Parts of a Cell Life Science Unit A Lesson 1 Cells A Cell is the smallest unit of a living thing that can perform all life processes. All living things are made of cells. Nucleus The Nucleus is the control center for the cell. The instructions for the cell’s activities are stored in the nucleus. Cytoplasm The Cytoplasm contains the things that the cell needs to carry out its life processes. A gel-like liquid inside the cell membrane that contains the things that the cell needs Chloroplasts Chloroplasts are the special parts in plant cells that trap the sun’s energy. The plant needs this energy to make food. Animal cells do not have chloroplasts.
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