Question

Robert Hooke discovered cells in 1665. What was the specimen that he used to observe cells? 
1. Phloem
2. Cork
3. RBC
4. Platelets

Answer 1

Correct Answer - Option 2 : Cork

The correct answer is Cork.

• Robert Hook discovered cells in 1665 with the help of a compound microscope.
  • A cell is a basic unit of life.
  • The structure observed by Robert Hooke under the microscope was a slice of cork.
  • When he looked at a thin slice of cork under his microscope, he saw the structure like a honeycomb.
  • The Law of elasticity was discovered by him in 1660, which states that the force needed to extend or compress a spring by some distance is proportional to that distance.