9th Class Biology Chapter 7 Test07. Metabolism

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. What is alcoholic fementation?
2. The greatest fuel of energy of cellular respiration is:
   1. Glucose
   2. Proteins
   3. Amino acid
   4. Lipids
3. Which of these uses oxygen as the final acceptor?
   1. glycolysis
   2. electron transport chain
   3. Krebs cycle
   4. photosynthesis
4. Example of enzyme inhibitor is.
   1. Glucose
   2. Bacteria
   3. Cyanide
   4. All of these
5. The term metabolism is derived from the Greek word means:
   1. Split
   2. To change
   3. Division
   4. Break
6. Light reactions take place on:
   1. Thylakoid membranes
   2. Stroma of chloroplasts
   3. Mitochondria
   4. All of these
7. What is anaerobic respiration?
8. The optimum temperature for the maximum working speed of human enzymes is:
   1. 36-37°C
   2. 36-38°C
   3. 37-39°C
   4. 50°C
9. Which of the following is not true about enzymes?
   1. They act as biocatalysts
   2. Enzymes speed up biochemical reactions
   3. They lower the activation energy
   4. They increase the activation energy
10. What no-competitive inhibitors do to the enyme?