Enzymes are physically A chemically B and functionally C. A , B , C respectively are

Options

A. Colloids , proteins , nucleic acids
B. Nucleic acids , proteins , Colloids
C. Colloids , proteins , catalysts
D. Colloids , nucleic acids Catalysts

Answer

To answer the question "Enzymes are physically A, chemically B, and functionally C. A, B, C respectively are," we can break it down into three parts: physical properties, chemical composition, and functional role.

### Step-by-Step Solution:

1. **Identify the Physical Nature of Enzymes (A)**:
- Enzymes are known to be colloidal in nature. This is because they have a high molecular weight and exhibit properties typical of colloids, such as being able to remain suspended in a solution without settling.
- **A = Colloidal**

2. **Identify the Chemical Composition of Enzymes (B)**:
- Enzymes are primarily composed of proteins, which are made up of amino acids. This is a fundamental characteristic of enzymes, as they are biological catalysts.
- **B = Protein**

3. **Identify the Functional Role of Enzymes (C)**:
- The primary function of enzymes is to act as catalysts in biochemical reactions. They speed up reactions without being consumed in the process, which is essential for various metabolic processes in living organisms.
- **C = Catalyst**

### Final Answer:
Thus, A, B, C respectively are:
- A = Colloidal
- B = Protein
- C = Catalyst