B5 science
- Created by: Samar Mohammed
- Created on: 20-12-11 11:35
Growth and Development
-Cells are the building blocks of all living life
-All cells contain DNA => Nucleic acid which is found in the Nucleus of a cell
-DNA molecules are in the form of a DOUBLE HELIX and contains a GENETIC CODE.
-DNA determines the biological development of a cell from a single-celled organism to complex organisms.
-All cells contain organelles=> Different parts of the cell's structure
Plant cell:
Cell wall-Made of cellulose, this strengthens cell
Permanent vacuole-Filled with Cell Sap, it helps support the cell
Cell Membrane-Controls movement in and out of cell
Chloroplast-Contains CHLOROPHYLL which absorbs light energy to make food
Nucelus-Controls what the cell does,contain genetic info
Cytoplasm-Most chemical reactions take place here
Animal Cell:
Cytoplasm-Most chemical reactions take place here. May contain mitochondria which is where most energy is released in respiration
Ribosome membrane
Ribosomes-Where protein synthesis occurs
Cell membrane-Controls movement in and out of cell
Nucleus-Control…
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