INTRODUCTION
CELL ORGANELLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cells
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Membranes
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Ribosomes
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Anti-Cells
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Detailed explanation-1: -All living organisms are composed of cells, from just one (unicellular) to many trillions (multicellular). Cell biology is the study of cells, their physiology, structure, and life cycle.
Detailed explanation-2: -For instance, all plants and animals are made of eukaryotic cells-sometimes even trillions of them (Figure 4). A eukaryotic cell (left) has membrane-enclosed DNA, which forms a structure called the nucleus (located at center of the eukaryotic cell; note the purple DNA enclosed in the pink nucleus).
Detailed explanation-3: -The CELL THEORY, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology.