Mitochondria were first discovered by

Options

A. Altmann
B. Kolliker
C. Benda
D. Schimper

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks who first discovered mitochondria. It is important to identify the correct scientist from the given options.

2. **Reviewing the Options**: The options provided are:
- A) Treviranus
- B) Kolliker
- C) Benda
- D) Schimper

3. **Analyzing Each Option**:
- **Option A: Treviranus** - He is associated with the term "bioblast" but did not discover mitochondria. Therefore, this option is incorrect.
- **Option B: Kolliker** - He is credited with the discovery of mitochondria in 1857. This makes him the correct answer.
- **Option C: Benda** - He introduced the term "mitochondria" in 1901 but did not discover them. Thus, this option is incorrect.
- **Option D: Schimper** - He is known for his work on plastids, not mitochondria. Therefore, this option is also incorrect.

4. **Conclusion**: Based on the analysis, the correct answer is **B) Kolliker**, as he was the first to discover mitochondria.