cells and cell processes

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Mind Map on cells and cell processes, created by jamie long on 04/09/2013.
jamie long
Mind Map by jamie long, updated more than 1 year ago
jamie long
Created by jamie long about 12 years ago
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Resource summary

cells and cell processes
  1. vacuole- space filled with liquid cell starch
    1. cell wall- made of cellulose, surrounds and supports cell
      1. chloroplast- absorbs light energy to produce glucose by photosynthesis
        1. protista- single celled algae that have features similar to both plant and animal cells.
          1. e.g euglena, has no cell wall but chloroplast, has an eyespot to detect light, flagellum to move and contractile vacuole to remove water from cell
          2. bacteria, fungi, viruses and unicellular algae are all organisms which are microbes
            1. what features are common to all cells?
              1. cytoplasm- jelly material that is the site of chemical reaction
                1. nucleus- contains DNA, the cemical that controls the cells activities.
                  1. cell membrane- controls the entry of materials into and out of the cell
                  2. what are the feautures of yeast?
                    1. single celled organism
                      1. asexual reproduction
                        1. reproduced by budding
                        2. virus: smaller than bacteria, reproduces inside host cells, new viruses are assembled inside host cells.
                          1. new viruses attack new host cells
                          2. bacteria are single celled organisms, they reproduce by binary fission(dividing in 2) and they are thought to be the earliest form of life
                            1. specialized cells are cells who's shape had been adapted to suit the function of the cell.
                              1. specialisation occurs when the organism becomes multicellular (made of lots of cells)
                              2. proteins are made from a chain of amino acids linked togethor to form a specific shape.
                                1. they have a number of functions e.g enzymes hormones and muscles.
                                2. enzymes are biological catalysts that speed up the rate of reaction without becoming a product of itslef, they are made of protein
                                  1. they control chemical reactions of cells
                                  2. stem cells are cells that are able to differentiate into other cells .
                                    1. they are found in; embryos, bone marrow and meristems of plants
                                    2. 2 types of cell division
                                      1. mitosis- the production of new body cells
                                        1. meiosis- the production of gametes
                                        2. denaturing is when the enzymes active site has changed shape and is no longer able to catalyse a reaction
                                          1. changing pH denatures the enzyme
                                            1. boiling denatures the enzyme
                                            2. function of DNA
                                              1. the order of the bases from a code , every three letters codes for an amino acid (triplet code)
                                                1. the order of the bases dictates the order of the amino acids and this creates protein e.g an enzyme or an hormone
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