THE CELL
CELL THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cells come from pre-existing cells.
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Groups of cells join to form tissues.
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All organisms are made up of cells.
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Cells are the basic unit of life.
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Detailed explanation-1: -Q. Fred was observing a leaf and a rock with a microscope. Which part of the the cell theory might she be investigating? Cells come from pre-existing cells.
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: -Which of the following observation supports the current cell theory? Cells from a multi-cellular organism can be grown in isolation, separate from the organism.
Detailed explanation-4: -In 1838, German scientist Matthias Schleiden concluded that all plants are made of cells. The next year Theodor Schwann, another German, concluded that all animals were also made of cells.