Q. Which of the following statements regarding cells is/are correct?- Cells were first discovered by Robert Hooke in 1655.
- Robert Hooke observed the cells in a cork slice with the help of a primitive microscope.
- Leeuwenhoek (1674), with an improved microscope, discovered free-living cells in pond water for the first time.
Select the correct answer from the codes given below:
Answer:
Only 2 and 3
Notes: Cells were first discovered by Robert Hooke in 1665, not 1655. He observed cells in cork using a primitive microscope. In 1674, Leeuwenhoek discovered free-living cells in pond water. Robert Brown discovered the nucleus in 1831, and Purkinje coined ‘protoplasm’ in 1839. Thus, statements 2 and 3 are correct.