THE CELL
CELL THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a piece of cork (part of a dead plant)
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a piece of leaf
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a piece of animal tissue
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a sample of tooth scum
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Detailed explanation-1: -The cell was first discovered and named by ROBERT HOOKE in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
Detailed explanation-2: -The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork, Hooke observed box-shaped structures, which he called “cells” as they reminded him of the cells, or rooms, in monasteries. This discovery led to the development of the classical cell theory.
Detailed explanation-3: -His cell observations gave no indication of the nucleus and other organelles found in most living cells. Hence, Robert Hooke studied and discovered the cell from a thin slice of cork in the bark of oak tree but that was the dead cell. Robert Hooke saw only the dead walls of plant cells.