OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is true?
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All cells are unicellular.
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All cells are multi-cellular
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Many cells make a tissue.
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Humans have some 50-75 trillion cells.
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Explanation:
Detailed explanation-1: -Every one of the 37 trillion-or-so cells in your body is unique to some extent. Types of cell are determined by the particular proteins they contain – so only a red blood cell has haemoglobin, for example, and a neuron contains different proteins from an immune cell.
Detailed explanation-2: -But what is the total number of cells in a typical human? The short answer is that the body of an average man contains around 30 to 40 trillion cells. The long answer is that scientists do not yet know the exact number. Plus, it depends on whether or not you include the bacteria that are present in and on our bodies.
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