CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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organisms can gain more energy.
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organisms can grow.
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organisms can mate with other organisms.
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None of the above
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Detailed explanation-1: -All eukaryotic organisms-including aquatic plants and algae-grow through the process of mitosis. Mitosis is a process where one cell divides into two cells (Fig. 2.46). Chromosomes in the original cell are duplicated to ensure that the two new cells have full copies of the necessary genetic information.
Detailed explanation-2: -Unicellular organisms grow by cell division.
Detailed explanation-3: -In unicellular organisms, cell division is the means of reproduction; in multicellular organisms, it is the means of tissue growth and maintenance.
Detailed explanation-4: -All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Single-celled organisms use cell division as their method of reproduction.
Detailed explanation-5: -When cells divide, they make new cells. A single cell divides to make two cells and these two cells then divide to make four cells, and so on. We call this process “cell division” and “cell reproduction, ” because new cells are formed when old cells divide.