
Review materi week ago
Quiz
•
Biology
•
10th Grade
•
Hard
Ester ayu sripurwanti
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Enzim disebut katalis biologis karena…
a. Terbuat dari lemak
b. Menghasilkan energi baru
c. Mempercepat reaksi kimia tanpa ikut berubah
d. Dapat digunakan sekali saja
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Bentuk sisi aktif enzim bersifat…
a. Sama untuk semua substrat
b. Berubah setiap kali reaksi terjadi
c. Spesifik dan hanya cocok dengan substrat tertentu
d. Tidak memengaruhi kerja enzim
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Jika suhu terlalu tinggi, enzim akan…
a. Tidak terpengaruh sama sekali
b. Berubah menjadi substrat
c. Mengalami denaturasi dan kehilangan bentuk aktifnya
d. Bekerja lebih cepat tanpa batas
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Pada percobaan pH terhadap enzim amilase, warna iodine tetap oranye-cokelat menunjukkan…
a. Pati masih ada
b. Semua pati sudah terurai
c. Enzim berhenti bekerja
d. Suhu terlalu rendah
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Enzim amilase berfungsi untuk memecah…
a. DNA menjadi nukleotida
b. Protein menjadi asam amino
c. Lemak menjadi asam lemak
d. Pati menjadi gula sederhana
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apakah enzim dapat digunakan berulang kali dalam reaksi metabolisme?
a. Tidak bisa, hanya sekali pakai
b. Bisa, karena enzim tidak ikut berubah dalam reaksi
c. Bisa, tapi hanya dalam reaksi pencernaan
d. Tidak bisa, karena substrat selalu berbeda
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Suhu optimum untuk enzim adalah…
a.Suhu terendah di mana enzim masih bekerja
b. Suhu yang tidak memengaruhi enzim sama sekali
c. Suhu terbaik di mana enzim bekerja paling maksimal
d. Suhu di mana enzim berhenti bekerja
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