Discovery of the cell

Correct answer: A. Robert Hooke

In 1665, Robert Hooke examined a thin slice of cork under a microscope and saw many small compartments.

Correct answer: B. 1665

Hooke published *Micrographia* in 1665. It included his observations of cork compartments, which he called cells.

Correct answer: A. They looked like tiny rooms or chambers

The compartments in cork reminded Hooke of small rooms, so he called them cells. The cork cells he observed were dead compartments.

Correct answer: A. A network of tiny compartments

Hooke saw many small compartments in the cork. He did not observe swimming microorganisms in that cork sample.

Correct answer: B. Anton van Leeuwenhoek

Anton van Leeuwenhoek used microscopes to observe living microorganisms, which he described as “animalcules.”

Correct answer: A. Hooke saw cork compartments; Leeuwenhoek saw living microorganisms

Hooke described the compartments he saw in cork, while Leeuwenhoek later observed living microorganisms with microscopes.

Correct answer: A. Cork

Hooke examined a thin slice of cork. Its small compartments led him to use the term “cells.”

Correct answer: A. Microscope

A microscope magnifies very small objects, allowing Hooke to see the compartments in a thin slice of cork.

Correct answer: A. He named the tiny cork compartments “cells.”

Hooke used the term “cells” for the small compartments he saw in cork. The other discoveries or ideas are associated with different scientists or later work.

Correct answer: B. Robert Hooke

Robert Hooke used the term “cells” for the small compartments he saw in cork.

Correct answer: A. Micrographia

Hooke published his microscopic observations, including those of cork, in *Micrographia* in 1665.

Correct answer: B. No, they were empty compartments in dead cork tissue

The cork Hooke examined was dead plant tissue. He saw its empty compartments, not living cell contents.

Correct answer: A. Animalcules

Leeuwenhoek described the tiny living organisms he saw as “animalcules,” meaning little animals.

Correct answer: A. Living microorganisms

Hooke described empty compartments in dead cork, while Leeuwenhoek observed living microorganisms.

Correct answer: A. It made very small structures visible

Cells are too small to see clearly with the unaided eye. A microscope magnifies them or their structures so they can be observed.

Correct answer: A. Small rooms

The small, box-like cork compartments reminded Hooke of tiny rooms, which led him to call them cells.

Correct answer: A. Plant material

Cork is plant material. Hooke examined a thin piece of it and described the small compartments he saw.

Correct answer: A. He examined a thin cork sample through a microscope

Looking at thin cork under a microscope revealed small compartments that Hooke described as cells.

Correct answer: A. A drop of pond water

Leeuwenhoek examined water samples and observed tiny living organisms in them. He described these organisms as “animalcules.”

Correct answer: B. Matthias Schleiden and Theodor Schwann

Schleiden concluded that plants are made of cells, and Schwann concluded that animals are made of cells. Together, their conclusions formed a key part of cell theory.