Which of the following secondary metabolites are used as drugs ?

Options

A. Abrin and ricin
B. Vinblastin and curcumin
C. Anthocyanins
D. Gums and cellulose

Explanation

To determine which of the following secondary metabolites are used as drugs, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Secondary Metabolites**:
- Secondary metabolites are organic compounds produced by plants, fungi, or microbes that are not directly involved in the normal growth, development, or reproduction of the organism. They often play roles in defense mechanisms and can have various ecological functions.

2. **Analyzing the Options**:
- **Option 1: Ebrin and Ricin**:
- Ebrin and Ricin are known to be toxins derived from plants. They are not used as drugs. Therefore, this option is incorrect.

- **Option 2: Vinblastine and Curcumin**:
- Vinblastine is a chemotherapy medication used to treat various types of cancer. Curcumin, derived from turmeric, has anti-inflammatory and antioxidant properties and is also used in various therapeutic applications. Both are secondary metabolites that are used as drugs. Therefore, this option is correct.

- **Option 3: Anthocyanins**:
- Anthocyanins are pigments found in plants that give red, purple, and blue colors. While they have health benefits, they are not classified as drugs. Therefore, this option is incorrect.

- **Option 4: Gums and Cellulose**:
- Gums are polysaccharides used in food and industry for their thickening properties, and cellulose is a structural component of plant cell walls. Neither are used as drugs. Therefore, this option is incorrect.

3. **Conclusion**:
- After analyzing all the options, the only secondary metabolites that are used as drugs are **Vinblastine and Curcumin**. Hence, the correct answer is **Option 2**.

### Final Answer:
**Vinblastine and Curcumin are the secondary metabolites used as drugs.**

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