NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It contains more than one cell.
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It is a complete organism.
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It is part of a larger organism.
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It contains different kinds of cells.
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Detailed explanation-1: -It is not part of a larger organism, as it is an independent living entity (eliminate option C). It does not contain different kinds of cells, as it is a single cell (eliminate option D). Therefore, the best statement to describe a bacterial cell is: B It is a complete organism.
Detailed explanation-2: -The correct answer is option 1, i.e. Bacteria contain cytoplasm but viruses do not. Bacteria are prokaryotic single-celled organisms that display all of the characteristics of living organisms. Bacterial cells contain organelles and DNA that are immersed within the cytoplasm and surrounded by a cell wall.
Detailed explanation-3: -In bacteria, the cell wall forms a rigid structure of uniform thickness around the cell and is responsible for the characteristic shape of the cell (rod, coccus, or spiral). Inside the cell wall (or rigid peptidoglycan layer) is the plasma (cytoplasmic) membrane; this is usually closely apposed to the wall layer.