3.4 Energy in cells
How do cells use nergy for division?
An organism needs evergy because its cells need energy to grow and divide themselves. Let us see how a cell gets energy.
1. Nutrients enter the cell through the cell membrane.
2. The cell converts the nutrients into energy. Oxygen is needed for this process known as respiration.
This evergy is used by the cell for cel division, growth and repair.
The amount of energy a cell needs depends on its function. A muscle cell needs more energy than a hair cell as a muscle cell needs to repair itself from wear and tear more often. This is because we use ourmuscles daily.