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The cell
The document defines a cell as the smallest unit of life that carries out three vital functions: nutrition, interaction, and reproduction. It compares the structures of animal and plant cells to a city. Both cell types contain a nucleus that controls cell functions like a town hall, a cell membrane that controls what enters and leaves the cell like guards, and cytoplasm where structures float like an atmosphere. Animal cells also contain vacuoles that store water and minerals like reservoirs, while plant cells contain a cell wall that protects the cell like a city wall and chloroplasts containing chlorophyll for photosynthesis like parks.
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The cell
- 1.
- 2. DEFINITION It is thesmallest part in which living things can be divided. Cells carry out the three vital functions: nutrition, interaction and reproduction.
- 4. STRUCTURE OF ANIMAL CELL Ananimal cell is like a city. Each part carries out a different activity.
- 5. NUCLEUS It controls thefunctions of the cell. It is like a Town Hall in a city. NUCLEUS
- 6. CELL MEMBRANE It controlswhat enters and leaves the cell. It is like a group of guards. CELL MEMBRANE
- 7. CYTOPLASM It is asubstance where all parts float around.It is like the atmosphere. CYTOPLASM
- 8. VACUOLES They store waterand minerals. They are like reservoirs. VACUOLES
- 9.
- 10. NUCLEUS It controls thefunctions of the cell. It is like a Town Hall in a city. NUCLEUS
- 11. CELL MEMBRANE It controlswhat enters and leaves the cell. It is like a group of guards. CELL MEMBRANE
- 12. :CYTOPLASM It is asubstance where all parts float around.It is like the atmosphere. CYTOPLASM
- 13. VACUOLES They store waterand minerals. They are like reservoirs. VACUOLES
- 14. CELL WALL It protectsthe cell. It is like the city wall. CELL WALL
- 15. CHLOROPLASTS They contain chlorophyll whichplants need for photosynthesis. They are like parks in a city.CHLOROPLASTS
- 16. REMEMBER! UNICELLULAR ORGANISMS: Theyonly have one cell, for example bacteria. MULTICELLULAR ORGANISMS: They have more than one cell. MICROSCOPE: It is the instruments we use to see cells.
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