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Cells - Coggle Diagram

- - - - Nucleolus: Building or proteins
      - Nuclear envelope: Separate the nuclear content from the surrounding cytoplasm
      - Chromosomes: Contains hereditary materials
  - - - Mitochondria
        
        The power house of cells
        
        Site where energy is released from food substances during aerobic cellular respiration
      - Vacuoles
        
        Small and numerous
        
        Fluid-filled tiny spaces enclosed by the membrane
        
        Contain water dissolving sugar and salt solutions
      - Ribosomes
        
        Small round structures
        
        Either attached to membrane of RER or lie freely in cytoplasm
        
        Involved in the synthesis of proteins
- - - - Starch grain
        
        Storage of food during photosynthesis
        
        Found in the cytoplasm of plant cells
- - - - Red blood cells (RBC)
        
        Structure 1: Circular, biconcave shape
        
        Adaptation to functions: Provide a larger surface area to facilitate faster diffusion of oxygen in and out of the cells
        
        Structure 2: No nucleus
        
        Adaptation to functions 2: To allow the cytoplasm to store more haemoglobins
        
        Structure 3: Contains haemoglobins
        
        Adaptation to functions 3: Helps the cells to transport oxygen
        
        Structure 4: Elastic
        
        Adaptation to functions 4: Enable the cells to squeeze through narrow blood capillaries
    - - Structure 1: Long and narrow protrusions
      - Adaptation to functions 1: To increase the surface area of the cell walls for water and mineral salts absorption from the soil
      - Structure 2: Large vacuole
      - Adaptation to functions 2: To allow maximum absorption of water and mineral salts
    - - Structure 1: Long, narrow , hollow
      - Adaptation to functions 1: To transport water and mineral salts up from roots and leaves
      - Structure 2: Absence of cross walls and protoplasm
      - Adaptations to functions 2: To allow water and mineral salts to move easily through the lumen
      - Structure 3: Lignified cell wall
      - Adaptation to functions 3: To strengthen the walls, support the plant and to prevent collapse of the vessels
  - - - A tissue is defined as a group of similar cells arranged in groups or layers to form a specific function
    - - An organ is defined as a structure which comprises of two or more different types of tissues grouped together to carry out a specific function
    - - A system is defined as a group of several organs worked together to perform a specific function
    - - An organism is made up of different systems working effectively in a coordinated manner