Question

a. A de-shelled egg if placed in pure water then it___but if placed in concentrated salt solution then it____.
b.____ discovered cell.​

Answer 1

Answer:

A. A de shelled egg is surrounded by a semi permeable membrane. When placed in a concentrated salt solution for five minutes, water will flow from the cell to the solution that is exosmosis will take place causing the egg to shrink. This happens because salt solution is hypertonic.

B. scientist Robert Hook

Interested in learning more about the microscopic world, scientist Robert Hooke improved the design of the existing compound microscope in 1665. His microscope used three lenses and a stage light, which illuminated and enlarged the specimens.