SSC CGL (Prelims) General: General Science - Biology questions with solutions

Q1. About enzymes: 1. They lower activation energy. 2. They are substrate specific. 3. They are unaffected by temperature.

1. 1 and 2
2. 2 and 3
3. 1 and 3
4. 1, 2, and 3

Answer: 1 and 2

Enzymes lower the activation energy of biochemical reactions and are usually substrate specific. However, they are affected by temperature; extreme temperatures can reduce activity or denature them.