Consider the following statements: 1. The virus was discovered by Ivanovski. 2. The bacteria were discovered by Rudolf Virchow.

Question

Consider the following statements:

1. The virus was discovered by Ivanovski.

2. The bacteria were discovered by Rudolf Virchow.

3. The cell theory was proposed by Schleiden and Schwann.

Which of the statements given above is/are correct?

(a) 1 and 2

(b) 2 and 3

(c) 1 and 3

(d) 1, 2 and 3

Answer 1

The correct option is: (c) 1 and 3

Explanation:

In 1892, Dmitri Ivanovsky for the first time had described a non-bacterial pathogen which infected tobacco plants. Then the actual discovery of tobacco mosaic virus was done by Martinus Beijerinck in 1898. Anton van Leeuwenhoek of 17th century is credited with the discovery of bacteria for the first time in a drop of pond water under a glass lens. Theodor Schwann, Matthias Jakob Schleiden, and Rudolf Virchow proposed cell theory. In 1839, Schwann and Schleiden suggested that cells were the basic unit of life.