Cell Growth and Division
Cell growth and division describe how a cell increases in size, prepares its contents, and divides to form new cells.
Practice This ConceptMain explanation
Teacher explanation
A cell cannot simply grow indefinitely because its surface area does not keep up with its volume. A very large cell faces difficulty in exchange of materials and control. Therefore, cells grow, copy their genetic material, prepare for division, and then divide to support growth, repair, and replacement.
Example
A wound heals because nearby cells divide and replace damaged cells.
Simple analogy
Cells divide to stay small enough to work well.
Common confusion
Students often think cell division happens only for reproduction, but it is also needed for growth and repair in multicellular organisms.
Exam tip
When asked why cells divide, mention surface-area-to-volume limitation and the need for growth or repair.
Answer writing and exam use
1-mark use
Write the exact meaning of cell growth and division in one clean line.
2-mark use
Define cell growth and division and add one example or condition.
3-mark use
Explain cell growth and division, show the method or example, and mention the common mistake.
Practice this concept with focused MCQs
Open the concept quiz intro first, review the test details, and then start a focused MCQ set from this concept only. Instant score and answer review are live now.
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