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Transcript
The Unit of Life — Cells • The cell is a single unit of life. • The different parts of a plant cell are the cell wall, cell membrane, cytoplasm, nucleus and chloroplasts. • The different parts of an animal cell are the cell membrane, cytoplasm and nucleus. There are similarities and differences between a plant cell and an animal cell. Characteristics Animal cell Plant cell Similarities • Both have cytoplasm, a cell membrane, a nucleus and vacuole(s). Differences • No cellulose cell wall, so the • Has a cellulose cell wall to support animal cell has an irregular the plant cell and give it its regular shape shape • No chloroplasts, so the • Has chloroplasts which contain animal cell cannot make its chlorophyll, enabling the green own food plant to make food during photosynthesis • A cell divides to produce new cells to replace dead and damaged ones. This division is necessary for an organism to grow. More! Most cells contain a nucleus. Without the nucleus, the cell will die. However, the red blood cell is an exception. It has no nucleus, yet it is able to survive. Adapted: Science Partner Upper Block 5/6 © Singapore Asia Publishers Pte Ltd Reproducible for home/classroom use only. STRICTLY NOT FOR SALE. Look for other useful resources: www.sapgrp.com Online_Conquer Science Process Skills 56.indd 9 3/30/2016 10:11:45 AM