
•
Practice Problem
•
Easy
Ranti Dwiyani
Used 9+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Stimulus: Grafik menunjukkan laju kerja enzim terhadap suhu. Pada suhu 10 °C reaksi lambat, meningkat pada 35 °C, lalu menurun drastis setelah 50 °C. Apa kesimpulan dari grafik tersebut?
Enzim stabil pada suhu tinggi
Suhu rendah menyebabkan denaturasi
Suhu optimum enzim sekitar 35-40 °C
Enzim bekerja sama baiknya di semua suhu
Enzim tidak dipengaruhi suhu
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Enzim katalase bekerja optimal pada pH netral. Jika ditempatkan pada pH 2, yang terjadi adalah …
Kerja enzim semakin cepat
Enzim mengalami denaturasi
Enzim lebih aktif karena pH asam
Konsentrasi substrat meningkat
Produk reaksi bertambah
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Semakin tinggi konsentrasi substrat hingga titik tertentu, kecepatan reaksi enzim meningkat. Hal ini karena …
Semua sisi aktif enzim terisi substrat
Enzim berubah menjadi substrat
Energi aktivasi meningkat
Produk menekan kerja enzim
pH optimum berubah
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seorang siswa mencoba percobaan pengaruh suhu terhadap amilase. Hasilnya: 20 °C → pati hanya sedikit terurai 37 °C → pati terurai sempurna 80 °C → tidak ada reaksi. Interpretasi yang benar adalah …
Enzim amilase bekerja lebih baik pada suhu dingin
Enzim tahan panas tinggi
Suhu optimum enzim amilase sekitar 37 °C, suhu tinggi menyebabkan denaturasi
Semakin tinggi suhu semakin baik kerja enzim
Enzim tidak dipengaruhi suhu
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Glikolisis terjadi di …
Sitoplasma
Inti sel
Mitokondria
Ribosom
Kloroplas
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Produk bersih glikolisis dari 1 molekul glukosa adalah …
2 ATP, 2 NADH, 2 piruvat
4 ATP, 2 FADH2, 2 CO2
6 ATP, 6 NADH, 2 O2
38 ATP
2 etanol, 2 CO2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dekarboksilasi oksidatif mengubah …
Glukosa → piruvat
Piruvat → asetil-KoA
Asetil-KoA → oksaloasetat
NADH → ATP
FADH2 → O2
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