Kembali ke Galeri Kuis
Biologi
Kelas 10–12
Grade 9 Enzymes
Dibagikan oleh Amro Abdoun
2 jam yang lalu
5 Soal
Diambil 0 kali
Daftar gratis untuk memakai kuis ini
Pratinjau Soal
Seluruh 5 soal ditampilkan — daftar gratis untuk mengambil kuis ini dan memainkannya bersama kelas Anda.
1
What is the primary function of enzymes in living organisms?
A
To store genetic information for protein synthesis
B
To provide structural support to cell membranes
C
To serve as a source of energy for cellular processes
D
To act as biological catalysts that speed up chemical reactions
2
Which of the following best describes the effect of temperature on enzyme activity?
A
Enzyme activity decreases steadily as temperature increases.
B
Enzyme activity increases indefinitely as temperature rises.
C
Enzyme activity is unaffected by temperature changes.
D
Enzyme activity increases with temperature up to an optimum, then decreases due to denaturation.
3
A student tests the effect of pH on an enzyme found in the human stomach. At which pH would the enzyme most likely show maximum activity?
A
pH 2
B
pH 12
C
pH 9
D
pH 7
4
If the concentration of substrate is increased while enzyme concentration remains constant, what happens to the rate of reaction?
A
The rate decreases because excess substrate inhibits the enzyme.
B
The rate increases continuously without limit.
C
The rate remains constant regardless of substrate concentration.
D
The rate increases until all enzyme active sites are occupied, then levels off.
5
Which statement correctly explains why an enzyme is said to be 'specific'?
A
Each enzyme has a unique active site that fits only specific substrates.
B
Each enzyme can catalyze any reaction in the cell.
C
Enzymes are specific only to temperature and pH conditions.
D
Enzymes are specific because they are made of proteins.
Ingin memakai kuis siap pakai ini?
Daftar SparkMyClass gratis, ambil kuis dengan sekali klik, dan buat permainan kuis interaktif Anda sendiri.
Daftar Gratis